RADLAN-VRRP

All MIBs › RADLAN-VRRP

Organization: Marvell Semiconductor, Inc.

Last Updated: 2010-12-09

Category: VRRP, Vendor: RADLAN/Cisco SB

Description: Configures Virtual Router Redundancy Protocol for gateway redundancy on Marvell switches.

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What Is RADLAN-VRRP?

RADLAN-VRRP is a vendor-specific private MIB from RADLAN/Marvell implementing VRRPv3, the Virtual Router Redundancy Protocol, which provides gateway redundancy by letting a group of routers share a virtual IP address with automatic failover. It exposes an operations table (rlVrrpv3OperationsTable/Entry) with per-virtual-router objects such as administrative state, VRRP version, master election priority (rlVrrpv3OperationsMasterPriority), advertisement/down timers, and an associated-IP-address table for the virtual router's addresses. This is squarely a software/protocol status monitoring MIB: an operator polls it to confirm which router currently holds the Master role, whether priorities are set as intended, and whether failover timers are configured correctly to avoid unnecessary role flapping. It parallels and depends conceptually on the standard IETF VRRP MIB while adding vendor-specific VRRPv3 detail. It is typically deployed on pairs or groups of Marvell/RADLAN-based Layer 3 switches providing redundant default-gateway service to end hosts, where RADLAN-VRRP SNMP monitoring confirms master/backup role assignment is behaving as expected.

IPNetwork Monitor allows you to monitor SNMP objects defined in RADLAN-VRRP. 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.

Supported Devices

Marvell (formerly RADLAN) Layer 3 switches/routers

Monitoring Examples

An administrator would poll rlVrrpv3OperationsTable, keyed by virtual router ID, to check rlVrrpv3OperationsMasterPriority and rlVrrpv3OperationsAdminState, confirming which device currently holds Master status, and would watch rlVrrpv3OperationsMasterDownInterval/rlVrrpv3OperationsSkewTime to verify failover timing is as configured. An unexpected change in the active master (visible via rlVrrpv3OperationsPrimaryIpAddrState) would signal a failover event, worth investigating for root cause.

What Can Be Monitored

VRRP master/backup role
VRRP priority
VRRP administrative state
master advertisement/down interval
virtual router associated IP addresses

Imported Objects

From IF-MIB

InterfaceIndexOrZero

From INET-ADDRESS-MIB

InetAddress
InetAddressType

From RADLAN-IP

ipSpec

MODULE-IDENTITY

From SNMPv2-SMI

Counter32
Integer32
MODULE-IDENTITY
NOTIFICATION-TYPE
OBJECT-TYPE
Unsigned32
mib-2

From SNMPv2-TC

DisplayString
RowStatus
TimeInterval

How to Use in IPNetwork Monitor

Example using rlVrrpv3CountersChecksumErrors OID:

Select a Marvell (formerly RADLAN) Layer 3 switches/router (VRRPv3 gateway redundancy) as the target host to create a monitor — the SNMP service should be up and running on it. Click New Monitor, then check SNMP Custom on the Favorites tab, click Next, and confirm the host. On the next page, click Select... to open the built-in SNMP MIB Browser and type rlVrrpv3CountersChecksumErrors into the Find box to locate it in the OID tree, selecting the specific row/instance you want to monitor since this is a table column, then select it and click OK. The total number of checksum errors received on this interface. On the monitor's Main parameters page you can set the target's SNMP port (default 161), credentials, polling interval, and other settings — see the SNMP Monitor help for details. On the State conditions and Alerting tabs, configure when the monitor should change state and trigger an alert; since this is a Counter32-type OID, Value bounds is the most useful condition here — trigger an alert if the counter increases between polls, since a rising count of errors, failures, or discards often points to a real underlying problem. Click Finish to create the monitor; you can adjust any parameter later.

OIDs

OID symbolic	OID numeric	Type	Access	Description
rlVrrp	1.3.6.1.4.1.89.26.26			The private MIB module definition for VRRPv3 MIB.
rlVrrpv3OperationsTable	1.3.6.1.4.1.89.26.26.1		not-accessible	This table is parallel to vrrpv3OperationsTable, and is used to change VRRP on interface working version, description and display several statuses. It contains private objects.
rlVrrpv3OperationsEntry	1.3.6.1.4.1.89.26.26.1.1		not-accessible	An operation entry mapping for a particular interface.
IP rlVrrpv3OperationsDefaultPrimaryIpAddr	1.3.6.1.4.1.89.26.26.1.1.1	InetAddress	read-only	In the case where there are more than one IP Address (associated IP addresses) for a given `ifIndex', this object is used to specify the IP address that will become the vrrpv3OperationsMasterIpAddr', should the virtual router transition from backup state to master and no vrrpv3OperationsDefaultPrimaryIpAddr was configured.
INT rlVrrpv3OperationsPrimaryIpAddrState	1.3.6.1.4.1.89.26.26.1.1.2	INTEGER	read-only	This object represents enabled/disabled state of user configured primary address of the virtual router.
STR rlVrrpv3OperationsVrDescription	1.3.6.1.4.1.89.26.26.1.1.3	DisplayString	read-write	The description of the VRRP virtual router.
INT rlVrrpv3OperationsAdminState	1.3.6.1.4.1.89.26.26.1.1.4	INTEGER	read-write	This object will enable/disable the virtual router function. Setting the value to `up', will transition the state of the virtual router from `initialize' to `backup' or `master', depending on the value of `vrrpOperPriority'. Setting the value to `down', will transition the router from `master' or `backup' to `initialize'. State transitions may not be immediate; they sometimes depend on other factors, such as the interface (IF) state.
INT rlVrrpv3OperationsVrrpVersion	1.3.6.1.4.1.89.26.26.1.1.5	INTEGER	read-write	Current VRRP virtual router version it is working with.
U32 rlVrrpv3OperationsMasterPriority	1.3.6.1.4.1.89.26.26.1.1.6	Unsigned32	read-only	This object specifies the priority which is used by master router.
NUM rlVrrpv3OperationsMasterAdvInterval	1.3.6.1.4.1.89.26.26.1.1.7	TimeInterval	read-only	The time interval, in centiseconds, which is used by master router for sending advertisement messages.
NUM rlVrrpv3OperationsMasterDownInterval	1.3.6.1.4.1.89.26.26.1.1.8	TimeInterval	read-only	Time interval for Backup to declare Master down (centiseconds).
NUM rlVrrpv3OperationsSkewTime	1.3.6.1.4.1.89.26.26.1.1.9	TimeInterval	read-only	Time to skew Master_Down_Interval in milliseconds.
rlVrrpv3AssociatedIpAddrTable	1.3.6.1.4.1.89.26.26.2		not-accessible	This table is parallel to vrrpv3AssociatedIpAddrTable, and is used to display address statuses. It contains private objects.
rlVrrpv3AssociatedIpAddrEntry	1.3.6.1.4.1.89.26.26.2.1		not-accessible	An entry in the table contains an IP address that is associated with a virtual router
INT rlVrrpv3AssociatedIpAddrState	1.3.6.1.4.1.89.26.26.2.1.1	INTEGER	read-only	This object represents state of the assosiated IP address, backed up by current virtual router.
rlVrrpv3CountersTable	1.3.6.1.4.1.89.26.26.3		not-accessible	Table of virtual router statistics.
rlVrrpv3CountersEntry	1.3.6.1.4.1.89.26.26.3.1		not-accessible	An entry in the table, containing statistics information about a given virtual router.
NUM rlVrrpv3CountersIfIndex	1.3.6.1.4.1.89.26.26.3.1.1	InterfaceIndexOrZero	not-accessible	Interface index
C32 rlVrrpv3CountersChecksumErrorsEx	1.3.6.1.4.1.89.26.26.3.1.2	Counter32	read-only	The total number of checksum errors received on this interface. Counter is only valid as long as there is a VRRP router defined on this interface.
C32 rlVrrpv3CountersRcvdPacketsLength	1.3.6.1.4.1.89.26.26.3.1.3	Counter32	read-only	The total number of packet length errors received on this interface. Counter is only valid as long as there is a VRRP router defined on this interface.
C32 rlVrrpv3CountersIpTtlErrors	1.3.6.1.4.1.89.26.26.3.1.4	Counter32	read-only	The total number of TTL errors received on this interface. Counter is only valid as long as there is a VRRP router defined on this interface.
C32 rlVrrpv3CountersRcvdInvalidTypePackets	1.3.6.1.4.1.89.26.26.3.1.5	Counter32	read-only	The total number of invalid VRRP packet type errors received on this interface. Counter is only valid as long as there is a VRRP router defined on this interface.
C32 rlVrrpv3CountersRcvdInvalidVrrpId	1.3.6.1.4.1.89.26.26.3.1.6	Counter32	read-only	The total number of invalid VRRP id errors received on this interface. Counter is only valid as long as there is a VRRP router defined on this interface.
C32 rlVrrpv3CountersProtoErrors	1.3.6.1.4.1.89.26.26.3.1.7	Counter32	read-only	The total number of invalid VRRP protocol errors received on this interface. Counter is only valid as long as there is a VRRP router defined on this interface.
C32 rlVrrpv3CountersAddressListErrors	1.3.6.1.4.1.89.26.26.3.1.8	Counter32	read-only	The total number of invalid IP address list errors received on this interface. Counter is only valid as long as there is a VRRP router defined on this interface.
C32 rlVrrpv3CountersAdvIntervalErrors	1.3.6.1.4.1.89.26.26.3.1.9	Counter32	read-only	The total number of invalid advertisement interval errors received on this interface. Counter is only valid as long as there is a VRRP router defined on this interface.
C32 rlVrrpv3CountersAuthErrors	1.3.6.1.4.1.89.26.26.3.1.10	Counter32	read-only	The total number of authentication errors received on this interface. Counter is only valid as long as there is a VRRP router defined on this interface.
ROW rlVrrpv3CountersRowStatus	1.3.6.1.4.1.89.26.26.3.1.11	RowStatus	read-write	Row status of the entry. Used for clearing table by setting.

RFC description

Marvell VRRP version 3 private MIB for managing virtual router redundancy and failover operations.

Start monitoring Marvell (formerly RADLAN) Layer 3 switches/routers (VRRPv3 gateway redundancy) with a free 30-day trial of IPNetwork Monitor. Import MIBs, browse SNMP OIDs, create custom SNMP monitors, configure alerts, and monitor any SNMP-enabled network device from a single console.

Download RADLAN-VRRP