Internet Engineering Task Force (IETF) D. Kumar
Request for Comments: 7784 S. Salam
Category: Standards Track Cisco
ISSN: 2070-1721 T. Senevirathne
February 2016
Transparent Interconnection of Lots of Links (TRILL)
Operations, Administration, and Maintenance (OAM) MIB
Abstract
This document specifies the MIB for the OAM (Operations,
Administration, and Maintenance) objects for IETF TRILL (Transparent
Interconnection of Lots of Links).
Status of This Memo
This is an Internet Standards Track document.
This document is a product of the Internet Engineering Task Force
(IETF). It represents the consensus of the IETF community. It has
received public review and has been approved for publication by the
Internet Engineering Steering Group (IESG). Further information on
Internet Standards is available in Section 2 of RFC 5741.
Information about the current status of this document, any errata,
and how to provide feedback on it may be obtained at
http://www.rfc-editor.org/info/rfc7784.
Copyright Notice
Copyright (c) 2016 IETF Trust and the persons identified as the
document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents
(http://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents
carefully, as they describe your rights and restrictions with respect
to this document. Code Components extracted from this document must
include Simplified BSD License text as described in Section 4.e of
the Trust Legal Provisions and are provided without warranty as
described in the Simplified BSD License.
Kumar, et al. Standards Track [Page 1]RFC 7784 TRILL OAM MIB February 2016
Table of Contents
1. Introduction ....................................................2
2. The Internet-Standard Management Framework ......................3
3. Conventions .....................................................3
4. Overview ........................................................4
5. Structure of the MIB Module .....................................4
5.1. Textual Conventions ........................................4
5.2. The TRILL OAM MIB Subtree ..................................4
5.3.1. The Notifications Subtree ...........................5
5.3.2. The Table Structures ................................5
5.3.2.1. trillOamMepTable Objects ...................5
5.3.2.2. trillOamMepFlowCfgTable Objects ............6
5.3.2.3. trillOamPtrTable Objects ...................6
5.3.2.4. trillOamMtvrTable Objects ..................6
5.3.2.5. trillOamMepDbTable Objects .................6
6. Relationship to Other MIB Modules ...............................6
6.1. Relationship to the IEEE8021-TC-MIB ........................7
6.2. Relationship to the IEEE8021-CFM-MIB .......................7
6.3. MIB Modules Required for IMPORTS ...........................8
7. Definitions .....................................................8
8. Security Considerations ........................................44
9. IANA Considerations ............................................47
10. References ....................................................47
10.1. Normative References .....................................47
10.2. Informative References ...................................49
Acknowledgments ...................................................50
Authors' Addresses ................................................50
1. Introduction
Overall, TRILL OAM meets the requirements given in [RFC6905]. The
general framework for TRILL OAM is specified in [RFC7174]. The
details of the Fault Management (FM) solution, conforming to that
framework, are presented in [RFC7455]. The solution leverages the
message format defined in Ethernet Connectivity Fault Management
(CFM) [802.1Q] as the basis for the TRILL OAM message channel.
This document uses the CFM MIB modules defined in [802.1Q] as the
basis for TRILL OAM MIB and augments the existing tables to add new
TRILL managed objects required by TRILL. This document further
specifies a new table with associated managed objects for TRILL OAM-
specific capabilities.
Kumar, et al. Standards Track [Page 2]RFC 7784 TRILL OAM MIB February 2016
2. The Internet-Standard Management Framework
For a detailed overview of the documents that describe the current
Internet-Standard Management Framework, please refer to section 7 of
RFC 3410 [RFC3410].
Managed objects are accessed via a virtual information store, termed
the Management Information Base or MIB. MIB objects are generally
accessed through the Simple Network Management Protocol (SNMP).
Objects in the MIB are defined using the mechanisms defined in the
Structure of Management Information (SMI). This memo specifies a MIB
module that is compliant to the SMIv2, which is described in STD 58,
RFC 2578 [RFC2578], STD 58, RFC 2579 [RFC2579] and STD 58, RFC 2580
[RFC2580].
3. Conventions
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and
"OPTIONAL" in this document are to be interpreted as described in RFC
2119 [RFC2119].
Abbreviations used in the document include the following:
CCM - Continuity Check Message [802.1Q]
EMS - Element Management System [Q.840.1]
MEP - Maintenance End Point [RFC7174] [802.1Q]
MIP - Maintenance Intermediate Point [RFC7174] [802.1Q]
MP - Maintenance Point [RFC7174]
MTVM - Multi-destination Tree Verification Message [RFC7455]
MTVR - Multi-destination Tree Verification Reply [RFC7455]
NMS - Network Management System [Q.840.1]
PTM - Path Trace Message [RFC7455]
PTR - Path Trace Reply [RFC7455]
Kumar, et al. Standards Track [Page 3]
RFC 7784 TRILL OAM MIB February 2016
4. Overview
The TRILL OAM MIB module provides an overall framework for managing
TRILL OAM. It leverages the IEEE8021-CFM-MIB and IEEE8021-CFM-V2-MIB
modules defined in [802.1Q], and it augments the Maintenance End
Point (MEP) and MEP Db entries. It also adds a new table for
messages specific to TRILL OAM.
5. Structure of the MIB Module
Objects in this MIB module are arranged into subtrees. Each subtree
is organized as a set of related objects. The various subtrees are
shown below, supplemented with the required elements of the
IEEE8021-CFM-MIB module.
5.1. Textual Conventions
Textual conventions are defined to represent object types relevant to
the TRILL OAM MIB.
5.2. The TRILL OAM MIB Subtree
The TRILL OAM MIB tree described below consists of
trilloamNotifications (Traps) and trillOamMibObjects. The
trilloamNotifications are sent to the management entity whenever a
MEP loses/restores contact with its peer flow MEPs.
The TRILL OAM MIB per MEP Objects are defined in the
trillOamMepTable. The trillOamMepTable augments the
dot1agCfmMepEntry (please see Section 6.1) defined in
IEEE8021-CFM-MIB. It includes objects that are locally defined for
an individual MEP and its associated flow.
Kumar, et al. Standards Track [Page 4]
RFC 7784 TRILL OAM MIB February 2016
TRILL-OAM-MIB
|--trillOamNotifications (trillOamMib 0}
|--trillOamFaultAlarm
|--trillOamMibObjects {trillOamMib 1}
|--trillOamMep {trillOamMibObjects 1}
|--trillOamMepTable {trillOamMep 1} - Local TRLL config
|--trillOamMepFlowCfgTable
|--trillOamPtrTable
|--trillOamMtvrTable
|--trillOamMepDbTable
5.3.1. The Notifications Subtree
Notifications (fault alarms) are sent to the management entity with
the OID of the MEP that has detected the fault. Notifications are
generated whenever MEP loses/restores contact with its peer flow
MEPs.
5.3.2. The Table Structures
The TRILL OAM MIB per MEP Objects are defined in the
trillOamMepTable. The trillOamMepTable augments the
dot1agCfmMepEntry (please see Section 6.1) defined in
IEEE8021-CFM-MIB. It includes objects that are locally defined for
an individual MEP and its associated flow.
5.3.2.1. trillOamMepTable Objects
This table is an extension of the dot1agCfmMepTable. Rows are
automatically added or deleted from this table based upon row
creation and destruction of the dot1agCfmMepTable.
This table represents the local MEP TRILL OAM configuration table.
The primary purpose of this table is provide local parameters for the
TRILL OAM function found in [RFC7455] and instantiated at a MEP.
Kumar, et al. Standards Track [Page 5]RFC 7784 TRILL OAM MIB February 2016
5.3.2.2. trillOamMepFlowCfgTable Objects
Each row in this table represents a Flow Configuration Entry for the
associated MEP. This table uses four indices. The first three
indices are the indices of the Maintenance Domain, MANET, and MEP
tables. The fourth index is the specific Flow Configuration Entry on
the selected MEP. Some writable objects in this table are only
applicable in certain cases (as described under each object below),
and attempts to write values for them in other cases will be ignored.
5.3.2.3. trillOamPtrTable Objects
Each row in this table represents a Path Trace Reply Entry for the
Defined MEP and Transaction. This table uses four indices. The
first three indices identify the MEP and the fourth index specifies
the Transaction Identifier. This Transaction Identifier uniquely
identifies the response for a MEP, which can have multiple flows.
5.3.2.4. trillOamMtvrTable Objects
This table includes managed objects for the Multi-destination Reply.
Each row in the table represents a Multi-destination Reply Entry for
the defined MEP and Transaction. This table uses the following five
indices: 1) Maintenance Domain, 2) MANET, 3) MEP tables, 4)
Transaction Identifier of selected MEP, and 5) receive order of
Multi-destination replies.
Some writable objects in this table are only applicable in certain
cases (as described under each object below), and attempts to write a
value for them in other cases will be ignored.
5.3.2.5. trillOamMepDbTable Objects
This table is an augmentation of the dot1agCfmMepDbTable, and rows
are automatically added or deleted from this table based upon row
creation and destruction of the dot1agCfmMepDbTable.
6. Relationship to Other MIB Modules
The IEEE8021-CFM-MIB [IEEE8021-CFM-MIB] and [LLDP-MIB] contain
objects that are relevant to the TRILL OAM MIB. Management objects
contained in these modules are not duplicated here, to reduce overlap
to the extent possible. From the IEEE8021-CFM-MIB, the following
objects are imported:
o dot1agCfmMdIndex
o dot1agCfmMaIndex
Kumar, et al. Standards Track [Page 6]RFC 7784 TRILL OAM MIB February 2016
o dot1agCfmMepIdentifier
o dot1agCfmMepEntry
o dot1agCfmMepDbEntry
o Dot1agCfmIngressActionFieldValue
o Dot1agCfmEgressActionFieldValue
o Dot1agCfmRemoteMepState
From the [LLDP-MIB], the following objects are imported:
o LldpChassisId
o LldpChassisIdSubtype
o LldpPortId
6.1. Relationship to the IEEE8021-TC-MIB
In TRILL, traffic labeling can be done using either a 12-bit VLAN or
a 24-bit Fine-Grained Label (FGL) [RFC7172].
The IEEE8021-TC-MIB definition of IEEE8021ServiceSelectorType
includes the following two values:
- 1 representing a vlanId, and
- 2 representing a 24-bit isid
We have chosen to use value 2 for TRILL's FGL. As such, TRILL OAM
MIB will import IEEE8021ServiceSelectorType,
IEEE8021ServiceSelectorValueOrNone, and IEEE8021ServiceSelectorValue
from IEEE8021-TC-MIB.
6.2. Relationship to the IEEE8021-CFM-MIB
trillOamMepTable augments dot1agCfmMepEntry. Implementation of
IEEE8021-CFM-MIB is required as we are augmenting the IEEE-CFM-MIB
Table. Objects/Tables that are not applicable to a TRILL
implementation have to be handled by the TRILL implementation
backend, and appropriate default values, as described in
IEEE8021-CFM-MIB, have to be returned.
Kumar, et al. Standards Track [Page 7]RFC 7784 TRILL OAM MIB February 2016
The TRILL OAM implementation doesn't support the Link Trace Message
or Link Trace Reply, since, as described in RFC 7455, the Path Trace
Message and Reply for unicast traffic and Multi-destination Tree
verification Message and Reply for multicast traffic have been
substituted for them. Statistics for these messages should default
as per IEEE8021-CFM-MIB.
6.3. MIB Modules Required for IMPORTS
The following MIB module IMPORTS objects from SNMPv2-SMI [RFC2578],
SNMPv2-TC [RFC2579], SNMPv2-CONF [RFC2580], IEEE-8021-CFM-MIB, and
LLDP-MIB.
7. Definitions
TRILL-OAM-MIB DEFINITIONS ::= BEGIN
IMPORTS
MODULE-IDENTITY,
OBJECT-TYPE,
Counter32,
Unsigned32,
Integer32,
mib-2,
NOTIFICATION-TYPE
FROM SNMPv2-SMI
RowStatus,
TruthValue,
TimeStamp,
MacAddress
FROM SNMPv2-TC
OBJECT-GROUP,
NOTIFICATION-GROUP,
MODULE-COMPLIANCE
FROM SNMPv2-CONF
dot1agCfmMdIndex,
dot1agCfmMaIndex,
dot1agCfmMepIdentifier,
dot1agCfmMepEntry,
dot1agCfmMepDbEntry,
Dot1agCfmIngressActionFieldValue,
Dot1agCfmEgressActionFieldValue,
Dot1agCfmRemoteMepState
FROM IEEE8021-CFM-MIB
LldpChassisId,
LldpChassisIdSubtype,
LldpPortId,
Kumar, et al. Standards Track [Page 8]RFC 7784 TRILL OAM MIB February 2016
LldpPortIdSubtype
FROM LLDP-MIB;
trillOamMib MODULE-IDENTITY
LAST-UPDATED "201601141200Z"
ORGANIZATION "IETF TRILL WG"
CONTACT-INFO
"Email: trill@ietf.org"
DESCRIPTION
"This MIB module contains the management objects for the
management of TRILL Services Operations, Administration
and Maintenance.
Initial version. Published as RFC 7784.
Copyright (c) 2016 IETF Trust and the persons identified
as authors of the code. All rights reserved.
Redistribution and use in source and binary forms, with
or without modification, is permitted pursuant to, and
subject to the license terms contained in, the Simplified
BSD License set forth in Section 4.c of the IETF Trust's
Legal Provisions Relating to IETF Documents
(http://trustee.ietf.org/license-info).
Kumar, et al. Standards Track [Page 9]RFC 7784 TRILL OAM MIB February 2016
-------------------------------------------------------------
Abbreviations Used
Term Definition
CFM Connectivity Fault Management
IEEE Institute of Electrical and Electronics
Engineers
IETF Internet Engineering Task Force
ITU-T International Telecommunication Union -
Telecommunication Standardization Bureau
FCOI The Final, Cross-Connect Error, Out-of-band,
and In-band flags from the TRILL OAM Application
Identifier TLV.
LBM Loopback Message
MA Maintenance Association (equivalent to a MEG)
MAC Media Access Control
MD Maintenance Domain (equivalent to an OAM
Domain in Metro Ethernet Forum (MEF) 17)
MEG Maintenance Entity Group (equivalent to a MA)
MEG Level Maintenance Entity Group Level (equivalent to
MD Level)
MEP Maintenance Association End Point
MIB Management Information Base
MIP Maintenance Domain Intermediate Point
MTVM Multi-destination Tree Verification Message
MTVR Multi-destination Tree Verification Reply
OAM Operations, Administration, and Maintenance
On-Demand OAM actions that are initiated via
manual intervention for a limited time to carry
out diagnostics. On-demand OAM can result in
singular or periodic OAM actions during the
diagnostic time interval.
PTM Path Trace Message
PTR Path Trace Reply
RFC Request for Comments
SNMP Simple Network Management Protocol
TLV Type-Length-Value, a method of encoding Objects
TRILL Transparent Interconnection of Lots of Links
VLAN Virtual LAN"
REVISION "201601141200Z"
DESCRIPTION
"Initial version. Published as RFC 7784."
::= { mib-2 238 }
--
Kumar, et al. Standards Track [Page 10]RFC 7784 TRILL OAM MIB February 2016
-- *****************************************************************
-- Object Definitions in the TRILL OAM MIB Module
-- *****************************************************************
trillOamNotifications OBJECT IDENTIFIER
::= { trillOamMib 0 }
trillOamMibObjects OBJECT IDENTIFIER
::= { trillOamMib 1 }
trillOamMibConformance OBJECT IDENTIFIER
::= { trillOamMib 2 }
-- *****************************************************************
-- Groups in the TRILL OAM MIB Module
-- *****************************************************************
trillOamMep OBJECT IDENTIFIER
::= { trillOamMibObjects 1 }
-- *****************************************************************
-- TRILL OAM MEP Configuration
-- *****************************************************************
trillOamMepTable OBJECT-TYPE
SYNTAX SEQUENCE OF TrillOamMepEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table is an extension of the dot1agCfmMepTable and
rows are automatically added or deleted from this table
based upon row creation and destruction of the
dot1agCfmMepTable.
This table represents the local MEP TRILL OAM
configuration table. The primary purpose of this table
is provide local parameters for the TRILL OAM function
found in RFC 7455 and instantiated at a MEP."
REFERENCE "RFC 7455"
::= { trillOamMep 1 }
trillOamMepEntry OBJECT-TYPE
SYNTAX TrillOamMepEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The conceptual row of trillOamMepTable."
AUGMENTS { dot1agCfmMepEntry }
::= { trillOamMepTable 1 }
Kumar, et al. Standards Track [Page 11]RFC 7784 TRILL OAM MIB February 2016
TrillOamMepEntry ::= SEQUENCE {
trillOamMepRName Unsigned32,
trillOamMepNextPtmTId Counter32,
trillOamMepNextMtvmTId Counter32,
trillOamMepPtrIn Counter32,
trillOamMepPtrInOutofOrder Counter32,
trillOamMepPtrOut Counter32,
trillOamMepMtvrIn Counter32,
trillOamMepMtvrInOutofOrder Counter32,
trillOamMepMtvrOut Counter32,
trillOamMepTxLbmDestRName Unsigned32,
trillOamMepTxLbmHC Unsigned32,
trillOamMepTxLbmReplyModeOob TruthValue,
trillOamMepTransmitLbmReplyIp OCTET STRING,
trillOamMepTxLbmFlowEntropy OCTET STRING,
trillOamMepTxPtmDestRName Unsigned32,
trillOamMepTxPtmHC Unsigned32,
trillOamMepTxPtmReplyModeOob TruthValue,
trillOamMepTransmitPtmReplyIp OCTET STRING,
trillOamMepTxPtmFlowEntropy OCTET STRING,
trillOamMepTxPtmStatus TruthValue,
trillOamMepTxPtmResultOK TruthValue,
trillOamMepTxPtmSeqNumber Unsigned32,
trillOamMepTxPtmMessages Integer32,
trillOamMepTxMtvmTree Unsigned32,
trillOamMepTxMtvmHC Unsigned32,
trillOamMepTxMtvmReplyModeOob TruthValue,
trillOamMepTransmitMtvmReplyIp OCTET STRING,
trillOamMepTxMtvmFlowEntropy OCTET STRING,
trillOamMepTxMtvmStatus TruthValue,
trillOamMepTxMtvmResultOK TruthValue,
trillOamMepTxMtvmMessages Integer32,
trillOamMepTxMtvmSeqNumber Unsigned32,
trillOamMepTxMtvmScopeList OCTET STRING,
trillOamMepDiscontinuityTime TimeStamp
}
trillOamMepRName OBJECT-TYPE
SYNTAX Unsigned32 (0..65471)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object contains the RBridge Nickname field
of the TRILL RBridge as defined in RFC 6325,
Section 3.7."
REFERENCE "RFC 7455 and RFC 6325, Section 3.7"
::= { trillOamMepEntry 1 }
Kumar, et al. Standards Track [Page 12]RFC 7784 TRILL OAM MIB February 2016
trillOamMepNextPtmTId OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Next Sequence Number / Transaction Identifier to be sent in
a Multi-destination message. This Sequence Number can be
zero because it wraps around. Implementation of this
identifier should be should provide a unique code value in
order to identify the Transaction Identifier for a MEP with
multiple flows."
REFERENCE "RFC 7455, Section 10.1.1"
::= { trillOamMepEntry 2 }
trillOamMepNextMtvmTId OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Next Sequence Number / Transaction Identifier to be sent
in a Multi-destination message. This Sequence Number can
be zero because it wraps around. An implementation should
be unique to identify Transaction Identifier for a MEP with
multiple flows."
REFERENCE "RFC 7455, Section 11.2.1"
::= { trillOamMepEntry 3 }
trillOamMepPtrIn OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Total number of valid, in-order Path Trace Replies
received."
REFERENCE "RFC 7455, Section 10"
::= { trillOamMepEntry 4 }
trillOamMepPtrInOutofOrder OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Total number of valid, out-of-order Path Trace Replies
received."
REFERENCE "RFC 7455, Section 10"
::= { trillOamMepEntry 5 }
Kumar, et al. Standards Track [Page 13]RFC 7784 TRILL OAM MIB February 2016
trillOamMepPtrOut OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Total number of valid, Path Trace Replies
transmitted."
REFERENCE "RFC 7455, Section 10"
::= { trillOamMepEntry 6 }
trillOamMepMtvrIn OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Total number of valid, in-order Multi-destination
Replies received."
REFERENCE "RFC 7455, Section 11"
::= { trillOamMepEntry 7 }
trillOamMepMtvrInOutofOrder OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Total number of valid, out-of-order Multi-destination
Replies received."
REFERENCE "RFC 7455, Section 11"
::= { trillOamMepEntry 8 }
trillOamMepMtvrOut OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Total number of valid, Multi-destination Replies
transmitted."
REFERENCE "RFC 7455, Section 11"
::= { trillOamMepEntry 9 }
trillOamMepTxLbmDestRName OBJECT-TYPE
SYNTAX Unsigned32 (0..65471)
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The Target Destination RBridge Nickname field, as
defined in RFC 6325, Section 3.7, to be transmitted."
REFERENCE "RFC 7455 and RFC 6325, Section 3.7"
Kumar, et al. Standards Track [Page 14]RFC 7784 TRILL OAM MIB February 2016
::= { trillOamMepEntry 10 }
trillOamMepTxLbmHC OBJECT-TYPE
SYNTAX Unsigned32(1..63)
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The Hop Count field to be transmitted."
REFERENCE "RFC 7455, Sections 3 and 9"
::= { trillOamMepEntry 11 }
trillOamMepTxLbmReplyModeOob OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"True indicates that the Reply to an LBM is out of
band and the out-of-band IP Address TLV is to be
transmitted. False indicates that in-band reply is
transmitted."
REFERENCE "RFC 7455, Section 9.2.1"
::= { trillOamMepEntry 12 }
trillOamMepTransmitLbmReplyIp OBJECT-TYPE
SYNTAX OCTET STRING (SIZE (4..16))
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The IP address for an out-of-band IP Address TLV
that is to be transmitted. Maximum length for IPv6
is 16 octets and IPv4 is 4 octets."
REFERENCE "RFC 7455, Section 3"
::= { trillOamMepEntry 13 }
trillOamMepTxLbmFlowEntropy OBJECT-TYPE
SYNTAX OCTET STRING (SIZE (96))
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"96-byte Flow Entropy, as defined in RFC 7455, to
be transmitted."
REFERENCE "RFC 7455, Section 3"
::= { trillOamMepEntry 14 }
trillOamMepTxPtmDestRName OBJECT-TYPE
SYNTAX Unsigned32 (0..65471)
MAX-ACCESS read-create
STATUS current
Kumar, et al. Standards Track [Page 15]RFC 7784 TRILL OAM MIB February 2016
DESCRIPTION
"The Target Destination RBridge Nickname field,
as defined in RFC 6325, Section 3.7, to be transmitted."
REFERENCE "RFC 7455 and RFC 6325, Section 3.7"
::= { trillOamMepEntry 15 }
trillOamMepTxPtmHC OBJECT-TYPE
SYNTAX Unsigned32 (1..63)
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The Hop Count field to be transmitted."
REFERENCE "RFC 7455, Section 3"
::= { trillOamMepEntry 16 }
trillOamMepTxPtmReplyModeOob OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"True indicates that a Reply to a PTM will be
out of band and the out-of-band IP Address TLV
is to be transmitted. False indicates that an
in-band reply is transmitted."
REFERENCE "RFC 7455, Section 10"
DEFVAL { false }
::= { trillOamMepEntry 17 }
trillOamMepTransmitPtmReplyIp OBJECT-TYPE
SYNTAX OCTET STRING (SIZE (4..16))
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The IP address for an out-of-band IP Address TLV
to be transmitted. The maximum length for an
IPv6 address is 16 octets. The maximum length
for an IPv4 address is 4 octets."
REFERENCE "RFC 7455, Sections 3 and 10"
::= { trillOamMepEntry 18 }
trillOamMepTxPtmFlowEntropy OBJECT-TYPE
SYNTAX OCTET STRING (SIZE (96))
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"96-byte Flow Entropy, as defined in RFC 7455, to be
transmitted."
REFERENCE "RFC 7455, Section 3"
Kumar, et al. Standards Track [Page 16]RFC 7784 TRILL OAM MIB February 2016
::= { trillOamMepEntry 19 }
trillOamMepTxPtmStatus OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"A Boolean flag set to TRUE by the MEP Path Trace Initiator
State Machine or a MIB manager to indicate that another PTM
is being transmitted. This is reset to FALSE by the MEP
Initiator State Machine. The PTM managed objects in the MEP
table are used in a manner similar to that described for LBM
transmission in the dot1agCfmMepTable. As per RFC 7455,
Section 10, operation of the Path Trace Message is identical
to the Loopback message except that it is first transmitted
with a TRILL Header Hop Count field value of 1 and then
retransmitted with an incrementing Hop Count until a
response is received from the destination RBridge, or the
Hop Count reaches a configured maximum value. The
trillOamMepTxPtmStatus status is reset to FALSE by
the initiator when the last PTM is transmitted."
REFERENCE "RFC 7455, Section 10"
DEFVAL { false }
::= { trillOamMepEntry 20 }
trillOamMepTxPtmResultOK OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Indicates the following results of the operation:
- true indicates the Path Trace Message(s) will be
(or has been) sent.
- false indicates the Path Trace Message(s) will not
be sent."
REFERENCE "RFC 7455, Section 10"
DEFVAL { true }
::= { trillOamMepEntry 21 }
trillOamMepTxPtmSeqNumber OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The Path Trace Transaction Identifier of the first
PTM (to be) sent. The value returned is
undefined if trillOamMepTxPtmResultOK is false."
REFERENCE "RFC 7455, Section 10"
Kumar, et al. Standards Track [Page 17]RFC 7784 TRILL OAM MIB February 2016
::= { trillOamMepEntry 22 }
trillOamMepTxPtmMessages OBJECT-TYPE
SYNTAX Integer32 (1..1024)
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The number of Path Trace messages to be transmitted.
As per RFC 7455, Section 10, the first Path Trace
Message is transmitted with a Hop Count of 1; an
RBridge may continue to retransmit the request at
periodic intervals with an incrementing Hop Count
until a response is received from the destination
RBridge or the Hop Count reaches a configured
maximum value. The event of the Destination
response being received or the Hop Count reaching
its maximum is treated as a single Counter
increment of this object."
REFERENCE "RFC 7455, Section 10"
::= { trillOamMepEntry 23 }
trillOamMepTxMtvmTree OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The Multi-destination Tree identifier, as
defined in RFC 6325, for an MTVM."
::= { trillOamMepEntry 24 }
trillOamMepTxMtvmHC OBJECT-TYPE
SYNTAX Unsigned32(1..63)
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The Hop Count field to be transmitted.
"
REFERENCE "RFC 7455, Section 3, and RFC 6325, Section 3"
::= { trillOamMepEntry 25 }
trillOamMepTxMtvmReplyModeOob OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"True indicates that the reply to an MTVM is out of
band and this out-of-band IP Address TLV is where the
reply is to be transmitted.
Kumar, et al. Standards Track [Page 18]RFC 7784 TRILL OAM MIB February 2016
False indicates that an in-band reply is transmitted."
REFERENCE "RFC 7455, Section 11"
::= { trillOamMepEntry 26 }
trillOamMepTransmitMtvmReplyIp OBJECT-TYPE
SYNTAX OCTET STRING (SIZE (4..16))
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"IP address for an out-of-band IP Address TLV that is
to be transmitted. The maximum length for IPv6 is 16
octets and IPv4 is 4 octets."
REFERENCE "RFC 7455, Section 11"
::= { trillOamMepEntry 27 }
trillOamMepTxMtvmFlowEntropy OBJECT-TYPE
SYNTAX OCTET STRING (SIZE (96))
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"96-byte Flow Entropy, as defined in RFC 7455, to be
transmitted."
REFERENCE "RFC 7455, Section 3"
::= { trillOamMepEntry 28 }
trillOamMepTxMtvmStatus OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"A Boolean flag set to TRUE by the MEP Multi-destination
Initiator State Machine or a MIB manager to indicate
that another MTVM is being transmitted.
Reset to FALSE by the MEP Initiator State Machine.
The MTVM-managed objects in the MEP table are used
in a manner similar to that described for LBM
transmission in the dot1agCfmMepTable. As per RFC 7455,
Section 11, operation of the MTVM is
identical to the Loopback message except that it is
first transmitted with a TRILL Header Hop Count
field value of 1 and it is retransmitted incrementing
the Hop Count until a response is received from the
destination RBridge or the Hop Count reaches a
configured maximum value. The trillOamMepTxMtvmStatus
Status is reset to FALSE by the initiator when the last
MTVM is transmitted."
REFERENCE "RFC 7455, Section 11"
DEFVAL { false }
Kumar, et al. Standards Track [Page 19]RFC 7784 TRILL OAM MIB February 2016
::= { trillOamMepEntry 29 }
trillOamMepTxMtvmResultOK OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Indicates the result of the operation in
the following way:
- true indicates the Multi-destination Message(s) will be
(or has been) sent.
- false indicates the Multi-destination Message(s) will not
be sent."
REFERENCE "RFC 7455, Section 11"
DEFVAL { true }
::= { trillOamMepEntry 30 }
trillOamMepTxMtvmMessages OBJECT-TYPE
SYNTAX Integer32 (1..1024)
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The number of Multi-destination messages to be transmitted.
The RBridge transmit the Multi-destination message
incrementing the session Identification Number at periodic
interval until this count expires."
REFERENCE "RFC 7455, Section 11"
::= { trillOamMepEntry 31 }
trillOamMepTxMtvmSeqNumber OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The Multi-destination Transaction Identifier of the
first MTVM (to be)
sent. The value returned is undefined if
trillOamMepTxMtvmResultOK is false."
REFERENCE "RFC 7455, Section 11"
::= { trillOamMepEntry 32 }
trillOamMepTxMtvmScopeList OBJECT-TYPE
SYNTAX OCTET STRING
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The Multi-destination RBridge Scope list, which
requires 2 octets per RBridge."
Kumar, et al. Standards Track [Page 20]RFC 7784 TRILL OAM MIB February 2016
REFERENCE "RFC 7455, Section 11"
::= { trillOamMepEntry 33 }
trillOamMepDiscontinuityTime OBJECT-TYPE
SYNTAX TimeStamp
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Snapshot of the value of the sysUpTime object at the
beginning of the latest period of continuity of the
statistical counters associated with this MEP."
::= { trillOamMepEntry 34 }
-- *****************************************************************
-- TRILL OAM Tx Measurement Configuration Table
-- *****************************************************************
trillOamMepFlowCfgTable OBJECT-TYPE
SYNTAX SEQUENCE OF TrillOamMepFlowCfgEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table includes configuration objects and operations
for the TRILL OAM facilities in RFC 7455.
Each row in the table represents a Flow Configuration
Entry for the defined MEP. This table uses four indices.
The first three indices are the indices of the Maintenance
Domain, MANET, and MEP tables. The fourth index is the
specific Flow Configuration Entry on the selected MEP.
Some writable objects in this table are only applicable in
certain cases (as described under each object), and
attempts to write values for them in other cases
will be ignored."
REFERENCE "RFC 7455"
::= { trillOamMep 2 }
trillOamMepFlowCfgEntry OBJECT-TYPE
SYNTAX TrillOamMepFlowCfgEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The conceptual row of trillOamMepFlowCfgTable."
INDEX {
dot1agCfmMdIndex,
dot1agCfmMaIndex,
dot1agCfmMepIdentifier,
Kumar, et al. Standards Track [Page 21]RFC 7784 TRILL OAM MIB February 2016
trillOamMepFlowCfgIndex
}
::= { trillOamMepFlowCfgTable 1 }
TrillOamMepFlowCfgEntry ::= SEQUENCE {
trillOamMepFlowCfgIndex Unsigned32,
trillOamMepFlowCfgFlowEntropy OCTET STRING,
trillOamMepFlowCfgDestRName Unsigned32,
trillOamMepFlowCfgFlowHC Unsigned32,
trillOamMepFlowCfgRowStatus RowStatus
}
trillOamMepFlowCfgIndex OBJECT-TYPE
SYNTAX Unsigned32 (1..65535)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An index to the TRILL OAM MEP Flow Configuration table,
which indicates the specific flow for the MEP.
The index is never reused for other flow sessions on the
same MEP while this session is active. The index value
keeps increasing until it wraps to 0. This value can also be
used in the flow-identifier TLV RFC 7455."
REFERENCE "RFC 7455"
::= { trillOamMepFlowCfgEntry 1 }
trillOamMepFlowCfgFlowEntropy OBJECT-TYPE
SYNTAX OCTET STRING (SIZE (96))
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This is 96 bytes of Flow Entropy as described in
TRILL OAM, RFC 7455."
REFERENCE "RFC 7455, Section 3"
::= { trillOamMepFlowCfgEntry 2 }
trillOamMepFlowCfgDestRName OBJECT-TYPE
SYNTAX Unsigned32 (0..65471)
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The Target Destination RBridge Nickname field, as
defined in RFC 6325, Section 3.7, to be transmitted."
REFERENCE "RFC 7455, Section 3, and RFC 6325, Section 3.7"
::= { trillOamMepFlowCfgEntry 3 }
Kumar, et al. Standards Track [Page 22]RFC 7784 TRILL OAM MIB February 2016
trillOamMepFlowCfgFlowHC OBJECT-TYPE
SYNTAX Unsigned32 (1..63)
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The Hop Count field to be transmitted."
REFERENCE "RFC 7455, Section 3, and RFC 6325, Section 3.6"
::= { trillOamMepFlowCfgEntry 4 }
trillOamMepFlowCfgRowStatus OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The status of the row.
The writable columns in a row cannot be changed if the row
is active. All columns MUST have a valid value before a row
can be activated."
::= { trillOamMepFlowCfgEntry 5 }
-- ******************************************************************
-- TRILL OAM Path Trace Reply Table
-- ******************************************************************
trillOamPtrTable OBJECT-TYPE
SYNTAX SEQUENCE OF TrillOamPtrEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table includes Path Trace Reply objects and
operations for the TRILL OAM facilities as described
in RFC 7455.
Each row in the table represents a Path Trace Reply Entry for
the defined MEP and Transaction. This table uses four
indices. The first three indices are the indices of the
Maintenance Domain,
MANET, and MEP tables. The fourth index is the specific
Transaction Identifier on the selected MEP.
Some writable objects in this table are only applicable in
certain cases (as described under each object),
and attempts to
write values for them in other cases will be ignored."
REFERENCE "RFC 7455"
::= { trillOamMep 3 }
Kumar, et al. Standards Track [Page 23]RFC 7784 TRILL OAM MIB February 2016
trillOamPtrEntry OBJECT-TYPE
SYNTAX TrillOamPtrEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The conceptual row of trillOamPtrTable."
INDEX {
dot1agCfmMdIndex,
dot1agCfmMaIndex,
dot1agCfmMepIdentifier,
trillOamMepPtrTransactionId
}
::= { trillOamPtrTable 1 }
TrillOamPtrEntry ::= SEQUENCE {
trillOamMepPtrTransactionId Unsigned32,
trillOamMepPtrHC Unsigned32,
trillOamMepPtrFlag Unsigned32,
trillOamMepPtrErrorCode Unsigned32,
trillOamMepPtrTerminalMep TruthValue,
trillOamMepPtrLastEgressId Unsigned32,
trillOamMepPtrIngress Dot1agCfmIngressActionFieldValue,
trillOamMepPtrIngressMac MacAddress,
trillOamMepPtrIngressPortIdSubtype LldpPortIdSubtype,
trillOamMepPtrIngressPortId LldpPortId,
trillOamMepPtrEgress Dot1agCfmEgressActionFieldValue,
trillOamMepPtrEgressMac MacAddress,
trillOamMepPtrEgressPortIdSubtype LldpPortIdSubtype,
trillOamMepPtrEgressPortId LldpPortId,
trillOamMepPtrChassisIdSubtype LldpChassisIdSubtype,
trillOamMepPtrChassisId LldpChassisId,
trillOamMepPtrOrganizationSpecificTlv OCTET STRING,
trillOamMepPtrNextHopNicknames OCTET STRING
}
trillOamMepPtrTransactionId OBJECT-TYPE
SYNTAX Unsigned32 (0..4294967295)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Sequence Number / Transaction Identifier returned by a
previous transmit path trace message command,
indicating which PTM's response is going to be returned."
REFERENCE "RFC 7455, Section 10"
::= { trillOamPtrEntry 1 }
Kumar, et al. Standards Track [Page 24]RFC 7784 TRILL OAM MIB February 2016
trillOamMepPtrHC OBJECT-TYPE
SYNTAX Unsigned32 (1..63)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Hop Count field value for a returned PTR."
REFERENCE "RFC 7455"
::= { trillOamPtrEntry 2 }
trillOamMepPtrFlag OBJECT-TYPE
SYNTAX Unsigned32 (0..15)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"FCOI (TRILL OAM Message TLV) field value for a
returned PTR."
REFERENCE "RFC 7455, Section 8.4.3"
::= { trillOamPtrEntry 3 }
trillOamMepPtrErrorCode OBJECT-TYPE
SYNTAX Unsigned32 (0..65535)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Return Code and Return Sub-code value for a returned PTR."
REFERENCE "RFC 7455, Section 8.4.3"
::= { trillOamPtrEntry 4 }
trillOamMepPtrTerminalMep OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A boolean value stating whether the forwarded PTM reached a
MEP enclosing its MA, as returned in the Terminal MEP flag of
the Flags field."
REFERENCE "RFC 7455"
::= { trillOamPtrEntry 5 }
trillOamMepPtrLastEgressId OBJECT-TYPE
SYNTAX Unsigned32 (0..65535)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"An Integer field holding the Last Egress Identifier returned
in the PTR Upstream RBridge Nickname TLV of the PTR.
The Last Egress Identifier identifies the Upstream Nickname."
REFERENCE "RFC 7455, Section 8.4.1"
Kumar, et al. Standards Track [Page 25]RFC 7784 TRILL OAM MIB February 2016
::= { trillOamPtrEntry 6 }
trillOamMepPtrIngress OBJECT-TYPE
SYNTAX Dot1agCfmIngressActionFieldValue
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The value returned in the Ingress Action field of the PTR.
The value ingNoTlv(0) indicates that no Reply Ingress TLV was
returned in the PTM."
REFERENCE "RFC 7455, Section 8.4.1"
::= { trillOamPtrEntry 7 }
trillOamMepPtrIngressMac OBJECT-TYPE
SYNTAX MacAddress
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"MAC address returned in the ingress MAC address field."
REFERENCE "RFC 7455, Section 8.4.1"
::= { trillOamPtrEntry 8 }
trillOamMepPtrIngressPortIdSubtype OBJECT-TYPE
SYNTAX LldpPortIdSubtype
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Ingress Port ID. The format of this object is determined by
the value of the trillOamMepPtrIngressPortIdSubtype object."
REFERENCE "RFC 7455, Section 8.4.1"
::= { trillOamPtrEntry 9 }
trillOamMepPtrIngressPortId OBJECT-TYPE
SYNTAX LldpPortId
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Ingress Port ID. The format of this object is determined by
the value of the trillOamMepPtrIngressPortId object."
REFERENCE "RFC 7455, Section 8.4.1"
::= { trillOamPtrEntry 10 }
trillOamMepPtrEgress OBJECT-TYPE
SYNTAX Dot1agCfmEgressActionFieldValue
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The value returned in the Egress Action field of the PTR.
Kumar, et al. Standards Track [Page 26]RFC 7784 TRILL OAM MIB February 2016
The value ingNoTlv(0) indicates that no Reply Egress TLV was
returned in the PTM."
REFERENCE "RFC 7455, Section 8.4.1"
::= { trillOamPtrEntry 11 }
trillOamMepPtrEgressMac OBJECT-TYPE
SYNTAX MacAddress
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"MAC address returned in the egress MAC address field."
REFERENCE "RFC 7455, Section 8.4.1"
::= { trillOamPtrEntry 12 }
trillOamMepPtrEgressPortIdSubtype OBJECT-TYPE
SYNTAX LldpPortIdSubtype
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Egress Port ID. The format of this object is determined by
the value of the trillOamMepPtrEgressPortIdSubtype object."
REFERENCE "RFC 7455, Section 8.4.1"
::= { trillOamPtrEntry 13 }
trillOamMepPtrEgressPortId OBJECT-TYPE
SYNTAX LldpPortId
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Egress Port ID. The format of this object is determined by
the value of the trillOamMepPtrEgressPortId object."
REFERENCE "RFC 7455, Section 8.4.1"
::= { trillOamPtrEntry 14 }
trillOamMepPtrChassisIdSubtype OBJECT-TYPE
SYNTAX LldpChassisIdSubtype
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object specifies the format of the Chassis ID returned
in the Sender ID TLV of the PTR, if any. This value is
meaningless if the trillOamMepPtrChassisId
has a length of 0."
REFERENCE "RFC 7455, Section 8.4.1"
::= { trillOamPtrEntry 15 }
Kumar, et al. Standards Track [Page 27]RFC 7784 TRILL OAM MIB February 2016
trillOamMepPtrChassisId OBJECT-TYPE
SYNTAX LldpChassisId
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The Chassis ID returned in the Sender ID TLV of the PTR, if
any. The format of this object is determined by the
value of the trillOamMepPtrChassisIdSubtype object."
REFERENCE "RFC 7455, Section 8.4.1"
::= { trillOamPtrEntry 16 }
trillOamMepPtrOrganizationSpecificTlv OBJECT-TYPE
SYNTAX OCTET STRING (SIZE (0 | 4..1500))
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"All organization-specific TLVs returned in the PTR, if
any. Includes all octets including and following the TLV
Length field of each TLV, concatenated together."
REFERENCE "RFC 7455, Section 8.4.1"
::= { trillOamPtrEntry 17 }
trillOamMepPtrNextHopNicknames OBJECT-TYPE
SYNTAX OCTET STRING (SIZE (0 | 4..1500))
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Next hop RBridge List TLV returned in the PTR, if
any. Includes all octets including and following the TLV
Length field of each TLV, concatenated together."
REFERENCE "RFC 7455, Section 8.4.1"
::= { trillOamPtrEntry 18 }
-- ******************************************************************
-- TRILL OAM Multi-destination Reply Table
-- ******************************************************************
trillOamMtvrTable OBJECT-TYPE
SYNTAX SEQUENCE OF TrillOamMtvrEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table includes Multi-destination Reply objects and
operations for the TRILL OAM facilities described in
RFC 7455.
Each row in the table represents a Multi-destination Reply
Entry for the defined MEP and Transaction. This table uses
Kumar, et al. Standards Track [Page 28]RFC 7784 TRILL OAM MIB February 2016
five indices. The first three indices are the indices of the
Maintenance Domain, MANET, and MEP tables. The fourth index
is the specific Transaction Identifier on the selected MEP.
The fifth index is the receive order of Multi-destination
replies.
Some writable objects in this table are only applicable in
certain cases (as described under each object), and attempts
to write values for them in other cases will be ignored."
REFERENCE "RFC 7455"
::= { trillOamMep 4 }
trillOamMtvrEntry OBJECT-TYPE
SYNTAX TrillOamMtvrEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The conceptual row of trillOamMtvrTable."
INDEX {
dot1agCfmMdIndex,
dot1agCfmMaIndex,
dot1agCfmMepIdentifier,
trillOamMepPtrTransactionId,
trillOamMepMtvrReceiveOrder
}
::= { trillOamMtvrTable 1 }
TrillOamMtvrEntry ::= SEQUENCE {
trillOamMepMtvrTransactionId Unsigned32,
trillOamMepMtvrReceiveOrder Unsigned32,
trillOamMepMtvrFlag Unsigned32,
trillOamMepMtvrErrorCode Unsigned32,
trillOamMepMtvrLastEgressId Unsigned32,
trillOamMepMtvrIngress Dot1agCfmIngressActionFieldValue,
trillOamMepMtvrIngressMac MacAddress,
trillOamMepMtvrIngressPortIdSubtype LldpPortIdSubtype,
trillOamMepMtvrIngressPortId LldpPortId,
trillOamMepMtvrEgress Dot1agCfmEgressActionFieldValue,
trillOamMepMtvrEgressMac MacAddress,
trillOamMepMtvrEgressPortIdSubtype LldpPortIdSubtype,
trillOamMepMtvrEgressPortId LldpPortId,
trillOamMepMtvrChassisIdSubtype LldpChassisIdSubtype,
trillOamMepMtvrChassisId LldpChassisId,
trillOamMepMtvrOrganizationSpecificTlv OCTET STRING,
trillOamMepMtvrNextHopNicknames OCTET STRING,
trillOamMepMtvrReceiverAvailability TruthValue,
trillOamMepMtvrReceiverCount TruthValue
}
Kumar, et al. Standards Track [Page 29]RFC 7784 TRILL OAM MIB February 2016
trillOamMepMtvrTransactionId OBJECT-TYPE
SYNTAX Unsigned32 (0..4294967295)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Sequence Number / Transaction Identifier returned by a
previously transmitted Multi-destination message command
indicating which MTVM's response is going to be returned."
REFERENCE "RFC 7455, Section 11"
::= { trillOamMtvrEntry 1 }
trillOamMepMtvrReceiveOrder OBJECT-TYPE
SYNTAX Unsigned32 (1..4294967295)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An index to distinguish among multiple MTVRs with same MTVR
Transaction Identifier field value.
trillOamMepMtvrReceiveOrder is assigned sequentially from 1,
in the order that the Multi-destination Tree Initiator
received the MTVRs."
REFERENCE "RFC 7455, Section 11"
::= { trillOamMtvrEntry 2 }
trillOamMepMtvrFlag OBJECT-TYPE
SYNTAX Unsigned32 (0..15)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"FCOI (TRILL OAM Message TLV) field value for a
returned MTVR."
REFERENCE "RFC 7455, Section 8.4.2"
::= { trillOamMtvrEntry 3 }
trillOamMepMtvrErrorCode OBJECT-TYPE
SYNTAX Unsigned32 (0..65535)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Return Code and Return Sub-code value for a returned MTVR."
REFERENCE "RFC 7455, Section 8.4.2"
::= { trillOamMtvrEntry 4 }
trillOamMepMtvrLastEgressId OBJECT-TYPE
SYNTAX Unsigned32 (0..65535)
MAX-ACCESS read-only
STATUS current
Kumar, et al. Standards Track [Page 30]RFC 7784 TRILL OAM MIB February 2016
DESCRIPTION
"An Integer field holding the Last Egress Identifier returned
in the MTVR Upstream RBridge Nickname TLV of the MTVR. The
Last Egress Identifier identifies the Upstream Nickname."
REFERENCE "RFC 7455, Section 8.4.1"
::= { trillOamMtvrEntry 5 }
trillOamMepMtvrIngress OBJECT-TYPE
SYNTAX Dot1agCfmIngressActionFieldValue
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The value returned in the Ingress Action field of
the MTVR. The value ingNoTlv(0) indicates that no
Reply Ingress TLV was returned in the MTVM."
REFERENCE "RFC 7455, Section 11.2.3"
::= { trillOamMtvrEntry 6 }
trillOamMepMtvrIngressMac OBJECT-TYPE
SYNTAX MacAddress
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"MAC address returned in the ingress MAC address field."
REFERENCE "RFC 7455, Section 8.4.1"
::= { trillOamMtvrEntry 7 }
trillOamMepMtvrIngressPortIdSubtype OBJECT-TYPE
SYNTAX LldpPortIdSubtype
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Ingress Port ID. The format of this object is
determined by the value of the
trillOamMepMtvrIngressPortIdSubtype object."
REFERENCE "RFC 7455, Section 8.4.1"
::= { trillOamMtvrEntry 8 }
trillOamMepMtvrIngressPortId OBJECT-TYPE
SYNTAX LldpPortId
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Ingress Port ID. The format of this object is determined by
the value of the trillOamMepMtvrIngressPortId object."
REFERENCE "RFC 7455, Section 8.4.1"
::= { trillOamMtvrEntry 9 }
Kumar, et al. Standards Track [Page 31]RFC 7784 TRILL OAM MIB February 2016
trillOamMepMtvrEgress OBJECT-TYPE
SYNTAX Dot1agCfmEgressActionFieldValue
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The value returned in the Egress Action field of the MTVR.
The value ingNoTlv(0) indicates that no Reply Egress TLV was
returned in the MTVR."
REFERENCE "RFC 7455, Section 8.4.1"
::= { trillOamMtvrEntry 10 }
trillOamMepMtvrEgressMac OBJECT-TYPE
SYNTAX MacAddress
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"MAC address returned in the egress MAC address field."
REFERENCE "RFC 7455, Section 8.4.1"
::= { trillOamMtvrEntry 11 }
trillOamMepMtvrEgressPortIdSubtype OBJECT-TYPE
SYNTAX LldpPortIdSubtype
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Egress Port ID. The format of this object is determined by
the value of the trillOamMepMtvrEgressPortIdSubtype object."
REFERENCE "RFC 7455, Section 8.4.1"
::= { trillOamMtvrEntry 12 }
trillOamMepMtvrEgressPortId OBJECT-TYPE
SYNTAX LldpPortId
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Egress Port ID. The format of this object is determined by
the value of the trillOamMepMtvrEgressPortId object."
REFERENCE "RFC 7455, Section 8.4.1"
::= { trillOamMtvrEntry 13 }
trillOamMepMtvrChassisIdSubtype OBJECT-TYPE
SYNTAX LldpChassisIdSubtype
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object specifies the format of the Chassis ID returned
in the Sender ID TLV of the MTVR, if any. This value is
meaningless if the trillOamMepMtvrChassisId has a
Kumar, et al. Standards Track [Page 32]RFC 7784 TRILL OAM MIB February 2016
length of 0."
REFERENCE "RFC 7455, Section 8.4.1"
::= { trillOamMtvrEntry 14 }
trillOamMepMtvrChassisId OBJECT-TYPE
SYNTAX LldpChassisId
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The Chassis ID returned in the Sender ID TLV of the MTVR, if
any. The format of this object is determined by the
value of the trillOamMepMtvrChassisIdSubtype object."
REFERENCE "RFC 7455, Section 8.4.1"
::= { trillOamMtvrEntry 15 }
trillOamMepMtvrOrganizationSpecificTlv OBJECT-TYPE
SYNTAX OCTET STRING (SIZE (0 | 4..1500))
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"All organization-specific TLVs returned in the MTVR, if
any. Includes all octets including and following the TLV
Length field of each TLV, concatenated together."
REFERENCE "RFC 7455, Section 8.4.1"
::= { trillOamMtvrEntry 16 }
trillOamMepMtvrNextHopNicknames OBJECT-TYPE
SYNTAX OCTET STRING (SIZE (0 | 4..1500))
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Next hop RBridge List TLV returned in the PTR, if
any. Includes all octets including and following the TLV
Length field of each TLV, concatenated together."
REFERENCE "RFC 7455, Section 8.4.3"
::= { trillOamMtvrEntry 17 }
trillOamMepMtvrReceiverAvailability OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A value of true indicates that the MTVR response contained
Multicast receiver availability TLV."
REFERENCE "RFC 7455, Section 8.4.10"
::= { trillOamMtvrEntry 18 }
Kumar, et al. Standards Track [Page 33]RFC 7784 TRILL OAM MIB February 2016
trillOamMepMtvrReceiverCount OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Indicates the number of multicast receivers available on
the responding RBridge on the VLAN specified by the
diagnostic VLAN."
REFERENCE "RFC 7455, Section 8.4.10"
::= { trillOamMtvrEntry 19 }
-- *****************************************************************
-- TRILL OAM MEP Database Table
-- *****************************************************************
trillOamMepDbTable OBJECT-TYPE
SYNTAX SEQUENCE OF TrillOamMepDbEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table is an extension of the dot1agCfmMepDbTable
and rows are automatically added to or deleted from
this table based upon row creation and destruction of the
dot1agCfmMepDbTable."
REFERENCE
"RFC 7455"
::= { trillOamMep 5 }
trillOamMepDbEntry OBJECT-TYPE
SYNTAX TrillOamMepDbEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The conceptual row of trillOamMepDbTable."
AUGMENTS {
dot1agCfmMepDbEntry
}
::= { trillOamMepDbTable 1 }
TrillOamMepDbEntry ::= SEQUENCE {
trillOamMepDbFlowIndex Unsigned32,
trillOamMepDbFlowEntropy OCTET STRING,
trillOamMepDbFlowState Dot1agCfmRemoteMepState,
trillOamMepDbFlowFailedOkTime TimeStamp,
trillOamMepDbRBridgeName Unsigned32,
trillOamMepDbLastGoodSeqNum Counter32
}
Kumar, et al. Standards Track [Page 34]RFC 7784 TRILL OAM MIB February 2016
trillOamMepDbFlowIndex OBJECT-TYPE
SYNTAX Unsigned32 (1..65535)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object identifies the flow. If the Flow Identifier TLV
is received, then the index received can also be used."
REFERENCE "RFC 7455"
::= {trillOamMepDbEntry 1 }
trillOamMepDbFlowEntropy OBJECT-TYPE
SYNTAX OCTET STRING (SIZE (96))
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"96 byte Flow Entropy."
REFERENCE "RFC 7455, Section 3"
::= {trillOamMepDbEntry 2 }
trillOamMepDbFlowState OBJECT-TYPE
SYNTAX Dot1agCfmRemoteMepState
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The operational state of the remote MEP (flow-based)
IFF State machines. State Machine is running now per
flow."
REFERENCE "RFC 7455"
::= {trillOamMepDbEntry 3 }
trillOamMepDbFlowFailedOkTime OBJECT-TYPE
SYNTAX TimeStamp
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The Time (sysUpTime) at which the Remote MEP flow state
machine last entered either the RMEP_FAILED or RMEP_OK
state."
REFERENCE "RFC 7455"
::= {trillOamMepDbEntry 4 }
trillOamMepDbRBridgeName OBJECT-TYPE
SYNTAX Unsigned32(0..65471)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Remote MEP RBridge Nickname."
REFERENCE "RFC 7455 and RFC 6325, Section 3"
Kumar, et al. Standards Track [Page 35]RFC 7784 TRILL OAM MIB February 2016
::= {trillOamMepDbEntry 5 }
trillOamMepDbLastGoodSeqNum OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Last Sequence Number received."
REFERENCE "RFC 7455, Section 13.1"
::= {trillOamMepDbEntry 6}
-- ******************************************************************
-- TRILL OAM MIB NOTIFICATIONS (TRAPS)
-- This notification is sent to management entity whenever a
-- MEP loses/restores
-- contact with its peer flow MEPs
-- ******************************************************************
trillOamFaultAlarm NOTIFICATION-TYPE
OBJECTS { trillOamMepDbFlowState }
STATUS current
DESCRIPTION
"A MEP flow has a persistent defect condition.
A notification (fault alarm) is sent to the management
entity with the OID of the flow that has detected the fault.
The management entity receiving the notification can identify
the system from the network source address of the
notification and can identify the flow reporting the defect
by the indices in the OID of the trillOamMepFlowIndex and
trillOamFlowDefect variable in the notification:
dot1agCfmMdIndex - Also the index of the MEP's
Maintenance Domain table entry
(dot1agCfmMdTable).
dot1agCfmMaIndex - Also an index (with the MD table index)
of the MEP's Maintenance Association
network table entry
(dot1agCfmMaNetTable) and (with the MD
table index and component ID) of the
MEP's MA component table entry
(dot1agCfmMaCompTable).
dot1agCfmMepIdentifier - MEP Identifier and final index
into the MEP table (dot1agCfmMepTable).
trillOamMepFlowCfgIndex - Index identifies
indicates the specific flow for
the MEP"
REFERENCE "RFC 7455"
::= { trillOamNotifications 1 }
Kumar, et al. Standards Track [Page 36]RFC 7784 TRILL OAM MIB February 2016
-- ******************************************************************
-- TRILL OAM MIB Module - Conformance Information
-- ******************************************************************
trillOamMibCompliances OBJECT IDENTIFIER
::= { trillOamMibConformance 1 }
trillOamMibGroups OBJECT IDENTIFIER
::= { trillOamMibConformance 2 }
-- ******************************************************************
-- TRILL OAM MIB Units of Conformance
-- ******************************************************************
trillOamMepMandatoryGroup OBJECT-GROUP
OBJECTS {
trillOamMepRName,
trillOamMepNextPtmTId,
trillOamMepNextMtvmTId,
trillOamMepPtrIn,
trillOamMepPtrInOutofOrder,
trillOamMepPtrOut,
trillOamMepMtvrIn,
trillOamMepMtvrInOutofOrder,
trillOamMepMtvrOut,
trillOamMepTxLbmDestRName,
trillOamMepTxLbmHC,
trillOamMepTxLbmReplyModeOob,
trillOamMepTransmitLbmReplyIp,
trillOamMepTxLbmFlowEntropy,
trillOamMepTxPtmDestRName,
trillOamMepTxPtmHC,
trillOamMepTxPtmReplyModeOob,
trillOamMepTransmitPtmReplyIp,
trillOamMepTxPtmFlowEntropy,
trillOamMepTxPtmStatus,
trillOamMepTxPtmResultOK,
trillOamMepTxPtmMessages,
trillOamMepTxPtmSeqNumber,
trillOamMepTxMtvmTree,
trillOamMepTxMtvmHC,
trillOamMepTxMtvmReplyModeOob,
trillOamMepTransmitMtvmReplyIp,
trillOamMepTxMtvmFlowEntropy,
trillOamMepTxMtvmStatus,
trillOamMepTxMtvmResultOK,
trillOamMepTxMtvmMessages,
trillOamMepTxMtvmSeqNumber,
Kumar, et al. Standards Track [Page 37]RFC 7784 TRILL OAM MIB February 2016
trillOamMepTxMtvmScopeList,
trillOamMepDiscontinuityTime
}
STATUS current
DESCRIPTION
"Mandatory objects for the TRILL OAM MEP group."
::= { trillOamMibGroups 1 }
trillOamMepFlowCfgTableGroup OBJECT-GROUP
OBJECTS {
trillOamMepFlowCfgFlowEntropy,
trillOamMepFlowCfgDestRName,
trillOamMepFlowCfgFlowHC,
trillOamMepFlowCfgRowStatus
}
STATUS current
DESCRIPTION
"TRILL OAM MEP Flow Configuration objects group."
::= { trillOamMibGroups 2 }
trillOamPtrTableGroup OBJECT-GROUP
OBJECTS {
trillOamMepPtrHC,
trillOamMepPtrFlag,
trillOamMepPtrErrorCode,
trillOamMepPtrTerminalMep,
trillOamMepPtrLastEgressId,
trillOamMepPtrIngress,
trillOamMepPtrIngressMac,
trillOamMepPtrIngressPortIdSubtype,
trillOamMepPtrIngressPortId,
trillOamMepPtrEgress,
trillOamMepPtrEgressMac,
trillOamMepPtrEgressPortIdSubtype,
trillOamMepPtrEgressPortId,
trillOamMepPtrChassisIdSubtype,
trillOamMepPtrChassisId,
trillOamMepPtrOrganizationSpecificTlv,
trillOamMepPtrNextHopNicknames
}
STATUS current
DESCRIPTION
"TRILL OAM MEP PTR objects group."
::= { trillOamMibGroups 3 }
Kumar, et al. Standards Track [Page 38]RFC 7784 TRILL OAM MIB February 2016
trillOamMtvrTableGroup OBJECT-GROUP
OBJECTS {
trillOamMepMtvrFlag,
trillOamMepMtvrErrorCode,
trillOamMepMtvrLastEgressId,
trillOamMepMtvrIngress,
trillOamMepMtvrIngressMac,
trillOamMepMtvrIngressPortIdSubtype,
trillOamMepMtvrIngressPortId,
trillOamMepMtvrEgress,
trillOamMepMtvrEgressMac,
trillOamMepMtvrEgressPortIdSubtype,
trillOamMepMtvrEgressPortId,
trillOamMepMtvrChassisIdSubtype,
trillOamMepMtvrChassisId,
trillOamMepMtvrOrganizationSpecificTlv,
trillOamMepMtvrNextHopNicknames,
trillOamMepMtvrReceiverAvailability,
trillOamMepMtvrReceiverCount
}
STATUS current
DESCRIPTION
"TRILL OAM MEP MTVR objects group."
::= { trillOamMibGroups 4 }
trillOamMepDbGroup OBJECT-GROUP
OBJECTS {
trillOamMepDbFlowIndex,
trillOamMepDbFlowEntropy,
trillOamMepDbFlowState,
trillOamMepDbFlowFailedOkTime,
trillOamMepDbRBridgeName,
trillOamMepDbLastGoodSeqNum
}
STATUS current
DESCRIPTION
"TRILL OAM MEP DB objects group."
::= { trillOamMibGroups 5 }
trillOamNotificationGroup NOTIFICATION-GROUP
NOTIFICATIONS { trillOamFaultAlarm }
STATUS current
DESCRIPTION
"A collection of objects describing notifications(traps)."
::= { trillOamMibGroups 6 }
Kumar, et al. Standards Track [Page 39]RFC 7784 TRILL OAM MIB February 2016
-- ******************************************************************
-- TRILL OAM MIB Module Compliance Statements
-- ******************************************************************
trillOamMibCompliance MODULE-COMPLIANCE
STATUS current
DESCRIPTION
"The compliance statement for the TRILL OAM MIB."
MODULE -- this module
MANDATORY-GROUPS {
trillOamMepMandatoryGroup,
trillOamMepFlowCfgTableGroup,
trillOamPtrTableGroup,
trillOamMtvrTableGroup,
trillOamMepDbGroup,
trillOamNotificationGroup
}
::= { trillOamMibCompliances 1 }
-- Compliance requirement for read-only implementation.
trillOamMibReadOnlyCompliance MODULE-COMPLIANCE
STATUS current
DESCRIPTION
"Compliance requirement for implementations that only
provide read-only support for TRILL-OAM-MIB.
Such devices can be monitored but cannot be configured
using this MIB module."
MODULE -- this module
MANDATORY-GROUPS {
trillOamMepMandatoryGroup,
trillOamMepFlowCfgTableGroup,
trillOamPtrTableGroup,
trillOamMtvrTableGroup,
trillOamMepDbGroup,
trillOamNotificationGroup
}
-- trillOamMepTable
OBJECT trillOamMepTxLbmDestRName
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT trillOamMepTxLbmHC
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
Kumar, et al. Standards Track [Page 40]RFC 7784 TRILL OAM MIB February 2016
OBJECT trillOamMepTxLbmReplyModeOob
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT trillOamMepTransmitLbmReplyIp
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT trillOamMepTxLbmFlowEntropy
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT trillOamMepTxPtmDestRName
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT trillOamMepTxPtmHC
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT trillOamMepTxPtmReplyModeOob
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT trillOamMepTransmitPtmReplyIp
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT trillOamMepTxPtmFlowEntropy
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT trillOamMepTxPtmStatus
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
Kumar, et al. Standards Track [Page 41]RFC 7784 TRILL OAM MIB February 2016
OBJECT trillOamMepTxPtmResultOK
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT trillOamMepTxPtmMessages
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT trillOamMepTxPtmSeqNumber
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT trillOamMepTxMtvmTree
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT trillOamMepTxMtvmHC
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT trillOamMepTxMtvmReplyModeOob
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT trillOamMepTransmitMtvmReplyIp
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT trillOamMepTxMtvmFlowEntropy
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT trillOamMepTxMtvmStatus
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
Kumar, et al. Standards Track [Page 42]RFC 7784 TRILL OAM MIB February 2016
OBJECT trillOamMepTxMtvmResultOK
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT trillOamMepTxMtvmMessages
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT trillOamMepTxMtvmSeqNumber
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT trillOamMepTxMtvmScopeList
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
-- trillOamMepFlowCfgTable
OBJECT trillOamMepFlowCfgFlowEntropy
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT trillOamMepFlowCfgDestRName
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT trillOamMepFlowCfgFlowHC
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT trillOamMepFlowCfgRowStatus
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
::= { trillOamMibCompliances 2 }
END
Kumar, et al. Standards Track [Page 43]RFC 7784 TRILL OAM MIB February 2016
8. Security Considerations
This MIB relates to a system that will provide network connectivity
and packet-forwarding services. As such, improper manipulation of
the objects represented by this MIB may result in denial of service
to a large number of end users.
There are a number of management objects defined in this MIB module
with a MAX-ACCESS clause of read-create. Such objects may be
considered sensitive or vulnerable in some network environments. The
support for SET operations in a non-secure environment without proper
protection opens devices to attack. There are the tables and objects
and their sensitivity/vulnerability:
The following table and objects in the TRILL OAM MIB can be
manipulated to interfere with the operation of RBridges by causing
CPU use spikes:
o trillOamMepTransmitLbmReplyIp allows the reply from a Loopback
message to be transmitted to an IP address in the TLV, thus
allowing replies to be sent to any system to cause denial of
service.
o trillOamMepTransmitPtmReplyIp allows the reply from a Path Trace
message to be transmitted to an IP address in the TLV, thus
allowing replies to be sent to any system to cause denial of
service.
o trillOamMepTxPtmMessages allows the generation of PTMs and can be
used to generate lots of CPU-driven traffic.
o trillOamMepTransmitMtvmReplyIp allows a from reply from an MTVM to
be transmitted to an IP address in the TLV, thus allowing replies
to be sent to any system to cause denial of service.
o trillOamMepTxMtvmMessages allows the generation of MTVMs and can
be used to generate lots of CPU-driven traffic.
The following objects in the TRILL OAM MIB are read-create and can be
manipulated to interfere with the OAM operations of RBridges. If the
number of OAM frames generated in the network is high, this can cause
a CPU spike on destination RBridges if control-plane policing is not
properly implemented or configured on destination RBridges.
o trillOamMepTxLbmHC is used to set the Maximum Hop Count for the
LBM. As OAM frames don't leak out of the TRILL network, it has no
side effects.
Kumar, et al. Standards Track [Page 44]RFC 7784 TRILL OAM MIB February 2016
o trillOamMepTxLbmReplyModeOob is used to indicate whether the reply
is in or out of band. This object's vulnerability is covered as
part of trillOamMepTransmitLbmReplyIp.
o trillOamMepTxLbmFlowEntropy is used to indicate the customer flow
and find the exact path in the network. The creation of valid
flows is its intended purpose. If invalid flows are created on
vulnerable system, they will be dropped in forwarding.
o trillOamMepTxLbmDestRName is read-create, but it's not vulnerable
as invalid-name routes won't be present and will be rejected by
the OAM application as part of normal processing.
o trillOamMepTxPtmHC is used to set the Maximum Hop Count for the
PTM. As OAM frames don't leak out of the TRILL network, it has no
side effect.
o trillOamMepTxPtmReplyModeOob is used to indicate whether the reply
is in or out of band. This object's vulnerability is covered as
part of trillOamMepTransmitPtmReplyIp.
o trillOamMepTxPtmFlowEntropy is used to indicate the customer flow
and find the exact path in the network. Creation of valid flows
is its intended purpose. If invalid flows are created on
vulnerable systems, they will be dropped in forwarding.
o trillOamMepTxPtmDestRName is read-create, but it's not vulnerable
as invalid-name routes won't be present and will be rejected by
the OAM application as part of normal processing.
o trillOamMepTxPtmStatus is required for normal PTM operation.
o trillOamMepTxPtmResultOK is required for normal PTM operation.
o trillOamMepTxPtmSeqNumber is required for normal PTM operation.
o trillOamMepTxPtmMessages is required for normal PTM operation.
o trillOamMepTxMtvmTree is required for normal MTVM operation.
o trillOamMepTxMtvmHC is used to set the Maximum Hop Count for the
MTVM. As OAM frames don't leak out of the TRILL network, it has
no side effect
o trillOamMepTxMtvmReplyModeOob is used to indicate whether the
reply is in or out of band. This object's vulnerability is
covered as part of trillOamMepTransmitMtmReplyIp
Kumar, et al. Standards Track [Page 45]RFC 7784 TRILL OAM MIB February 2016
o trillOamMepTxMtvmFlowEntropy is used to indicate the customer flow
and find the exact path in the network. Creation of valid flows
is its intended purpose. If invalid flows are created on
vulnerable systems, they will be dropped in forwarding.
o trillOamMepTxMtvmStatus is required for normal MTVM operation.
o trillOamMepTxMtvmResultOK, trillOamMepTxMtvmMessages,
trillOamMepTxMtvmSeqNumber, and trillOamMepTxMtvmScopeList are
required for normal MTVM operation.
trillOamMepTransmitLbmReplyIp, trillOamMepTransmitPtmReplyIp, and
trillOamMepTransmitMtvmReplyIp allow setting of the IP address to
which reports are sent; thus, it can be used for denial of service
for that IP.
Some of the readable objects in this MIB module (i.e., objects with a
MAX-ACCESS other than not-accessible) may be considered sensitive or
vulnerable in some network environments. It is thus important to
control even GET and/or NOTIFY access to these objects and possibly
to even encrypt the values of these objects when sending them over
the network via SNMP. For example, Path Trace messages expose the
unicast topology of the network and Multi-destination Tree
Verification Messages expose the multicast tree topology of the
network. This information should not be available to all users of
the network.
SNMP versions prior to SNMPv3 did not include adequate security.
Even if the network itself is secure (for example by using IPsec),
there is no control as to who on the secure network is allowed to
access and GET/SET (read/change/create/delete) the objects in this
MIB module.
Implementation should provide the security features described by the
SNMPv3 framework (see [RFC3410]), and implementations claiming
compliance to the SNMPv3 standard MUST include full support for
authentication and privacy via the User-based Security Model (USM)
[RFC3414] with the AES cipher algorithm [RFC3826]. Implementations
MAY also provide support for the Transport Security Model (TSM)
[RFC5591] in combination with a secure transport such as SSH
[RFC5592] or TLS/DTLS [RFC6353].
Further, deployment of SNMP versions prior to SNMPv3 is NOT
RECOMMENDED. Instead, it is RECOMMENDED to deploy SNMPv3 and to
enable cryptographic security. It is then a customer/operator
responsibility to ensure that the SNMP entity giving access to an
instance of this MIB module is properly configured to give only those
Kumar, et al. Standards Track [Page 46]RFC 7784 TRILL OAM MIB February 2016
principals (users) that have legitimate rights to indeed GET or SET
(change/create/delete) them.
9. IANA Considerations
The MIB module in this document uses the following IANA-assigned
OBJECT IDENTIFIER value recorded in the SMI Numbers registry:
Descriptor OBJECT IDENTIFIER value
----------------------------------------
trillOamMIB { mib-2 238 }
10. References
10.1. Normative References
[802.1Q] IEEE, "IEEE Standard for Local and metropolitan area
networks -- Media Access Control (MAC) Bridges and
Virtual Bridge Local Area Networks", IEEE Std
802.1Q-2011, DOI 10.1109/IEEESTD.2011.6009146.
[IEEE8021-CFM-MIB]
IEEE, "Connectivity Fault Management module for managing
IEEE 802.1ag", IEEE 802.1ag, October 2008,
<http://www.ieee802.org/1/files/public/MIBs/IEEE8021-CFM-
MIB-200810150000Z.txt>.
[LLDP-MIB] IEEE, "Management Information Base module for LLDP
configuration, statistics, local system data and remote
systems data components", IEEE 802.1AB, May 2005,
<http://www.ieee802.org/1/files/public/MIBs/
LLDP-MIB-200505060000Z.txt>.
[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate
Requirement
Levels", BCP 14, RFC 2119, DOI 10.17487/RFC2119, March
1997, <http://www.rfc-editor.org/info/rfc2119>.
[RFC2578] McCloghrie, K., Ed., Perkins, D., Ed., and J.
Schoenwaelder, Ed., "Structure of Management Information
Version 2 (SMIv2)", STD 58, RFC 2578,
DOI 10.17487/RFC2578, April 1999,
<http://www.rfc-editor.org/info/rfc2578>.
[RFC2579] McCloghrie, K., Ed., Perkins, D., Ed., and J.
Schoenwaelder, Ed., "Textual Conventions for SMIv2", STD
58, RFC 2579, DOI 10.17487/RFC2579, April 1999,
<http://www.rfc-editor.org/info/rfc2579>.
Kumar, et al. Standards Track [Page 47]RFC 7784 TRILL OAM MIB February 2016
[RFC2580] McCloghrie, K., Ed., Perkins, D., Ed., and J.
Schoenwaelder, Ed., "Conformance Statements for SMIv2",
STD 58, RFC 2580, DOI 10.17487/RFC2580, April 1999,
<http://www.rfc-editor.org/info/rfc2580>.
[RFC3414] Blumenthal, U. and B. Wijnen, "User-based Security Model
(USM) for version 3 of the Simple Network Management
Protocol (SNMPv3)", STD 62, RFC 3414,
DOI 10.17487/RFC3414, December 2002,
<http://www.rfc-editor.org/info/rfc3414>.
[RFC3826] Blumenthal, U., Maino, F., and K. McCloghrie, "The
Advanced Encryption Standard (AES) Cipher Algorithm in
the SNMP User-based Security Model", RFC 3826,
DOI 10.17487/RFC3826, June 2004,
<http://www.rfc-editor.org/info/rfc3826>.
[RFC5591] Harrington, D. and W. Hardaker, "Transport Security Model
for the Simple Network Management Protocol (SNMP)",
STD 78, RFC 5591, DOI 10.17487/RFC5591, June 2009,
<http://www.rfc-editor.org/info/rfc5591>.
[RFC5592] Harrington, D., Salowey, J., and W. Hardaker, "Secure
Shell Transport Model for the Simple Network Management
Protocol (SNMP)", RFC 5592, DOI 10.17487/RFC5592, June
2009, <http://www.rfc-editor.org/info/rfc5592>.
[RFC6325] Perlman, R., Eastlake 3rd, D., Dutt, D., Gai, S., and A.
Ghanwani, "Routing Bridges (RBridges): Base Protocol
Specification", RFC 6325, DOI 10.17487/RFC6325, July
2011, <http://www.rfc-editor.org/info/rfc6325>.
[RFC6353] Hardaker, W., "Transport Layer Security (TLS) Transport
Model for the Simple Network Management Protocol (SNMP)",
STD 78, RFC 6353, DOI 10.17487/RFC6353, July 2011,
<http://www.rfc-editor.org/info/rfc6353>.
[RFC7172] Eastlake 3rd, D., Zhang, M., Agarwal, P., Perlman, R.,
and D. Dutt, "Transparent Interconnection of Lots of
Links (TRILL): Fine-Grained Labeling", RFC 7172,
DOI 10.17487/RFC7172, May 2014,
<http://www.rfc-editor.org/info/rfc7172>.
[RFC7455] Senevirathne, T., Finn, N., Salam, S., Kumar, D.,
Eastlake 3rd, D., Aldrin, S., and Y. Li, "Transparent
Interconnection of Lots of Links (TRILL): Fault
Management", RFC 7455, DOI 10.17487/RFC7455, March 2015,
<http://www.rfc-editor.org/info/rfc7455>.
Kumar, et al. Standards Track [Page 48]RFC 7784 TRILL OAM MIB February 2016
10.2. Informative References
[Q.840.1] ITU-T, "Requirements and analysis for NMS-EMS management
interface of Ethernet over Transport and Metro Ethernet
Network (EoT/MEN)", Recommendation Q.840.1, March 2007.
[RFC3410] Case, J., Mundy, R., Partain, D., and B. Stewart,
"Introduction and Applicability Statements for Internet-
Standard Management Framework", RFC 3410,
DOI 10.17487/RFC3410, December 2002,
<http://www.rfc-editor.org/info/rfc3410>.
[RFC6905] Senevirathne, T., Bond, D., Aldrin, S., Li, Y., and R.
Watve, "Requirements for Operations, Administration, and
Maintenance (OAM) in Transparent Interconnection of Lots
of Links (TRILL)", RFC 6905, DOI 10.17487/RFC6905, March
2013, <http://www.rfc-editor.org/info/rfc6905>.
[RFC7174] Salam, S., Senevirathne, T., Aldrin, S., and D. Eastlake
3rd, "Transparent Interconnection of Lots of Links
(TRILL) Operations, Administration, and Maintenance (OAM)
Framework", RFC 7174, DOI 10.17487/RFC7174, May 2014,
<http://www.rfc-editor.org/info/rfc7174>.
Kumar, et al. Standards Track [Page 49]RFC 7784 TRILL OAM MIB February 2016
Acknowledgments
We wish to thank members of the IETF TRILL WG and the MIB Doctors for
their comments and suggestions. Detailed comments were provided by
Sam Aldrin, Donald Eastlake, Tom Taylor, and Harrie Hazewinkel.
Authors' Addresses
Deepak Kumar
Cisco
510 McCarthy Blvd.
Milpitas, CA 95035
United States
Phone : +1 408-853-9760
Email: dekumar@cisco.com
Samer Salam
Cisco
595 Burrard St.
Suite 2123
Vancouver, BC V7X 1J1
Canada
Email: ssalam@cisco.com
Tissa Senevirathne
Consultant
Email: tsenevir@gmail.com
Kumar, et al. Standards Track [Page 50]
