FOUNDRY-SN-IP-VRRP-MIB

MIB Reference — IPNetwork Monitor

All MIBsFOUNDRY-SN-IP-VRRP-MIB

Organization: Brocade Communications Systems, Inc.

Last Updated: 2010-06-02

Category: Protocol: VRRP, Vendor: Foundry/Brocade

Description:

Brocade Foundry IP VRRP MIB providing Virtual Router Redundancy Protocol configuration and state management for FastIron router redundancy.

Imported Objects

From FOUNDRY-SN-ROOT-MIB

routerOBJECT-IDENTITY

From IF-MIB

ifIndexOBJECT-TYPE

From SNMPv2-SMI

Counter32
Integer32
IpAddress
MODULE-IDENTITY
OBJECT-TYPE

From SNMPv2-TC

TEXTUAL-CONVENTION

What Is FOUNDRY-SN-IP-VRRP-MIB?

FOUNDRY-SN-IP-VRRP-MIB is a Brocade Communications (originally Foundry Networks) vendor-specific MIB under the FOUNDRY-SN-ROOT-MIB router subtree that configures and monitors both standard VRRP and Foundry's VRRP-Extended (VRRPE) protocol for FastIron/NetIron router redundancy. Its current, ifIndex-based tables - snVrrpIf2Table for interface authentication settings and error counters, and snVrrpVirRtr2Table for virtual-router configuration - track ownership (owner/backup), configured/track/current priority, hello and dead intervals, preempt mode, and snVrrpVirRtr2State (init/master/backup), along with a long list of received-packet mismatch and drop counters (RxArpPktDropCnts, RxIpMismatchCnts, RxHelloIntMismatchCnts) and transition counters (TransToMasterStateCnts, TransToBackupStateCnts); the older port-indexed snVrrpIfTable/snVrrpVirRtrTable are retained but marked deprecated in favor of the ifIndex-based versions. Global scalars snVrrpGroupOperMode and snVrrpGroupOperModeVrrpextended enable/disable VRRP and VRRPE device-wide, and snVrrpIfStateChangeTrap controls whether interface state-change traps are generated. It depends on the underlying IF-MIB ifIndex space and is deployed on Brocade/Foundry routers providing first-hop gateway redundancy, and administrators rely on FOUNDRY-SN-IP-VRRP-MIB SNMP monitoring of master/backup transitions and VRRP protocol-error counters.

IPNetwork Monitor allows you to monitor SNMP objects defined in FOUNDRY-SN-IP-VRRP-MIB. Use the built-in SNMP Monitoring Browser to explore available variables, view their current values and descriptions, and select the objects you want to monitor. You can then create SNMP monitors, configure thresholds, and receive alerts when monitored values change.

What Can Be Monitored

  • VRRP/VRRPE global enable state
  • virtual router priority and state (init/master/backup)
  • hello/dead interval and preempt configuration
  • authentication and packet-mismatch error counters
  • master/backup transition counters

Supported Devices

  • Brocade (Foundry) FastIron/NetIron routers

Monitoring Examples

An operator polls snVrrpVirRtr2State for a virtual router entry in snVrrpVirRtr2Table, and an unexpected transition from master(1) to backup(2) - reflected in a rising snVrrpVirRtr2TransToBackupStateCnts - would indicate the router lost mastership, potentially due to a priority or hello-interval mismatch with a peer.

OIDs
OID symbolicOID numericTypeAccessDescription
snVrrp1.3.6.1.4.1.1991.1.2.12Copyright 1996-2010 Brocade Communications Systems, Inc. All rights reserved. This Brocade Communications Systems SNMP Management Information Base Specification embodies Brocade Communications Systems' confidential and proprietary intellectual property. Brocade Communications Systems retains all title and ownership in the Specification, including any revisions. This Specification is supplied AS IS, and Brocade Communications Systems makes no warranty, either express or implied, as to the use, operation, condition, or performance of the specification, and any unintended consequence it may on the user environment.
snVrrpGlobal1.3.6.1.4.1.1991.1.2.12.1
INT snVrrpGroupOperMode1.3.6.1.4.1.1991.1.2.12.1.1INTEGERread-writeThe VRRP is configured on this system either enabled or disabled and the default is disabled mode. disabled(0)..........disable VRRP enabled(1)...........activate VRRP
INT snVrrpIfStateChangeTrap1.3.6.1.4.1.1991.1.2.12.1.2INTEGERread-writeIndicates whether the SNMP agent process is permitted to generate vrrp and vrrpe interface state change traps.
I32 snVrrpIfMaxNumVridPerIntf1.3.6.1.4.1.1991.1.2.12.1.3Integer32read-onlyIndicates the maximum number of VRID per interface.
I32 snVrrpIfMaxNumVridPerSystem1.3.6.1.4.1.1991.1.2.12.1.4Integer32read-onlyIndicates the maximum number of VRID per system.
INT snVrrpClearVrrpStat1.3.6.1.4.1.1991.1.2.12.1.5INTEGERread-writeClear VRRP statistics command.
INT snVrrpGroupOperModeVrrpextended1.3.6.1.4.1.1991.1.2.12.1.6INTEGERread-writeThe VRRP_extended is configured on this system either enabled or disabled and the default is disabled mode. disabled(0)..........disable VRRP extended enabled(1)...........activate VRRP extended
snVrrpIntf1.3.6.1.4.1.1991.1.2.12.2
snVrrpIfTable1.3.6.1.4.1.1991.1.2.12.2.1not-accessibleThe VRRP Interface Table describes the interfaces from the viewpoint of VRRP.
snVrrpIfEntry1.3.6.1.4.1.1991.1.2.12.2.1.1not-accessibleThe VRRP Interface Entry describes one interface from the viewpoint of VRRP.
I32 snVrrpIfPort1.3.6.1.4.1.1991.1.2.12.2.1.1.1Integer32read-onlyThe IP port of this VRRP interface.
INT snVrrpIfAuthType1.3.6.1.4.1.1991.1.2.12.2.1.1.2INTEGERread-writeThe authentication type of this interface.
OCT snVrrpIfAuthPassword1.3.6.1.4.1.1991.1.2.12.2.1.1.3OCTET STRINGread-writeThe simple text password is allowed if only if the snVrrpIfAuthType type is simpleTextPasswd(1).
C32 snVrrpIfRxHeaderErrCnts1.3.6.1.4.1.1991.1.2.12.2.1.1.4Counter32read-onlyThe received Header error counts in this interface.
C32 snVrrpIfRxAuthTypeErrCnts1.3.6.1.4.1.1991.1.2.12.2.1.1.5Counter32read-onlyThe received authentication type error counts in this interface.
C32 snVrrpIfRxAuthPwdMismatchErrCnts1.3.6.1.4.1.1991.1.2.12.2.1.1.6Counter32read-onlyThe received authentication password mismatched error counts in this interface.
C32 snVrrpIfRxVridErrCnts1.3.6.1.4.1.1991.1.2.12.2.1.1.7Counter32read-onlyThe received unfound VRID error counts in this interface.
snVrrpVirRtr1.3.6.1.4.1.1991.1.2.12.3
snVrrpVirRtrTable1.3.6.1.4.1.1991.1.2.12.3.1not-accessibleThe VRRP virtual router Entry describes one virtual router from the viewpoint of VRRP.
snVrrpVirRtrEntry1.3.6.1.4.1.1991.1.2.12.3.1.1not-accessibleThe VRRP virtual router Entry describes one virtual router from the viewpoint of VRRP.
I32 snVrrpVirRtrPort1.3.6.1.4.1.1991.1.2.12.3.1.1.1Integer32read-onlyThe IP port of this VRRP interface.
INT snVrrpVirRtrId1.3.6.1.4.1.1991.1.2.12.3.1.1.2INTEGERread-onlyOne of the virtual router ID of this VRRP interface.
INT snVrrpVirRtrOwnership1.3.6.1.4.1.1991.1.2.12.3.1.1.3INTEGERread-writeThe ownership of this VRRP router interface can be set either owner(1) or backup(2). VirRtr SNMP-GET returns incomplete(0), it means no IP address has assigned to this VRRP router interface.
INT snVrrpVirRtrCfgPriority1.3.6.1.4.1.1991.1.2.12.3.1.1.4INTEGERread-writeThe higher the number the higher the priority is. This parameter decides which backup router should becomes the Active Router for the interface. A backup Router with higher priority selected to becomes the Active Router. Therefore, this Object can be set if only if snVrrpVirRtrOwnership is set to backup(2).
INT snVrrpVirRtrTrackPriority1.3.6.1.4.1.1991.1.2.12.3.1.1.5INTEGERread-writeThe higher the number the higher the priority is. after this object is configured, the snVrrpVirRtrCurrPriority of this interface will be adjusted dynamically with this track priority when the Track Port states first changes from UP to DOWN.
INT snVrrpVirRtrCurrPriority1.3.6.1.4.1.1991.1.2.12.3.1.1.6INTEGERread-onlyThe higher the number the higher the priority is. This object will be adjusted dynamically with the track priority when the Track Port states first changes from UP to DOWN.
INT snVrrpVirRtrHelloInt1.3.6.1.4.1.1991.1.2.12.3.1.1.7INTEGERread-writeTime interval between advertisements (seconds).
INT snVrrpVirRtrDeadInt1.3.6.1.4.1.1991.1.2.12.3.1.1.8INTEGERread-writeDead interval (seconds).
INT snVrrpVirRtrPreemptMode1.3.6.1.4.1.1991.1.2.12.3.1.1.9INTEGERread-writeThis mode controls whether a higher priority Backup router preempts a lower priority Master. The mode with enabled(1) allow preemption and disabled(0) prohibit preemption.
INT snVrrpVirRtrState1.3.6.1.4.1.1991.1.2.12.3.1.1.10INTEGERread-onlyThis object specifies the VRRP Router's interface state as: init(0)...initialization state. master(1)...master state. backup(2)...backup state.
INT snVrrpVirRtrActivate1.3.6.1.4.1.1991.1.2.12.3.1.1.11INTEGERread-writeThis object specifies the VRRP Router's activate command as: disabled(0)...deactivate this VRRP Router. enabled(1)....activate this VRRP Router.
OCT snVrrpVirRtrIpAddrMask1.3.6.1.4.1.1991.1.2.12.3.1.1.12OCTET STRINGread-writeThe numbers of IP Addresses of this virtual router of this interface.
OCT snVrrpVirRtrTrackPortMask1.3.6.1.4.1.1991.1.2.12.3.1.1.13OCTET STRINGread-writeThis object specifies the identity of the physical port whose state is to be monitored. Each bit is a port of the system. Default value is 0. VirRtr this object is configured then the Preference Level of this interface will be adjusted dynamically depending on the state of the Track Port. The interface's Preference Level is reduced by value of Preference Level parameter when the Track Port states first changes from UP to DOWN. When the Track Port next comes up the interface's Preference Level is increased by the amount specified by the Preference Level. The Chassis/Stackable router VRRP Track port membership. The size of the OCTET STRING for Chassis is 32. The size of the OCTET STRING for Stackable is 4. (It was obsoleted after release 07100, replaced by snVrrpVirRtrTrackPortList)
OCT snVrrpVirRtrTrackVifMask1.3.6.1.4.1.1991.1.2.12.3.1.1.14OCTET STRINGread-writeThis object specifies the identity of the virtual interface whose state is to be monitored. Each bit is a port of the system. Default value is 0. VirRtr this object is configured then the Preference Level of this interface will be adjusted dynamically depending on the state of the Track Port. The interface's Preference Level is reduced by value of Preference Level parameter when the Track Port states first changes from UP to DOWN. When the Track Port next comes up the interface's Preference Level is increased by the amount specified by the Preference Level. The Chassis/Stackable router VRRP Track port membership The size of the OCTET STRING for Chassis is 8. The size of the OCTET STRING for Stackable is 4. (It was obsoleted after release 07100, replaced by snVrrpVirRtrTrackVifPortList)
INT snVrrpVirRtrRowStatus1.3.6.1.4.1.1991.1.2.12.3.1.1.15INTEGERread-writeThis object is used to create and delete row in the table and control if they are used. The values that can be written are: delete(3)...deletes the row create(4)...creates a new row modify(5)...modifies an existing row VirRtr the row exists, then a SET with value of create(4) returns error 'badValue'. Deleted rows go away immediately. The following values can be returned on reads: noSuch(0)...no such row invalid(1)...Setting it to 'invalid' has the effect of rendering it inoperative.. valid(2)....the row exists and is valid
C32 snVrrpVirRtrRxArpPktDropCnts1.3.6.1.4.1.1991.1.2.12.3.1.1.16Counter32read-onlyThe received VRRP ARP Packet Drop Counts.
C32 snVrrpVirRtrRxIpPktDropCnts1.3.6.1.4.1.1991.1.2.12.3.1.1.17Counter32read-onlyThe received VRRP IP Packet Drop Counts.
C32 snVrrpVirRtrRxPortMismatchCnts1.3.6.1.4.1.1991.1.2.12.3.1.1.18Counter32read-onlyThe received VRRP Port mismatching Counts.
C32 snVrrpVirRtrRxNumOfIpMismatchCnts1.3.6.1.4.1.1991.1.2.12.3.1.1.19Counter32read-onlyThe received VRRP Number of IP Addresses mismatching Counts.
C32 snVrrpVirRtrRxIpMismatchCnts1.3.6.1.4.1.1991.1.2.12.3.1.1.20Counter32read-onlyThe received VRRP IP Address mismatching Counts.
C32 snVrrpVirRtrRxHelloIntMismatchCnts1.3.6.1.4.1.1991.1.2.12.3.1.1.21Counter32read-onlyThe counts of the virtual router interface with hello interval mismatch counts.
C32 snVrrpVirRtrRxPriorityZeroFromMasterCnts1.3.6.1.4.1.1991.1.2.12.3.1.1.22Counter32read-onlyThe counts of the virtual router interface with Priority zero from the master.
C32 snVrrpVirRtrRxHigherPriorityCnts1.3.6.1.4.1.1991.1.2.12.3.1.1.23Counter32read-onlyThe counts of the virtual router interface with higher Priority.
C32 snVrrpVirRtrTransToMasterStateCnts1.3.6.1.4.1.1991.1.2.12.3.1.1.24Counter32read-onlyThe counts of the virtual router interface transition to master state.
C32 snVrrpVirRtrTransToBackupStateCnts1.3.6.1.4.1.1991.1.2.12.3.1.1.25Counter32read-onlyThe counts of the virtual router interface transition to backup state.
I32 snVrrpVirRtrCurrDeadInt1.3.6.1.4.1.1991.1.2.12.3.1.1.26Integer32read-onlyCurrent Dead interval (in 100 milliseconds).
OCT snVrrpVirRtrTrackPortList1.3.6.1.4.1.1991.1.2.12.3.1.1.27OCTET STRINGread-writeThis object specifies the identity of the physical port whose state is to be monitored. Each port index is a 16-bit integer in big endian order. 8-bit is the slot number, the other 8-bit is the port number. Default value is 0 length octet string. If this object is configured then the Preference Level of this interface will be adjusted dynamically depending on the state of the Track Port. The interface's Preference Level is reduced by value of Preference Level parameter when the Track Port states first changes from UP to DOWN. When the Track Port next comes up the interface's Preference Level is increased by the amount specified by the Preference Level. The router VRRP physical track port membership.
OCT snVrrpVirRtrTrackVifPortList1.3.6.1.4.1.1991.1.2.12.3.1.1.28OCTET STRINGread-writeThis object specifies the identity of the virtual interface whose state is to be monitored. Each port index is a 16-bit integer in big endian order. Default value is 0 length octet string. If this object is configured then the Preference Level of this interface will be adjusted dynamically depending on the state of the Track Port. The interface's Preference Level is reduced by value of Preference Level parameter when the Track Port states first changes from UP to DOWN. When the Track Port next comes up the interface's Preference Level is increased by the amount specified by the Preference Level. The router VRRP virtual port track membership.
snVrrpIntf21.3.6.1.4.1.1991.1.2.12.4
snVrrpIf2Table1.3.6.1.4.1.1991.1.2.12.4.1not-accessibleThe VRRP and VRRPE Interface Table describes the interfaces from the viewpoint of VRRP and VRRPE.
snVrrpIf2Entry1.3.6.1.4.1.1991.1.2.12.4.1.1not-accessibleThe VRRP and VRRPE Interface Entry describes one interface from the viewpoint of VRRP and VRRPE.
INT snVrrpIf2AuthType1.3.6.1.4.1.1991.1.2.12.4.1.1.1INTEGERread-writeThe authentication type of this interface.
OCT snVrrpIf2AuthPassword1.3.6.1.4.1.1991.1.2.12.4.1.1.2OCTET STRINGread-writeThe simple text password is allowed if only if the snVrrpIf2AuthType type is simpleTextPasswd(1).
C32 snVrrpIf2RxHeaderErrCnts1.3.6.1.4.1.1991.1.2.12.4.1.1.3Counter32read-onlyThe received Header error counts in this interface.
C32 snVrrpIf2RxAuthTypeErrCnts1.3.6.1.4.1.1991.1.2.12.4.1.1.4Counter32read-onlyThe received authentication type error counts in this interface.
C32 snVrrpIf2RxAuthPwdMismatchErrCnts1.3.6.1.4.1.1991.1.2.12.4.1.1.5Counter32read-onlyThe received authentication password mismatched error counts in this interface.
C32 snVrrpIf2RxVridErrCnts1.3.6.1.4.1.1991.1.2.12.4.1.1.6Counter32read-onlyThe received unfound VRID error counts in this interface.
snVrrpVirRtr21.3.6.1.4.1.1991.1.2.12.5
snVrrpVirRtr2Table1.3.6.1.4.1.1991.1.2.12.5.1not-accessibleThe Vrrp and Vrrpe virtual router Entry describes one virtual router from the viewpoint of Vrrp and Vrrpe.
snVrrpVirRtr2Entry1.3.6.1.4.1.1991.1.2.12.5.1.1not-accessibleThe Vrrp and Vrrpe virtual router Entry describes one virtual router from the viewpoint of Vrrp and Vrrpe.
INT snVrrpVirRtr2Id1.3.6.1.4.1.1991.1.2.12.5.1.1.1INTEGERread-onlyOne of the virtual router ID of this Vrrp and Vrrpe interface.
INT snVrrpVirRtr2Ownership1.3.6.1.4.1.1991.1.2.12.5.1.1.2INTEGERread-writeThe ownership of this Vrrp router interface can be set either owner(1) or backup(2). VirRtr SNMP-GET returns incomplete(0), it means no IP address has assigned to this Vrrp router interface. vrrpe protocol has no owner(1), can only be set to backup(2) or incomplete(0).
INT snVrrpVirRtr2CfgPriority1.3.6.1.4.1.1991.1.2.12.5.1.1.3INTEGERread-writeThis object specifies the priority to be used for the virtual router master election process. Higher values imply higher priority. A priority of '0', although not settable, is sent by the master router to indicate that this router has ceased to participate in VRRP and a backup virtual router should transition to become a new master. A priority of 255 is only for VRRP - owner. Not valid for number to configure VRRPE.
INT snVrrpVirRtr2TrackPriority1.3.6.1.4.1.1991.1.2.12.5.1.1.4INTEGERread-writeThe higher the number the higher the priority is. After this object is configured, the snVrrpVirRtr2CurrPriority of this interface will be adjusted dynamically with this track priority when the Track Port states first changes from UP to DOWN.
INT snVrrpVirRtr2CurrPriority1.3.6.1.4.1.1991.1.2.12.5.1.1.5INTEGERread-onlyThe higher the number the higher the priority is. This object will be adjusted dynamically with the track priority when the Track Port states first changes from UP to DOWN.
INT snVrrpVirRtr2HelloInt1.3.6.1.4.1.1991.1.2.12.5.1.1.6INTEGERread-writeTime interval between advertisements (seconds).
INT snVrrpVirRtr2DeadInt1.3.6.1.4.1.1991.1.2.12.5.1.1.7INTEGERread-writeDead interval (seconds).
INT snVrrpVirRtr2PreemptMode1.3.6.1.4.1.1991.1.2.12.5.1.1.8INTEGERread-writeThis mode controls whether a higher priority Backup router preempts a lower priority Master. The mode with enabled(1) allow preemption and disabled(0) prohibit preemption.
INT snVrrpVirRtr2State1.3.6.1.4.1.1991.1.2.12.5.1.1.9INTEGERread-onlyThis object specifies the Vrrp and vrrpe Router's interface state as: init(0)...initialization state. master(1)...master state. backup(2)...backup state.
OCT snVrrpVirRtr2IpAddrMask1.3.6.1.4.1.1991.1.2.12.5.1.1.10OCTET STRINGread-writeThe numbers of IP Addresses of this virtual router of this interface.
INT snVrrpVirRtr2Activate1.3.6.1.4.1.1991.1.2.12.5.1.1.11INTEGERread-writeThis object specifies the Vrrp Router's activate command as: disabled(0)...deactivate this Vrrp and Vrrpe Routers. enabled(1)....activate this Vrrp and Vrrpe Routers.
INT snVrrpVirRtr2BackupInt1.3.6.1.4.1.1991.1.2.12.5.1.1.12INTEGERread-writeTime interval between backup routers hello message advertisements (seconds).
INT snVrrpVirRtr2RowStatus1.3.6.1.4.1.1991.1.2.12.5.1.1.13INTEGERread-writeThis object is used to create and delete row in the table and control if they are used. The values that can be written are: delete(3)...deletes the row create(4)...creates a new row modify(5)...modifies an existing row VirRtr the row exists, then a SET with value of create(4) returns error 'badValue'. Deleted rows go away immediately. The following values can be returned on reads: noSuch(0)...no such row invalid(1)...Setting it to 'invalid' has the effect of rendering it inoperative.. valid(2)....the row exists and is valid
C32 snVrrpVirRtr2RxArpPktDropCnts1.3.6.1.4.1.1991.1.2.12.5.1.1.14Counter32read-onlyThe received Vrrp and Vrrpe ARP Packet Drop Counts.
C32 snVrrpVirRtr2RxIpPktDropCnts1.3.6.1.4.1.1991.1.2.12.5.1.1.15Counter32read-onlyThe received Vrrp and Vrrpe IP Packet Drop Counts.
C32 snVrrpVirRtr2RxPortMismatchCnts1.3.6.1.4.1.1991.1.2.12.5.1.1.16Counter32read-onlyThe received Vrrp and Vrrpe Port mismatching Counts.
C32 snVrrpVirRtr2RxNumOfIpMismatchCnts1.3.6.1.4.1.1991.1.2.12.5.1.1.17Counter32read-onlyThe received Vrrp and Vrrpe Number of IP Addresses mismatching Counts.
C32 snVrrpVirRtr2RxIpMismatchCnts1.3.6.1.4.1.1991.1.2.12.5.1.1.18Counter32read-onlyThe received Vrrp and Vrrpe IP Address mismatching Counts.
C32 snVrrpVirRtr2RxHelloIntMismatchCnts1.3.6.1.4.1.1991.1.2.12.5.1.1.19Counter32read-onlyThe counts of the virtual router interface with hello interval mismatch counts.
C32 snVrrpVirRtr2RxPriorityZeroFromMasterCnts1.3.6.1.4.1.1991.1.2.12.5.1.1.20Counter32read-onlyThe counts of the virtual router interface with Priority zero from the master.
C32 snVrrpVirRtr2RxHigherPriorityCnts1.3.6.1.4.1.1991.1.2.12.5.1.1.21Counter32read-onlyThe counts of the virtual router interface with higher Priority.
C32 snVrrpVirRtr2TransToMasterStateCnts1.3.6.1.4.1.1991.1.2.12.5.1.1.22Counter32read-onlyThe counts of the virtual router interface transition to master state.
C32 snVrrpVirRtr2TransToBackupStateCnts1.3.6.1.4.1.1991.1.2.12.5.1.1.23Counter32read-onlyThe counts of the virtual router interface transition to backup state.
I32 snVrrpVirRtr2CurrDeadInt1.3.6.1.4.1.1991.1.2.12.5.1.1.24Integer32read-onlyCurrent Dead interval (in 100 milliseconds).
OCT snVrrpVirRtr2TrackPortList1.3.6.1.4.1.1991.1.2.12.5.1.1.25OCTET STRINGread-writeThis object specifies the identity of the physical port and virtual ports whose state is to be monitored. Each port index is an ifIndex, if there are consecutive 4 or more ifIndex then they will be encoded like below. Encoding and decoding scheme is range based: Each range prefix with 0000 (2 octets) where 0000 is not valid ifIndex. Next 2 octets indicates lower range ifIndex, followed by 2 octets of higher range ifIndex. Individual(non range) ones will be displayed as it is. Ex: port list: 0001..0005 0015 0032..0047 Port list in PDU: 0000 0001 0005 000f 0000 0020 002f. If this object is configured then the Preference Level of this interface will be adjusted dynamically depending on the state of the Track Port. The interface's Preference Level is reduced by value of Preference Level parameter when the Track Port states first changes from UP to DOWN. When the Track Port next comes up the interface's Preference Level is increased by the amount specified by the Preference Level. The router VRRP and VRRP-E physical track port membership.
INT snVrrpVirRtr2AdvertiseBackup1.3.6.1.4.1.1991.1.2.12.5.1.1.26INTEGERread-writeSet Advertise this backup router to master
IP snVrrpVirRtr2MasterIpAddr1.3.6.1.4.1.1991.1.2.12.5.1.1.27IpAddressread-onlyThe master router's real/virtual (primary) IP address. This is the IP address listed as the source in VRRP and VRRPE advertisement last received by this virtual router.
INT snVrrpVirRtr2IpAddrCount1.3.6.1.4.1.1991.1.2.12.5.1.1.28INTEGERread-onlyThe number of IP addresses that are associated with this virtual router. This number is equal to the number of rows in the vrrpAssoIpAddrTable that correspond to a given IF index/VRID pair.
MAC snVrrpVirRtr2VirtualMacAddr1.3.6.1.4.1.1991.1.2.12.5.1.1.29MacAddressread-onlyThe virtual MAC address of the virtual router. Although this object can be derived from the 'snVrrpVirRtr2VrId' object, it is defined so that it is easily obtainable by a management application and can be included in VRRP-related SNMP traps.

RFC description

VRRP (Virtual Router Redundancy Protocol) implementation on Brocade routers for gateway failover and redundancy.

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