RC-VRF-MIB

All MIBs › RC-VRF-MIB

Organization: Nortel Networks

Last Updated: 2008-09-09

Category: Nortel Enterprise Data

Description: Manages VRF instance configuration, interface assignment, and routing table separation on Nortel Ethernet Routing Switch.

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What Is RC-VRF-MIB?

RC-VRF-MIB is a Nortel (Ethernet Routing Switch / Passport 'Rapid City' family) MIB for managing Virtual Router and VRF (Virtual Routing and Forwarding) instances, including VRF/VPN table sizing, interface assignment, and route separation. It exposes configuration objects for VRF creation and identification, import/export route target lists for VPN route leaking, and service label allocation options, along with notification objects for VRF-related events. Its monitoring value is centered on VPN/VRF configuration integrity and capacity: administrators track rcVrfIpVpnTableSize against the number of configured VRFs to watch for capacity exhaustion, and monitor rcVrfIpVpnStatus/rcVrfIpVpnRowStatus to confirm a VRF is active and correctly provisioned. It complements standard IP routing and MPLS VPN MIBs since VRFs are used to segregate routing tables for multi-tenant or MPLS L3VPN services. It is deployed on Nortel/Avaya Ethernet Routing Switches acting as provider-edge or virtual-router-capable devices in segmented enterprise or carrier networks, and administrators typically load RC-VRF-MIB into a MIB Browser to review VRF table sizing and route target configuration before compiling it into their NMS.

IPNetwork Monitor allows you to monitor SNMP objects defined in RC-VRF-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.

Supported Devices

Nortel/Avaya Ethernet Routing Switch, Passport/Rapid-City family (VRF/virtual-router configuration)

Monitoring Examples

An operator would compare rcVrfIpVpnTableSize against the count of rows in rcVrfIpVpnTable to see how close the switch is to its maximum supported VRF count. Checking rcVrfIpVpnStatus and rcVrfIpVpnRowStatus per entry confirms whether a given VRF (indexed by rcVrfIpVpnVrfId) is active, and inspecting rcVrfIpVpnImportRTList/rcVrfIpVpnExportRTList reveals which route targets are being imported or exported, useful for diagnosing why routes aren't leaking between VRFs as expected. rcVrfNotifications would alert an operator to VRF state changes without needing to poll continuously.

What Can Be Monitored

configured VRF count vs table size limit
VRF operational/row status
import/export route target lists
service label allocation option
VRF-related notifications

Imported Objects

From IF-MIB

InterfaceIndex

From INET-ADDRESS-MIB

InetAddress
InetAddressType

From RAPID-CITY

EnableValue
IdList
rcVrf	OBJECT-IDENTITY

From SNMP-FRAMEWORK-MIB

SnmpAdminString

From SNMPv2-CONF

MODULE-COMPLIANCE
NOTIFICATION-GROUP
OBJECT-GROUP

From SNMPv2-SMI

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

From SNMPv2-TC

DisplayString
RowStatus
TEXTUAL-CONVENTION
TruthValue

How to Use in IPNetwork Monitor

Example using rcVrfIpVpnTableSize OID:

Select an Extreme Networks VSP 4900 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 rcVrfIpVpnTableSize into the Find box to locate it in the OID tree, then select it and click OK. It reports the current number of entries in the VRF IP-VPN table. 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 an Integer32-type OID, Value bounds is the most useful condition here — trigger an alert if the table size changes unexpectedly, which can indicate an unplanned VRF/VPN configuration change or a route-scale problem. Click Finish to create the monitor; you can adjust any parameter later.

See also: rcVrfStatUpTime

OIDs

OID symbolic	OID numeric	Type	Access	Description
U32 rcVrfActiveVRFs	1.3.6.1.4.1.2272.1.203.1.1.2.1.2	Unsigned32	read-only	The number of VRFs that are active on the network element. These are VRFs for which the rcVrfStatOperStatus = up(1)
INT rcVrfAdminStatus	1.3.6.1.4.1.2272.1.203.1.1.1.2.1.7	INTEGER	read-create	The administrative state of the Virtual Router.
rcVrfConfig	1.3.6.1.4.1.2272.1.203.1.1.1
rcVrfConfigEntry	1.3.6.1.4.1.2272.1.203.1.1.1.2.1		not-accessible	The entries in this table can be added/deleted using the rcVrfRowStatus.
OID rcVrfConfigNextAvailableVrfId	1.3.6.1.4.1.2272.1.203.1.1.1.1.1	VrfIdentifier	read-only	The next available Virtual Router Id (index). This object provides a hint for the rcVrfId value to use when administratively creating a new rcVrfConfigEntry. A GET of this object returns the next available rcVrfId value to be used to create an entry in the associated rcVrfConfigTable; or zero, if no valid rcVrfId value is available. A value of zero(0) indicates that it is not possible to create a new rcVrfConfigEntry. This object also returns a value of zero when it is the lexicographic successor of a varbind presented in an SNMP GETNEXT or GETBULK request, for which circumstance it is assumed that ifIndex allocation is unintended. Successive GETs will typically return different values, thus avoiding collisions among cooperating management clients seeking to create table entries simultaneously. Unless specified otherwise by its MAX-ACCESS and DESCRIPTION clauses, an object of this type is read-only, and a SET of such an object returns a notWritable error.
rcVrfConfigScalars	1.3.6.1.4.1.2272.1.203.1.1.1.1
rcVrfConfigTable	1.3.6.1.4.1.2272.1.203.1.1.1.2		not-accessible	This table is for creating the new Virtual Routers.
U32 rcVrfConfiguredVRFs	1.3.6.1.4.1.2272.1.203.1.1.2.1.1	Unsigned32	read-only	The number of VRFs configured on this network element.
STR rcVrfContextName	1.3.6.1.4.1.2272.1.203.1.1.1.2.1.4	SnmpAdminString	read-create	The SNMPv2 Community String or SNMPv3 contextName denotes the VRF 'context' and is used to logically separate the MIB module management.
OID rcVrfId	1.3.6.1.4.1.2272.1.203.1.1.1.2.1.1	VrfIdentifier	not-accessible	The unique id of this virtual router instance. A Virtual Router cannot not be created with rcVrfId = 0. VRFID 0 is reserved for the Administrative VRF.
IDL rcVrfIpVpnExportRTList	1.3.6.1.4.1.2272.1.203.1.1.4.1.4	IdList	read-create	The Export RT list is a list of all the route-targets attached to a particular vrf in the export mode.
IDL rcVrfIpVpnImportRTList	1.3.6.1.4.1.2272.1.203.1.1.4.1.3	IdList	read-create	The Import RT list is a list of all the route-targets attached to a particular vrf behaving in the import mode.
ROW rcVrfIpVpnRowStatus	1.3.6.1.4.1.2272.1.203.1.1.4.1.6	RowStatus	read-create	RowStatus for the Vpn Entry.
ENA rcVrfIpVpnStatus	1.3.6.1.4.1.2272.1.203.1.1.4.1.2	EnableValue	read-create	The status of IpVpn.
INT rcVrfIpVpnSvcLblAllocOpt	1.3.6.1.4.1.2272.1.203.1.1.4.1.5	INTEGER	read-create	The service label allocation option for the ipvpn
rcVrfIpVpnTable	1.3.6.1.4.1.2272.1.203.1.1.4		not-accessible	Table required to configure vpn under ip.
rcVrfIpVpnTableEntry	1.3.6.1.4.1.2272.1.203.1.1.4.1		not-accessible	Entries in this table are per rcVrfId.
I32 rcVrfIpVpnTableSizeEx	1.3.6.1.4.1.2272.1.203.1.1.3	Integer32	read-only	Size of Vrf IpVpn Table
OID rcVrfIpVpnVrfId	1.3.6.1.4.1.2272.1.203.1.1.4.1.1	VrfIdentifier	not-accessible	The VrfId serves as the Index for the rcIpVpnVrfTable and also for the rcIpVpnRouteDistinguisherTable. It allows to connect to the vrf table to obtain other attributes like the vrf name, rcVrfMaxRoutesTrapEnable etc.
U32 rcVrfMaxRoutes	1.3.6.1.4.1.2272.1.203.1.1.1.2.1.6	Unsigned32	read-create	This object specifies the maximum number of routes that this VRF can support. The default value is 10000.
T/F rcVrfMaxRoutesTrapEnable	1.3.6.1.4.1.2272.1.203.1.1.1.2.1.10	TruthValue	read-create	This objects is used to enable the generation of the VRF Max Routes Exceeded traps. true(1) - VRF Max Routes Exceeded Traps Enabled false(2) - VRF Max Routes Exceeded Traps Disabled
rcVrfMib	1.3.6.1.4.1.2272.1.203.1			The MIB module is the definition of the managed objects for the Virtual Router.
STR rcVrfName	1.3.6.1.4.1.2272.1.203.1.1.1.2.1.3	DisplayString	read-write	The Name of the Virtual Router.
rcVrfNotificationObjects	1.3.6.1.4.1.2272.1.203.1.2
rcVrfNotifications	1.3.6.1.4.1.2272.1.203.1.0
rcVrfObjects	1.3.6.1.4.1.2272.1.203.1.1
INT rcVrfOperStatus	1.3.6.1.4.1.2272.1.203.1.1.2.2.1.4	INTEGER	read-only	The operational status of the Virtual Router.
IP rcVrfRouterAddress	1.3.6.1.4.1.2272.1.203.1.1.2.2.1.7	InetAddress	read-only	Router Address of this VRF. It is derived from one of the interfaces. If loopback interface is present, the loopback interface address can be used. However, loopback interface is optional.
IPt rcVrfRouterAddressType	1.3.6.1.4.1.2272.1.203.1.1.2.2.1.6	InetAddressType	read-only	Router Address Type of this VRF.
ROW rcVrfRowStatus	1.3.6.1.4.1.2272.1.203.1.1.1.2.1.2	RowStatus	read-create	The status column has three defined values: - `active', which indicates that the conceptual row is available for use by the managed device; - `createAndGo', which is supplied by a management station wishing to create a new instance of a conceptual row and to have its status automatically set to active, making it available for use by the managed device; - `destroy', which is supplied by a management station wishing to delete all of the instances associated with an existing conceptual row.
VRF rcVrfRpStatus	1.3.6.1.4.1.2272.1.203.1.1.2.2.1.5	VrfRpTriggerBitCode	read-only	This object represents the status of Routing Protocols on this VRF corresponding to the list of RP specified in rcVrfRpTrigger. The BITS represent an Action-code that specifies the status of the RPs. The status are: initiated (1) or shutdown (0). Initiated status is indicated when the respective BIT value is 1 and indicates shutdown when the respective BIT value is 0. Bits 0-3 may appear in any combination to indicate that RPs may be enabled and disabled independently or that multiple RP are acted on simultaneously.
VRF rcVrfRpTrigger	1.3.6.1.4.1.2272.1.203.1.1.1.2.1.9	VrfRpTriggerBitCode	read-create	This object represents Routing Protocol (RP) Triggers on a Virtual Router and it meant to be used to initiate or shutdown routing protocols on a VRF. Multiple RPs can be acted on simultaneously. Also, individual RPs can be brought up in steps, which should not affect the RPs that were running. The BITS represent an Action-code that specifies what action is to be performed for the RPs. The actions are: initiate(1) or shutdown(0). The running status of an RP shall be available in the VRF stats table's rcVrfRpStatus, which has a similar format, but represents the status. Bits 0-3 may be specified in any combination. Individual routing protocols may be enabled and disabled independently. Protocols are enabled by setting the respective BIT and are disabled by resetting the BIT. So, for example, to enable RIP and BGP protocols the rcVrfRpTrigger bits 0 and 2 need to be set, and as encoded as 10100000. All zeros should be interpreted as all protocols disable.
rcVrfStat	1.3.6.1.4.1.2272.1.203.1.1.2
rcVrfStatEntry	1.3.6.1.4.1.2272.1.203.1.1.2.2.1		not-accessible	Entries in this table are per rcVrfId.
U32 rcVrfStatFIBEntries	1.3.6.1.4.1.2272.1.203.1.1.2.2.1.2	Unsigned32	read-only	Total number of FIB Entries for this VRF.
U32 rcVrfStatRouteEntries	1.3.6.1.4.1.2272.1.203.1.1.2.2.1.1	Unsigned32	read-only	Total number of routes for this VRF.
rcVrfStatScalars	1.3.6.1.4.1.2272.1.203.1.1.2.1
rcVrfStatTable	1.3.6.1.4.1.2272.1.203.1.1.2.2		not-accessible	This table contains statistics for the Virtual Router.
TIK rcVrfStatUpTimeEx	1.3.6.1.4.1.2272.1.203.1.1.2.2.1.3	TimeTicks	read-only	The time in (in hundredths of a second) since this VRF entry has been operational.
T/F rcVrfTrapEnable	1.3.6.1.4.1.2272.1.203.1.1.1.2.1.5	TruthValue	read-create	This objects is used to enable the generation of the VrfUp and VrfDown traps. true(1) - VRF Traps Enabled false(2) - VRF Traps Disabled
VPN rcVrfVpnId	1.3.6.1.4.1.2272.1.203.1.1.1.2.1.8	VPNId	read-create	The Virtual Private Network Identifier of the Virtual Router.

RFC description

Virtual Routing and Forwarding (VRF) MIB; manages VRF configuration, routing tables, and forwarding instances.

Start monitoring Nortel/Avaya Ethernet Routing Switch, Passport/Rapid-City family (VRF/virtual-router configuration) 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 RC-VRF-MIB