| Network Working Group | T. Nadeau |
| Internet-Draft | Juniper Networks |
| Intended status: Standards Track | Z. Ali |
| Expires: December 28, 2013 | N. Akiya |
| Cisco Systems | |
| June 26, 2013 |
BFD Management Information Base
draft-ietf-bfd-mib-14
This draft defines a portion of the Management Information Base (MIB) for use with network management protocols in the Internet community. In particular, it describes managed objects for modeling Bidirectional Forwarding Detection (BFD) protocol.
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this document are to be interpreted as described in BCP 14, RFC 2119 [RFC2119].
This Internet-Draft is submitted in full conformance with the provisions of BCP 78 and BCP 79.
Internet-Drafts are working documents of the Internet Engineering Task Force (IETF). Note that other groups may also distribute working documents as Internet-Drafts. The list of current Internet-Drafts is at http://datatracker.ietf.org/drafts/current/.
Internet-Drafts are draft documents valid for a maximum of six months and may be updated, replaced, or obsoleted by other documents at any time. It is inappropriate to use Internet-Drafts as reference material or to cite them other than as "work in progress."
This Internet-Draft will expire on December 28, 2013.
Copyright (c) 2013 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.
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].
This memo defines an portion of the Management Information Base (MIB) for use with network management protocols in the Internet community. In particular, it describes managed objects to configure and/or monitor Bi-Directional Forwarding Detection for [RFC5880], [RFC5881] and [RFC5883], BFD versions 0 and/or 1, on devices supporting this feature.
Comments should be made directly to the BFD mailing list at rtg-bfd@ietf.org.
This document adopts the definitions, acronyms and mechanisms described in [RFC5880], [RFC5881] and [RFC5883]. Unless otherwise stated, the mechanisms described therein will not be re-described here.
This section describes objects pertaining to BFD. The MIB objects are derived from [RFC5880], [RFC5881] and [RFC5883], and also include textual conventions defined in [I-D.ietf-bfd-tc-mib].
The General Variables are used to identify parameters that are global to the BFD process.
The session table is used to identify a BFD session between a pair of nodes.
The session performance table is used for collecting BFD performance counters on a per session basis. This table is an AUGMENT to the bfdSessionTable.
The BFD Session Discriminator Mapping Table maps a local discriminator value to associated BFD session's BfdSessIndexTC used in the bfdSessionTable.
The BFD Session IP Mapping Table maps, given bfdSessInterface, bfdSessSrcAddrType, bfdSessSrcAddr, bfdSessDstAddrType, and bfdSessDstAddr, to an associated BFD session's BfdSessIndexTC used in the bfdSessionTable. This table SHOULD contains those BFD sessions that are of IP type.
This MIB module makes references to the following documents. [RFC2579], [RFC2580], [RFC2863], [RFC4001], and [RFC3413].
BFD-STD-MIB DEFINITIONS ::= BEGIN
IMPORTS
MODULE-IDENTITY, OBJECT-TYPE, NOTIFICATION-TYPE,
mib-2, Integer32, Unsigned32, Counter32, Counter64
FROM SNMPv2-SMI
TruthValue, RowStatus, StorageType, TimeStamp
FROM SNMPv2-TC
MODULE-COMPLIANCE, OBJECT-GROUP, NOTIFICATION-GROUP
FROM SNMPv2-CONF
InterfaceIndexOrZero
FROM IF-MIB
InetAddress, InetAddressType, InetPortNumber
FROM INET-ADDRESS-MIB
BfdSessIndexTC, BfdIntervalTC, BfdMultiplierTC, BfdDiagTC,
BfdSessTypeTC, BfdSessOperModeTC, BfdCtrlDestPortNumberTC,
BfdCtrlSourcePortNumberTC, BfdSessStateTC,
BfdSessAuthenticationTypeTC, BfdSessionAuthenticationKeyTC
FROM BFD-TC-STD-MIB;
bfdMIB MODULE-IDENTITY
LAST-UPDATED "201306261200Z" -- 26 June 2013 12:00:00 EST
ORGANIZATION "IETF Bidirectional Forwarding Detection
Working Group"
CONTACT-INFO
"Thomas D. Nadeau
Juniper Networks
Email: tnadeau@lucidvision.com
Zafar Ali
Cisco Systems, Inc.
Email: zali@cisco.com
Nobo Akiya
Cisco Systems, Inc.
Email: nobo@cisco.com"
DESCRIPTION
"Bidirectional Forwarding Management Information Base."
REVISION "201306261200Z" -- 26 June 2013 12:00:00 EST
DESCRIPTION
"Initial version. Published as RFC xxxx."
-- RFC Ed.: RFC-editor pls fill in xxxx
::= { mib-2 XXX }
-- RFC Ed.: assigned by IANA, see section 7.1 for details
-- Top level components of this MIB module.
bfdNotifications OBJECT IDENTIFIER ::= { bfdMIB 0 }
bfdObjects OBJECT IDENTIFIER ::= { bfdMIB 1 }
bfdConformance OBJECT IDENTIFIER ::= { bfdMIB 2 }
bfdScalarObjects OBJECT IDENTIFIER ::= { bfdObjects 1 }
-- BFD General Variables
-- These parameters apply globally to the Systems'
-- BFD Process.
bfdAdminStatus OBJECT-TYPE
SYNTAX INTEGER {
enabled(1),
disabled(2)
}
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The global administrative status of BFD in this device.
The value 'enabled' denotes that the BFD Process is
active on at least one interface; 'disabled' disables
it on all interfaces."
DEFVAL { enabled }
::= { bfdScalarObjects 1 }
bfdSessNotificationsEnable OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"If this object is set to true(1), then it enables
the emission of bfdSessUp and bfdSessDown
notifications; otherwise these notifications are not
emitted."
REFERENCE
"See also RFC3413 for explanation that
notifications are under the ultimate control of the
MIB modules in this document."
DEFVAL { false }
::= { bfdScalarObjects 2 }
-- BFD Session Table
-- The BFD Session Table specifies BFD session specific
-- information.
bfdSessTable OBJECT-TYPE
SYNTAX SEQUENCE OF BfdSessEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The BFD Session Table describes the BFD sessions."
REFERENCE
"Katz, D. and D. Ward, Bidirectional Forwarding
Detection (BFD), RFC 5880, June 2012."
::= { bfdObjects 2 }
bfdSessEntry OBJECT-TYPE
SYNTAX BfdSessEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The BFD Session Entry describes BFD session."
INDEX { bfdSessIndex }
::= { bfdSessTable 1 }
BfdSessEntry ::= SEQUENCE {
bfdSessIndex BfdSessIndexTC,
bfdSessVersionNumber Unsigned32,
bfdSessType BfdSessTypeTC,
bfdSessDiscriminator Unsigned32,
bfdSessRemoteDiscr Unsigned32,
bfdSessDestinationUdpPort BfdCtrlDestPortNumberTC,
bfdSessSourceUdpPort BfdCtrlSourcePortNumberTC,
bfdSessEchoSourceUdpPort InetPortNumber,
bfdSessAdminStatus INTEGER,
bfdSessState BfdSessStateTC,
bfdSessRemoteHeardFlag TruthValue,
bfdSessDiag BfdDiagTC,
bfdSessOperMode BfdSessOperModeTC,
bfdSessDemandModeDesiredFlag TruthValue,
bfdSessControlPlaneIndepFlag TruthValue,
bfdSessMultipointFlag TruthValue,
bfdSessInterface InterfaceIndexOrZero,
bfdSessSrcAddrType InetAddressType,
bfdSessSrcAddr InetAddress,
bfdSessDstAddrType InetAddressType,
bfdSessDstAddr InetAddress,
bfdSessGTSM TruthValue,
bfdSessGTSMTTL Unsigned32,
bfdSessDesiredMinTxInterval BfdIntervalTC,
bfdSessReqMinRxInterval BfdIntervalTC,
bfdSessReqMinEchoRxInterval BfdIntervalTC,
bfdSessDetectMult BfdMultiplierTC,
bfdSessNegotiatedInterval BfdIntervalTC,
bfdSessNegotiatedEchoInterval BfdIntervalTC,
bfdSessNegotiatedDetectMult BfdMultiplierTC,
bfdSessAuthPresFlag TruthValue,
bfdSessAuthenticationType BfdSessAuthenticationTypeTC,
bfdSessAuthenticationKeyID Integer32,
bfdSessAuthenticationKey BfdSessionAuthenticationKeyTC,
bfdSessStorageType StorageType,
bfdSessRowStatus RowStatus
}
bfdSessIndex OBJECT-TYPE
SYNTAX BfdSessIndexTC
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This object contains an index used to represent a
unique BFD session on this device."
::= { bfdSessEntry 1 }
bfdSessVersionNumber OBJECT-TYPE
SYNTAX Unsigned32 (0..7)
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The version number of the BFD protocol that this session
is running in. Write access is available for this object
to provide ability to set desired version for this
BFD session."
REFERENCE
"Katz, D. and D. Ward, Bidirectional Forwarding
Detection (BFD), RFC 5880, June 2012."
DEFVAL { 1 }
::= { bfdSessEntry 2 }
bfdSessType OBJECT-TYPE
SYNTAX BfdSessTypeTC
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This object specifies the type of this BFD session."
::= { bfdSessEntry 3 }
bfdSessDiscriminator OBJECT-TYPE
SYNTAX Unsigned32 (1..4294967295)
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This object specifies the local discriminator for this BFD
session, used to uniquely identify it."
::= { bfdSessEntry 4 }
bfdSessRemoteDiscr OBJECT-TYPE
SYNTAX Unsigned32 (0 | 1..4294967295)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object specifies the session discriminator chosen
by the remote system for this BFD session. The value may
be zero(0) if the remote discriminator is not yet known
or if the session is in the down or adminDown(1) state."
REFERENCE
"Section 6.8.6, from Katz, D. and D. Ward, Bidirectional
Forwarding Detection (BFD), RFC 5880, June 2012."
::= { bfdSessEntry 5 }
bfdSessDestinationUdpPort OBJECT-TYPE
SYNTAX BfdCtrlDestPortNumberTC
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This object specifies the destination UDP port number
used for this BFD session's control packets. The value
may be zero(0) if the session is in adminDown(1) state."
DEFVAL { 0 }
::= { bfdSessEntry 6 }
bfdSessSourceUdpPort OBJECT-TYPE
SYNTAX BfdCtrlSourcePortNumberTC
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This object specifies the source UDP port number used
for this BFD session's control packets. The value may be
zero(0) if the session is in adminDown(1) state. Upon
creation of a new BFD session via this MIB, the value of
zero(0) specified would permit the implementation to
choose its own source port number."
DEFVAL { 0 }
::= { bfdSessEntry 7 }
bfdSessEchoSourceUdpPort OBJECT-TYPE
SYNTAX InetPortNumber
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This object specifies the source UDP port number used for
this BFD session's echo packets. The value may be zero(0)
if the session is not running in the echo mode, or the
session is in adminDown(1) state. Upon creation of a new
BFD session via this MIB, the value of zero(0) would
permit the implementation to choose its own source port
number."
DEFVAL { 0 }
::= { bfdSessEntry 8 }
bfdSessAdminStatus OBJECT-TYPE
SYNTAX INTEGER {
stop(1),
start(2)
}
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"A transition from 'stop' to 'start' will start
the BFD state machine for the session. The state
machine will have an initial state of down.
A transition from 'start' to 'stop' will cause
the BFD session to be brought down to
adminDown(1). Care should be used in providing
write access to this object without adequate
authentication."
DEFVAL { 2 }
::= { bfdSessEntry 9 }
bfdSessState OBJECT-TYPE
SYNTAX BfdSessStateTC
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"BFD session state."
DEFVAL { 2 }
::= { bfdSessEntry 10 }
bfdSessRemoteHeardFlag OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object specifies status of BFD packet reception from
the remote system. Specifically, it is set to true(1) if
the local system is actively receiving BFD packets from the
remote system, and is set to false(2) if the local system
has not received BFD packets recently (within the detection
time) or if the local system is attempting to tear down
the BFD session."
REFERENCE
"Katz, D. and D. Ward, Bidirectional
Forwarding Detection (BFD), RFC 5880, June 2012."
DEFVAL { false }
::= { bfdSessEntry 11 }
bfdSessDiag OBJECT-TYPE
SYNTAX BfdDiagTC
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A diagnostic code specifying the local system's reason
for the last transition of the session from up(4)
to some other state."
::= { bfdSessEntry 12 }
bfdSessOperMode OBJECT-TYPE
SYNTAX BfdSessOperModeTC
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This object specifies current operating mode that BFD
session is operating in."
::= { bfdSessEntry 13 }
bfdSessDemandModeDesiredFlag OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This object indicates that the local system's
desire to use Demand mode. Specifically, it is set
to true(1) if the local system wishes to use
Demand mode or false(2) if not"
DEFVAL { false }
::= { bfdSessEntry 14 }
bfdSessControlPlaneIndepFlag OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This object indicates that the local system's
ability to continue to function through a disruption of
the control plane. Specifically, it is set
to true(1) if the local system BFD implementation is
independent of the control plane. Otherwise, the
value is set to false(2)"
DEFVAL { false }
::= { bfdSessEntry 15 }
bfdSessMultipointFlag OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This object indicates the Multipoint (M) bit for this
session. It is set to true(1) if Multipoint (M) bit is
set to 1. Otherwise, the value is set to false(2)"
DEFVAL { false }
::= { bfdSessEntry 16 }
bfdSessInterface OBJECT-TYPE
SYNTAX InterfaceIndexOrZero
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This object contains an interface index used to indicate
the interface which this BFD session is running on. This
value can be zero if there is no interface associated
with this BFD session."
::= { bfdSessEntry 17 }
bfdSessSrcAddrType OBJECT-TYPE
SYNTAX InetAddressType
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This object specifies IP address type of the source IP
address of this BFD session. Only values unknown(0),
ipv4(1), ipv6(2), or ipv6z(4) have to be supported.
The value of unknown(0) is allowed only when the session
is singleHop(1) and the source IP address of this BFD
session is derived from the outgoing interface, or when
the BFD session is not associated with a specific
interface. If any other unsupported values are attempted
in a set operation, the agent MUST return an
inconsistentValue error."
::= { bfdSessEntry 18 }
bfdSessSrcAddr OBJECT-TYPE
SYNTAX InetAddress
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This object specifies the source IP address of this BFD
session."
::= { bfdSessEntry 19 }
bfdSessDstAddrType OBJECT-TYPE
SYNTAX InetAddressType
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This object specifies IP address type of the neighboring IP
address which is being monitored with this BFD session.
Only values unknown(0), ipv4(1), ipv6(2), or ipv6z(4)
have to be supported. The value of unknown(0) is allowed
only when the session is singleHop(1) and the outgoing
interface is of type point-to-point, or when the BFD
session is not associated with a specific interface. If any
other unsupported values are attempted in a set operation,
the agent MUST return an inconsistentValue error."
::= { bfdSessEntry 20 }
bfdSessDstAddr OBJECT-TYPE
SYNTAX InetAddress
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This object specifies the neighboring IP address which is
being monitored with this BFD session."
::= { bfdSessEntry 21 }
bfdSessGTSM OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Setting the value of this object to true(1) will enable GTSM
protection of the BFD session. GTSM MUST be enabled on a
singleHop(1) session if no authentication is in use."
REFERENCE
"RFC5082, The Generalized TTL Security Mechanism (GTSM).
RFC5881, Section 5"
DEFVAL { false }
::= { bfdSessEntry 22 }
bfdSessGTSMTTL OBJECT-TYPE
SYNTAX Unsigned32 (0..255)
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This object is valid only when bfdSessGTSM protection is
enabled on the system. This object specifies the minimum
allowed TTL for received BFD control packets. For
singleHop(1) session, if GTSM protection is enabled,
this object SHOULD be set to maximum TTL allowed for
single hop. The value of zero(0) indicates that
bfdSessGTSM is disabled."
REFERENCE
"RFC5082, The Generalized TTL Security Mechanism (GTSM).
RFC5881, Section 5"
DEFVAL { 0 }
::= { bfdSessEntry 23 }
bfdSessDesiredMinTxInterval OBJECT-TYPE
SYNTAX BfdIntervalTC
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This object specifies the minimum interval, in
microseconds, that the local system would like to use
when transmitting BFD Control packets. The value of
zero(0) is reserved, and should not be used."
REFERENCE
"Section 4.1 from Katz, D. and D. Ward, Bidirectional
Forwarding Detection (BFD), RFC 5880, June 2012."
::= { bfdSessEntry 24 }
bfdSessReqMinRxInterval OBJECT-TYPE
SYNTAX BfdIntervalTC
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This object specifies the minimum interval, in
microseconds, between received BFD Control packets the
local system is capable of supporting. The value of
zero(0) can be specified when the transmitting system
does not want the remote system to send any periodic BFD
control packets."
REFERENCE
"Section 4.1 from Katz, D. and D. Ward, Bidirectional
Forwarding Detection (BFD), RFC 5880, June 2012."
::= { bfdSessEntry 25 }
bfdSessReqMinEchoRxInterval OBJECT-TYPE
SYNTAX BfdIntervalTC
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This object specifies the minimum interval, in
microseconds, between received BFD Echo packets that this
system is capable of supporting. Value must be zero(0) if
this is a multihop BFD session."
::= { bfdSessEntry 26 }
bfdSessDetectMult OBJECT-TYPE
SYNTAX BfdMultiplierTC
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This object specifies the Detect time multiplier."
::= { bfdSessEntry 27 }
bfdSessNegotiatedInterval OBJECT-TYPE
SYNTAX BfdIntervalTC
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object specifies the negotiated interval, in
microseconds, that the local system is transmitting
BFD Control packets."
::= { bfdSessEntry 28 }
bfdSessNegotiatedEchoInterval OBJECT-TYPE
SYNTAX BfdIntervalTC
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object specifies the negotiated interval, in
microseconds, that the local system is transmitting
BFD echo packets. Value is expected to be zero if
the sessions is not running in echo mode."
::= { bfdSessEntry 29 }
bfdSessNegotiatedDetectMult OBJECT-TYPE
SYNTAX BfdMultiplierTC
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object specifies the Detect time multiplier."
::= { bfdSessEntry 30 }
bfdSessAuthPresFlag OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This object indicates that the local system's
desire to use Authentication. Specifically, it is set
to true(1) if the local system wishes the session
to be authenticated or false(2) if not."
REFERENCE
"Sections 4.2 - 4.4 from Katz, D. and D. Ward,
Bidirectional Forwarding Detection (BFD), RFC 5880,
June 2012."
DEFVAL { false }
::= { bfdSessEntry 31 }
bfdSessAuthenticationType OBJECT-TYPE
SYNTAX BfdSessAuthenticationTypeTC
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The Authentication Type used for this BFD session.
This field is valid only when the Authentication
Present bit is set. Max-access to this object as well as
other authentication related objects are set to
read-create in order to support management of a single
key ID at a time, key rotation is not handled. Key update
in practice must be done by atomic update using a set
containing all affected objects in the same varBindList
or otherwise risk the session dropping. Value -1
indicates that no authentication is in use for this
session."
REFERENCE
"Sections 4.2 - 4.4 from Katz, D. and D. Ward,
Bidirectional Forwarding Detection (BFD), RFC 5880,
June 2012."
DEFVAL { -1 }
::= { bfdSessEntry 32 }
bfdSessAuthenticationKeyID OBJECT-TYPE
SYNTAX Integer32 (-1 | 0..255)
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The authentication key ID in use for this session. This
object permits multiple keys to be active simultaneously.
When bfdSessAuthPresFlag is false(2), then the value
of this object MUST be -1. The value -1 indicates that
no Authentication Key ID will be present in the optional
BFD Authentication Section."
REFERENCE
"Sections 4.2 - 4.4 from Katz, D. and D. Ward,
Bidirectional Forwarding Detection (BFD), RFC 5880,
June 2012."
DEFVAL { -1 }
::= { bfdSessEntry 33 }
bfdSessAuthenticationKey OBJECT-TYPE
SYNTAX BfdSessionAuthenticationKeyTC
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The authentication key. When the
bfdSessAuthenticationType is simplePassword(1), the value
of this object is the password present in the BFD packets.
When the bfdSessAuthentication type is one of the keyed
authentication types, this value is used in the
computation of the key present in the BFD authentication
packet."
REFERENCE
"Sections 4.2 - 4.4 from Katz, D. and D. Ward,
Bidirectional Forwarding Detection (BFD), RFC 5880,
June 2012."
::= { bfdSessEntry 34 }
bfdSessStorageType OBJECT-TYPE
SYNTAX StorageType
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This variable indicates the storage type for this
object. Conceptual rows having the value
'permanent' need not allow write-access to any
columnar objects in the row."
::= { bfdSessEntry 35 }
bfdSessRowStatus OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This variable is used to create, modify, and/or
delete a row in this table. When a row in this
table has a row in the active(1) state, no
objects in this row can be modified except the
bfdSessRowStatus and bfdSessStorageType."
::= { bfdSessEntry 36 }
-- BFD Session Performance Table
bfdSessPerfTable OBJECT-TYPE
SYNTAX SEQUENCE OF BfdSessPerfEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table specifies BFD Session performance counters."
::= { bfdObjects 3 }
bfdSessPerfEntry OBJECT-TYPE
SYNTAX BfdSessPerfEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry in this table is created by a BFD-enabled node
for every BFD Session. bfdSessPerfDiscTime is used to
indicate potential discontinuity for all counter objects
in this table."
AUGMENTS { bfdSessEntry }
::= { bfdSessPerfTable 1 }
BfdSessPerfEntry ::= SEQUENCE {
bfdSessPerfCtrlPktIn Counter32,
bfdSessPerfCtrlPktOut Counter32,
bfdSessPerfCtrlPktDrop Counter32,
bfdSessPerfCtrlPktDropLastTime TimeStamp,
bfdSessPerfEchoPktIn Counter32,
bfdSessPerfEchoPktOut Counter32,
bfdSessPerfEchoPktDrop Counter32,
bfdSessPerfEchoPktDropLastTime TimeStamp,
bfdSessUpTime TimeStamp,
bfdSessPerfLastSessDownTime TimeStamp,
bfdSessPerfLastCommLostDiag BfdDiagTC,
bfdSessPerfSessUpCount Counter32,
bfdSessPerfDiscTime TimeStamp,
-- High Capacity Counters
bfdSessPerfCtrlPktInHC Counter64,
bfdSessPerfCtrlPktOutHC Counter64,
bfdSessPerfCtrlPktDropHC Counter64,
bfdSessPerfEchoPktInHC Counter64,
bfdSessPerfEchoPktOutHC Counter64,
bfdSessPerfEchoPktDropHC Counter64
}
-- Ed Note: should we add per-diag code counts here,
bfdSessPerfCtrlPktIn OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The total number of BFD control messages received for this
BFD session.
It MUST be equal to the least significant 32 bits of
bfdSessPerfCtrlPktInHC if supported, and MUST do so
with the rules spelled out in RFC 2863."
::= { bfdSessPerfEntry 1 }
bfdSessPerfCtrlPktOut OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The total number of BFD control messages sent for this BFD
session.
It MUST be equal to the least significant 32 bits of
bfdSessPerfCtrlPktOutHC if supported, and MUST do so
with the rules spelled out in RFC 2863."
::= { bfdSessPerfEntry 2 }
bfdSessPerfCtrlPktDrop OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The total number of BFD control messages received for this
session yet dropped for being invalid.
It MUST be equal to the least significant 32 bits of
bfdSessPerfCtrlPktDropHC if supported, and MUST do so
with the rules spelled out in RFC 2863."
::= { bfdSessPerfEntry 3 }
bfdSessPerfCtrlPktDropLastTime OBJECT-TYPE
SYNTAX TimeStamp
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The value of sysUpTime on the most recent occasion at
which received BFD control message for this session was
dropped. If no such up event exists, this object contains
a zero value."
::= { bfdSessPerfEntry 4 }
bfdSessPerfEchoPktIn OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The total number of BFD echo messages received for this
BFD session.
It MUST be equal to the least significant 32 bits of
bfdSessPerfEchoPktInHC if supported, and MUST do so
with the rules spelled out in RFC 2863."
::= { bfdSessPerfEntry 5 }
bfdSessPerfEchoPktOut OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The total number of BFD echo messages sent for this BFD
session.
It MUST be equal to the least significant 32 bits of
bfdSessPerfEchoPktOutHC if supported, and MUST do so
with the rules spelled out in RFC 2863."
::= { bfdSessPerfEntry 6 }
bfdSessPerfEchoPktDrop OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The total number of BFD echo messages received for this
session yet dropped for being invalid.
It MUST be equal to the least significant 32 bits of
bfdSessPerfEchoPktDropHC if supported, and MUST do so
with the rules spelled out in RFC 2863."
::= { bfdSessPerfEntry 7 }
bfdSessPerfEchoPktDropLastTime OBJECT-TYPE
SYNTAX TimeStamp
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The value of sysUpTime on the most recent occasion at
which received BFD echo message for this session was
dropped. If no such up event exists, this object contains
a zero value."
::= { bfdSessPerfEntry 8 }
bfdSessUpTime OBJECT-TYPE
SYNTAX TimeStamp
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The value of sysUpTime on the most recent occasion at which
the session came up. If no such up event exists this object
contains a zero value."
::= { bfdSessPerfEntry 9 }
bfdSessPerfLastSessDownTime OBJECT-TYPE
SYNTAX TimeStamp
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The value of sysUpTime on the most recent occasion at
which the last time communication was lost with the
neighbor. If no such down event exist this object
contains a zero value."
::= { bfdSessPerfEntry 10 }
bfdSessPerfLastCommLostDiag OBJECT-TYPE
SYNTAX BfdDiagTC
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The BFD diag code for the last time communication was lost
with the neighbor. If no such down event exists this object
contains a zero value."
::= { bfdSessPerfEntry 11 }
bfdSessPerfSessUpCount OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of times this session has gone into the Up
state since the system last rebooted."
::= { bfdSessPerfEntry 12 }
bfdSessPerfDiscTime OBJECT-TYPE
SYNTAX TimeStamp
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The value of sysUpTime on the most recent occasion at
which any one or more of the session counters suffered
a discontinuity.
The relevant counters are the specific instances associated
with this BFD session of any Counter32 object contained in
the BfdSessPerfTable. If no such discontinuities have
occurred since the last re-initialization of the local
management subsystem, then this object contains a zero
value."
::= { bfdSessPerfEntry 13 }
bfdSessPerfCtrlPktInHC OBJECT-TYPE
SYNTAX Counter64
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This value represents the total number of BFD control
messages received for this BFD session.
The least significant 32 bits MUST equal to
bfdSessPerfCtrlPktIn, and MUST do so with
the rules spelled out in RFC 2863."
::= { bfdSessPerfEntry 14 }
bfdSessPerfCtrlPktOutHC OBJECT-TYPE
SYNTAX Counter64
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This value represents the total number of BFD control
messages transmitted for this BFD session.
The least significant 32 bits MUST equal to
bfdSessPerfCtrlPktOut, and MUST do so with
the rules spelled out in RFC 2863."
::= { bfdSessPerfEntry 15 }
bfdSessPerfCtrlPktDropHC OBJECT-TYPE
SYNTAX Counter64
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This value represents the total number of BFD control
messages received for this BFD session yet dropped for
being invalid.
The least significant 32 bits MUST equal to
bfdSessPerfCtrlPktDrop, and MUST do so with
the rules spelled out in RFC 2863."
::= { bfdSessPerfEntry 16 }
bfdSessPerfEchoPktInHC OBJECT-TYPE
SYNTAX Counter64
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This value represents the total number of BFD echo
messages received for this BFD session.
The least significant 32 bits MUST equal to
bfdSessPerfEchoPktIn, and MUST do so with
the rules spelled out in RFC 2863."
::= { bfdSessPerfEntry 17 }
bfdSessPerfEchoPktOutHC OBJECT-TYPE
SYNTAX Counter64
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This value represents the total number of BFD echo
messages transmitted for this BFD session.
The least significant 32 bits MUST equal to
bfdSessPerfEchoPktOut, and MUST do so with
the rules spelled out in RFC 2863."
::= { bfdSessPerfEntry 18 }
bfdSessPerfEchoPktDropHC OBJECT-TYPE
SYNTAX Counter64
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This value represents the total number of BFD echo
messages received for this BFD session yet dropped
for being invalid.
The least significant 32 bits MUST equal to
bfdSessPerfEchoPktDrop, and MUST do so with
the rules spelled out in RFC 2863."
::= { bfdSessPerfEntry 19 }
-- BFD Session Discriminator Mapping Table
bfdSessDiscMapTable OBJECT-TYPE
SYNTAX SEQUENCE OF BfdSessDiscMapEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The BFD Session Discriminator Mapping Table maps a
local discriminator value to associated BFD session's
BfdSessIndexTC used in the bfdSessionTable."
::= { bfdObjects 4 }
bfdSessDiscMapEntry OBJECT-TYPE
SYNTAX BfdSessDiscMapEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The BFD Session Discriminator Map Entry describes
BFD session that is mapped to this BfdSessIndexTC."
INDEX { bfdSessDiscriminator }
::= { bfdSessDiscMapTable 1 }
BfdSessDiscMapEntry ::= SEQUENCE {
bfdSessDiscMapIndex BfdSessIndexTC,
bfdSessDiscMapStorageType StorageType,
bfdSessDiscMapRowStatus RowStatus
}
bfdSessDiscMapIndex OBJECT-TYPE
SYNTAX BfdSessIndexTC
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object specifies the BfdSessIndexTC referred to by
the indices of this row. In essence, a mapping is
provided between these indexes and the BfdSessTable."
::= { bfdSessDiscMapEntry 1 }
bfdSessDiscMapStorageType OBJECT-TYPE
SYNTAX StorageType
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This variable indicates the storage type for this
object. Conceptual rows having the value
'permanent' need not allow write-access to any
columnar objects in the row."
::= { bfdSessDiscMapEntry 2 }
bfdSessDiscMapRowStatus OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This variable is used to create, modify, and/or
delete a row in this table. When a row in this
table has a row in the active(1) state, no
objects in this row can be modified except the
bfdSessDiscMapRowStatus and bfdSessDiscMapStorageType."
::= { bfdSessDiscMapEntry 3 }
-- BFD Session IP Mapping Table
bfdSessIpMapTable OBJECT-TYPE
SYNTAX SEQUENCE OF BfdSessIpMapEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The BFD Session IP Mapping Table maps given
bfdSessInterface, bfdSessSrcAddrType, bfdSessSrcAddr,
bfdSessDstAddrType and bfdSessDstAddr
to an associated BFD session's BfdSessIndexTC used in
the bfdSessionTable."
::= { bfdObjects 5 }
bfdSessIpMapEntry OBJECT-TYPE
SYNTAX BfdSessIpMapEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The BFD Session IP Map Entry describes
BFD session that is mapped to this BfdSessIndexTC."
INDEX {
bfdSessInterface,
bfdSessSrcAddrType,
bfdSessSrcAddr,
bfdSessDstAddrType,
bfdSessDstAddr
}
::= { bfdSessIpMapTable 1 }
BfdSessIpMapEntry ::= SEQUENCE {
bfdSessIpMapIndex BfdSessIndexTC,
bfdSessIpMapStorageType StorageType,
bfdSessIpMapRowStatus RowStatus
}
bfdSessIpMapIndex OBJECT-TYPE
SYNTAX BfdSessIndexTC
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object specifies the BfdSessIndexTC referred to by
the indexes of this row. In essence, a mapping is
provided between these indexes and the BfdSessTable."
::= { bfdSessIpMapEntry 1 }
bfdSessIpMapStorageType OBJECT-TYPE
SYNTAX StorageType
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This variable indicates the storage type for this
object. Conceptual rows having the value
'permanent' need not allow write-access to any
columnar objects in the row."
::= { bfdSessIpMapEntry 2 }
bfdSessIpMapRowStatus OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This variable is used to create, modify, and/or
delete a row in this table. When a row in this
table has a row in the active(1) state, no
objects in this row can be modified except the
bfdSessIpMapRowStatus and bfdSessIpMapStorageType."
::= { bfdSessIpMapEntry 3 }
-- Notification Configuration
bfdSessUp NOTIFICATION-TYPE
OBJECTS {
bfdSessDiag, -- low range value
bfdSessDiag -- high range value
}
STATUS current
DESCRIPTION
"This notification is generated when the
bfdSessState object for one or more contiguous
entries in bfdSessTable are about to enter the up(4)
state from some other state. The included values of
bfdSessDiag MUST both be set equal to this
new state (i.e: up(4)). The two instances of
bfdSessDiag in this notification indicate the range
of indexes that are affected. Note that all the indexes
of the two ends of the range can be derived from the
instance identifiers of these two objects. For the
cases where a contiguous range of sessions
have transitioned into the up(4) state at roughly
the same time, the device SHOULD issue a single
notification for each range of contiguous indexes in
an effort to minimize the emission of a large number
of notifications. If a notification has to be
issued for just a single bfdSessEntry, then
the instance identifier (and values) of the two
bfdSessDiag objects MUST be the identical."
::= { bfdNotifications 1 }
bfdSessDown NOTIFICATION-TYPE
OBJECTS {
bfdSessDiag, -- low range value
bfdSessDiag -- high range value
}
STATUS current
DESCRIPTION
"This notification is generated when the
bfdSessState object for one or more contiguous
entries in bfdSessTable are about to enter the down(2)
or adminDown(1) states from some other state. The included
values of bfdSessDiag MUST both be set equal to this new
state (i.e: down(2) or adminDown(1)). The two instances
of bfdSessDiag in this notification indicate the range
of indexes that are affected. Note that all the indexes
of the two ends of the range can be derived from the
instance identifiers of these two objects. For
cases where a contiguous range of sessions
have transitioned into the down(2) or adminDown(1) states
at roughly the same time, the device SHOULD issue a single
notification for each range of contiguous indexes in
an effort to minimize the emission of a large number
of notifications. If a notification has to be
issued for just a single bfdSessEntry, then
the instance identifier (and values) of the two
bfdSessDiag objects MUST be the identical."
::= { bfdNotifications 2 }
-- Ed Note: We need to add notification for changes
-- when the two ends automatically negotiate to a new detection time
-- value or when detection multiplier changes.
-- Module compliance.
bfdGroups
OBJECT IDENTIFIER ::= { bfdConformance 1 }
bfdCompliances
OBJECT IDENTIFIER ::= { bfdConformance 2 }
-- Compliance requirement for fully compliant implementations.
bfdModuleFullCompliance MODULE-COMPLIANCE
STATUS current
DESCRIPTION
"Compliance statement for agents that provide full
support for the BFD-MIB module. Such devices can
then be monitored and also be configured using
this MIB module."
MODULE -- This module.
MANDATORY-GROUPS {
bfdSessionGroup,
bfdSessionReadOnlyGroup,
bfdSessionPerfGroup,
bfdNotificationGroup
}
GROUP bfdSessionPerfHCGroup
DESCRIPTION "This group is mandatory for all systems that
are able to support the Counter64 date type."
OBJECT bfdSessSrcAddrType
SYNTAX InetAddressType { unknown(0), ipv4(1),
ipv6(2), ipv6z(4) }
DESCRIPTION "Only unknown(0), ipv4(1), ipv6(2) and ipv6z(4)
support are required."
OBJECT bfdSessSrcAddr
SYNTAX InetAddress (SIZE (0|4|16|20))
DESCRIPTION "An implementation is only required to support
unknown(0), ipv4(1), ipv6(2) and ipv6z(4) sizes."
OBJECT bfdSessDstAddrType
SYNTAX InetAddressType { unknown(0), ipv4(1),
ipv6(2), ipv6z(4) }
DESCRIPTION "Only unknown(0), ipv4(1), ipv6(2) and ipv6z(4)
support are required."
OBJECT bfdSessDstAddr
SYNTAX InetAddress (SIZE (0|4|16|20))
DESCRIPTION "An implementation is only required to support
unknown(0), ipv4(1), ipv6(2) and ipv6z(4) sizes."
OBJECT bfdSessRowStatus
SYNTAX RowStatus { active(1), notInService(2) }
WRITE-SYNTAX RowStatus { active(1), notInService(2),
createAndGo(4), destroy(6) }
DESCRIPTION "Support for createAndWait and notReady is not
required."
OBJECT bfdSessDiscMapRowStatus
SYNTAX RowStatus { active(1), notInService(2) }
WRITE-SYNTAX RowStatus { active(1), notInService(2),
createAndGo(4), destroy(6) }
DESCRIPTION "Support for createAndWait and notReady is not
required."
OBJECT bfdSessIpMapRowStatus
SYNTAX RowStatus { active(1), notInService(2) }
WRITE-SYNTAX RowStatus { active(1), notInService(2),
createAndGo(4), destroy(6) }
DESCRIPTION "Support for createAndWait and notReady is not
required."
::= { bfdCompliances 1 }
bfdModuleReadOnlyCompliance MODULE-COMPLIANCE
STATUS current
DESCRIPTION
"Compliance requirement for implementations that only
provide read-only support for BFD-MIB. Such devices
can then be monitored but cannot be configured using
this MIB module."
MODULE -- This module.
MANDATORY-GROUPS {
bfdSessionGroup,
bfdSessionReadOnlyGroup,
bfdSessionPerfGroup,
bfdNotificationGroup
}
GROUP bfdSessionPerfHCGroup
DESCRIPTION "This group is mandatory for all systems that
are able to support the Counter64 date type."
OBJECT bfdSessVersionNumber
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
OBJECT bfdSessType
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
OBJECT bfdSessDiscriminator
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
OBJECT bfdSessDestinationUdpPort
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
OBJECT bfdSessSourceUdpPort
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
OBJECT bfdSessEchoSourceUdpPort
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
OBJECT bfdSessAdminStatus
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
OBJECT bfdSessOperMode
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
OBJECT bfdSessDemandModeDesiredFlag
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
OBJECT bfdSessControlPlaneIndepFlag
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
OBJECT bfdSessMultipointFlag
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
OBJECT bfdSessInterface
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
OBJECT bfdSessSrcAddrType
SYNTAX InetAddressType { unknown(0), ipv4(1),
ipv6(2), ipv6z(4) }
MIN-ACCESS read-only
DESCRIPTION "Only unknown(0), ipv4(1), ipv6(2) and ipv6z(4)
support are required."
OBJECT bfdSessSrcAddr
SYNTAX InetAddress (SIZE (0|4|16|20))
MIN-ACCESS read-only
DESCRIPTION "An implementation is only required to support
unknown(0), ipv4(1), ipv6(2) and ipv6z(4) sizes."
OBJECT bfdSessDstAddrType
SYNTAX InetAddressType { unknown(0), ipv4(1),
ipv6(2), ipv6z(4) }
MIN-ACCESS read-only
DESCRIPTION "Only unknown(0), ipv4(1), ipv6(2) and ipv6z(4)
support are required."
OBJECT bfdSessDstAddr
SYNTAX InetAddress (SIZE (0|4|16|20))
MIN-ACCESS read-only
DESCRIPTION "An implementation is only required to support
unknown(0), ipv4(1), ipv6(2) and ipv6z(4) sizes."
OBJECT bfdSessGTSM
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
OBJECT bfdSessGTSMTTL
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
OBJECT bfdSessDesiredMinTxInterval
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
OBJECT bfdSessReqMinRxInterval
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
OBJECT bfdSessReqMinEchoRxInterval
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
OBJECT bfdSessDetectMult
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
OBJECT bfdSessAuthPresFlag
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
OBJECT bfdSessAuthenticationType
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
OBJECT bfdSessAuthenticationKeyID
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
OBJECT bfdSessAuthenticationKey
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
OBJECT bfdSessStorageType
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
OBJECT bfdSessRowStatus
SYNTAX RowStatus { active(1) }
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
OBJECT bfdSessDiscMapStorageType
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
OBJECT bfdSessDiscMapRowStatus
SYNTAX RowStatus { active(1) }
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
OBJECT bfdSessIpMapStorageType
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
OBJECT bfdSessIpMapRowStatus
SYNTAX RowStatus { active(1) }
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
::= { bfdCompliances 2 }
-- Units of conformance.
bfdSessionGroup OBJECT-GROUP
OBJECTS {
bfdAdminStatus,
bfdSessNotificationsEnable,
bfdSessVersionNumber,
bfdSessType,
bfdSessDiscriminator,
bfdSessDestinationUdpPort,
bfdSessSourceUdpPort,
bfdSessEchoSourceUdpPort,
bfdSessAdminStatus,
bfdSessOperMode,
bfdSessDemandModeDesiredFlag,
bfdSessControlPlaneIndepFlag,
bfdSessMultipointFlag,
bfdSessInterface,
bfdSessSrcAddrType,
bfdSessSrcAddr,
bfdSessDstAddrType,
bfdSessDstAddr,
bfdSessGTSM,
bfdSessGTSMTTL,
bfdSessDesiredMinTxInterval,
bfdSessReqMinRxInterval,
bfdSessReqMinEchoRxInterval,
bfdSessDetectMult,
bfdSessAuthPresFlag,
bfdSessAuthenticationType,
bfdSessAuthenticationKeyID,
bfdSessAuthenticationKey,
bfdSessStorageType,
bfdSessRowStatus,
bfdSessDiscMapStorageType,
bfdSessDiscMapRowStatus,
bfdSessIpMapStorageType,
bfdSessIpMapRowStatus
}
STATUS current
DESCRIPTION
"Collection of objects needed for BFD sessions."
::= { bfdGroups 1 }
bfdSessionReadOnlyGroup OBJECT-GROUP
OBJECTS {
bfdSessRemoteDiscr,
bfdSessState,
bfdSessRemoteHeardFlag,
bfdSessDiag,
bfdSessNegotiatedInterval,
bfdSessNegotiatedEchoInterval,
bfdSessNegotiatedDetectMult,
bfdSessDiscMapIndex,
bfdSessIpMapIndex
}
STATUS current
DESCRIPTION
"Collection of read-only objects needed for BFD sessions."
::= { bfdGroups 2 }
bfdSessionPerfGroup OBJECT-GROUP
OBJECTS {
bfdSessPerfCtrlPktIn,
bfdSessPerfCtrlPktOut,
bfdSessPerfCtrlPktDrop,
bfdSessPerfCtrlPktDropLastTime,
bfdSessPerfEchoPktIn,
bfdSessPerfEchoPktOut,
bfdSessPerfEchoPktDrop,
bfdSessPerfEchoPktDropLastTime,
bfdSessUpTime,
bfdSessPerfLastSessDownTime,
bfdSessPerfLastCommLostDiag,
bfdSessPerfSessUpCount,
bfdSessPerfDiscTime
}
STATUS current
DESCRIPTION
"Collection of objects needed to monitor the
performance of BFD sessions."
::= { bfdGroups 3 }
bfdSessionPerfHCGroup OBJECT-GROUP
OBJECTS {
bfdSessPerfCtrlPktInHC,
bfdSessPerfCtrlPktOutHC,
bfdSessPerfCtrlPktDropHC,
bfdSessPerfEchoPktInHC,
bfdSessPerfEchoPktOutHC,
bfdSessPerfEchoPktDropHC
}
STATUS current
DESCRIPTION
"Collection of objects needed to monitor the
performance of BFD sessions for which the
values of bfdSessPerfPktIn, bfdSessPerfPktOut
wrap around too quickly."
::= { bfdGroups 4 }
bfdNotificationGroup NOTIFICATION-GROUP
NOTIFICATIONS {
bfdSessUp,
bfdSessDown
}
STATUS current
DESCRIPTION
"Set of notifications implemented in this
module."
::= { bfdGroups 5 }
END
As BFD may be tied into the stability of the network infrastructure (such as routing protocols), the effects of an attack on a BFD session may be very serious. This ultimately has denial-of-service effects, as links may be declared to be down (or falsely declared to be up.) 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-write and/or 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 can have a negative effect on network operations. These are the tables and objects and their sensitivity/vulnerability:
There are a number of management objects defined in this MIB module with a MAX-ACCESS clause of read-write and/or read-create. Such objects 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.
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. These are the tables and objects and their sensitivity/vulnerability:
The bfdSessAuthenticationType, bfdSessAuthenticationKeyID, and bfdSessAuthenticationKey objects hold security methods and associated security keys of BFD sessions. These objects SHOULD be considered highly sensitive objects. In order for these sensitive information from being improperly accessed, implementers MAY wish to disallow read and create access to these objects.
SNMP versions prior to SNMPv3 did not include adequate security. Even if the network itself is secure "for example by using IPSec", even then, 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 these MIB modules.
It is RECOMMENDED that implementers consider the security features as provided by the SNMPv3 framework (see [RFC3410], section 8), including full support for the SNMPv3 cryptographic mechanisms "for authentication and privacy".
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 access to the objects only to those principals "users" that have legitimate rights to indeed GET or SET "change/create/delete" them.
The MIB module in this document uses the following IANA-assigned
OBJECT IDENTIFIER values recorded in the SMI Numbers registry:
Descriptor OBJECT IDENTIFIER value
---------- -----------------------
bfdMib { mib-2 XXX }
[Editor's Note (to be removed prior to publication): the IANA is requested to assign a value for "XXX" under the 'mib-2' subtree and to record the assignment in the SMI Numbers registry. When the assignment has been made, the RFC Editor is asked to replace "XXX" (here and in the MIB module) with the assigned value and to remove this note.]
This document also requests IANA to manage the registry for the BfdDiagTC object.
| [RFC3410] | Case, J., Mundy, R., Partain, D. and B. Stewart, "Introduction and Applicability Statements for Internet-Standard Management Framework", RFC 3410, December 2002. |
| [RFC4001] | Daniele, M., Haberman, B., Routhier, S. and J. Schoenwaelder, "Textual Conventions for Internet Network Addresses", RFC 4001, February 2005. |
| [RFC2863] | McCloghrie, K. and F. Kastenholz, "The Interfaces Group MIB", RFC 2863, June 2000. |
| [RFC3413] | Levi, D., Meyer, P. and B. Stewart, "Simple Network Management Protocol (SNMP) Applications", STD 62, RFC 3413, December 2002. |
Authors would like to thank David Ward, Jeffrey Haas, Reshad Rahman, David Toscano, Sylvain Masse, Mark Tooker, and Kiran Koushik Agrahara Sreenivasa for their comments and suggestions.