EXTREME-ESRP-MIB

All MIBs › EXTREME-ESRP-MIB

Organization: Extreme Networks, Inc.

Last Updated: 2000-07-24

Category: Device Management, Vendor: Extreme Networks

Description: Manages the Extreme Standby Router Protocol (ESRP) on Extreme Networks devices, providing Layer 2/3 redundancy and failover between switches.

Start monitoring vendor-neutral, standards-based MIB, any SNMPv3-capable network device (SNMP engine identity/boot/clock status) 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.

What Is EXTREME-ESRP-MIB?

EXTREME-ESRP-MIB is a vendor-specific MIB from Extreme Networks that manages the Extreme Standby Router Protocol (ESRP), a proprietary Layer 2/3 redundancy protocol providing gateway failover between switches. It exposes configuration and state data about ESRP domains/groups, including operational role (master/backup) and tracked ports/VLANs used to determine failover triggers. Opening the EXTREME-ESRP-MIB MIB Browser view lets an operator see the current master/backup role and tracked port/VLAN state at a glance. In monitoring terms it is used chiefly to track software-level redundancy status - which switch currently holds the master role, whether a failover has occurred, and the health of tracked interfaces - rather than physical hardware sensors. It builds on standard interface/VLAN concepts from IF-MIB and Bridge-MIB for the ports/VLANs it tracks, though the ESRP objects themselves are Extreme's own proprietary extension. It is deployed in Extreme Networks switch stacks configured for high-availability Layer 2 gateway redundancy in campus and enterprise networks.

IPNetwork Monitor allows you to monitor SNMP objects defined in EXTREME-ESRP-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

Extreme Networks 5420 Series Universal Switch — stackable edge switch that can run Switch Engine (EXOS), the current OS lineage where ESRP is still documented/supported

Monitoring Examples

No object or table names were supplied in the source data for this module, so specific OIDs cannot be cited here; in practice an administrator would poll the ESRP group/domain state objects to determine which switch currently holds the master role for a given VLAN and watch for state transitions indicating a failover event, which typically correlates with interface flapping visible in standard IF-MIB counters.

What Can Be Monitored

ESRP domain/group master-backup role
tracked port/VLAN state
failover/state transition events

Imported Objects

From EXTREME-BASE-MIB

ExtremeGenAddr
PortList
extremeAgent	OBJECT-IDENTITY

From RFC1213-MIB

DisplayString

From SNMPv2-SMI

Counter32
Integer32
IpAddress
MODULE-IDENTITY
NOTIFICATION-TYPE
OBJECT-IDENTITY
OBJECT-TYPE

From SNMPv2-TC

MacAddress
RowStatus
TruthValue

How to Use in IPNetwork Monitor

Example using extremeEsrpActivePorts OID:

Select an Extreme Networks 5420 Series Universal Switch 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 extremeEsrpActivePorts 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. It reports the number of physical ports currently members of this VLAN under ESRP (Extreme Standby Router Protocol). 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 INTEGER-type OID, Value bounds is the most useful condition here — trigger an alert if the port count changes unexpectedly, which would indicate a VLAN membership or link-state change. Click Finish to create the monitor; you can adjust any parameter later.

OIDs

OID symbolic	OID numeric	Type	Access	Description
extremeEsrp	1.3.6.1.4.1.1916.1.12			Extreme Standby Routing Protocol information
INT extremeEsrpActivePortsEx	1.3.6.1.4.1.1916.1.12.2.1.9	INTEGER	read-only	The number of physical ports that are in this vlan.
INT extremeEsrpElectionAlgorithm	1.3.6.1.4.1.1916.1.12.2.1.7	INTEGER	read-create	The algorithm to use in selecting the esrp master.
extremeEsrpEntry	1.3.6.1.4.1.1916.1.12.2.1		not-accessible	An individual entry of this table contains ESRP information for a given vlan belonging to a given ESRP group.
INT extremeEsrpGroup	1.3.6.1.4.1.1916.1.12.2.1.2	INTEGER	accessible-for-notify	Indicates a gateway addresses this router backs up. Any gateway address can be backed up by a group of routers with one as the master and the others as backup. An instance of this object refers to one such group. Only the default group 1 is supported currently.
INT extremeEsrpHelloTimer	1.3.6.1.4.1.1916.1.12.2.1.8	INTEGER	read-create	The time interval for exchanging hello messages.
INT extremeEsrpInternalActivePorts	1.3.6.1.4.1.1916.1.12.2.1.15	INTEGER	read-only	The number of internal physical ports that are in this vlan.
INT extremeEsrpNeighborActivePorts	1.3.6.1.4.1.1916.1.12.3.1.8	INTEGER	read-only	The number of physical ports that are in present in the neighbor's vlan.
INT extremeEsrpNeighborElectionAlgorithm	1.3.6.1.4.1.1916.1.12.3.1.6	INTEGER	read-only	The algorithm to use in selecting the esrp master reported by this esrp neighbor.
extremeEsrpNeighborEntry	1.3.6.1.4.1.1916.1.12.3.1		not-accessible	Each individual entry of this table contains ESRP information of one ESRP neighbor.
INT extremeEsrpNeighborGroup	1.3.6.1.4.1.1916.1.12.3.1.2	INTEGER	not-accessible	Indicates a gateway addresses this router backs up. Any gateway address can be backed up by a group of routers with one as the master and the others as backup. An instance of this object refers to one such group. Note that this object is defined in addition to extremeEsrpGroup. Whereas the extremeEsrpGroup refers to the group information advertised by this host the extremeEsrpNeighborGroup refers to the group information reported by the neighbor. There might be a conflict. Only the default group 1 is supported currently.
INT extremeEsrpNeighborHelloTimer	1.3.6.1.4.1.1916.1.12.3.1.7	INTEGER	read-only	The time interval for exchanging hello messages configured at this esrp neighbor.
INT extremeEsrpNeighborInternalActivePorts	1.3.6.1.4.1.1916.1.12.3.1.11	INTEGER	read-only	The number of internal ports that are in present in the neighbor.
MAC extremeEsrpNeighborMacAddress	1.3.6.1.4.1.1916.1.12.3.1.1	MacAddress	not-accessible	Mac address of other esrp routers that backup this gateway address.
EXT extremeEsrpNeighborNetAddress	1.3.6.1.4.1.1916.1.12.3.1.3	ExtremeGenAddr	read-only	The network layer address of this router. This may be null if no address was assigned.
INT extremeEsrpNeighborPriority	1.3.6.1.4.1.1916.1.12.3.1.5	INTEGER	read-only	The priority reported by this esrp neighbor.
INT extremeEsrpNeighborState	1.3.6.1.4.1.1916.1.12.3.1.4	INTEGER	read-only	State of the esrp neighbor.
extremeEsrpNeighborTable	1.3.6.1.4.1.1916.1.12.3		not-accessible	This table contains ESRP information received from the ESRP neighbors of this device.
INT extremeEsrpNeighborTrackedActivePorts	1.3.6.1.4.1.1916.1.12.3.1.9	INTEGER	read-only	The total number of ports belonging to the vlans that are tracked by this esrp neighbor.
INT extremeEsrpNeighborTrackedIpRoutes	1.3.6.1.4.1.1916.1.12.3.1.10	INTEGER	read-only	The total number of ip routes that are tracked by this esrp neighbor.
EXT extremeEsrpNetAddress	1.3.6.1.4.1.1916.1.12.2.1.4	ExtremeGenAddr	read-only	The IP/IPX address of this vlan. This entry is null if no address has been assigned to the vlan.
INT extremeEsrpNumTransitionsToMaster	1.3.6.1.4.1.1916.1.12.2.1.13	INTEGER	read-only	The total number of transitions to Master by this esrp router.
INT extremeEsrpNumTransitionsToSlave	1.3.6.1.4.1.1916.1.12.2.1.14	INTEGER	read-only	The total number of transitions to Slave by this esrp router.
extremeEsrpPortEntry	1.3.6.1.4.1.1916.1.12.6.1		not-accessible	An entry in the table of ESRP port information.
INT extremeEsrpPortIfIndex	1.3.6.1.4.1.1916.1.12.6.1.1	INTEGER	not-accessible	The ifIndex of the physical port that is part of the vlan specified by the extremeEsrpVlanIfIndex.
T/F extremeEsrpPortState	1.3.6.1.4.1.1916.1.12.6.1.2	TruthValue	read-write	Indicates if esrp is enabled or disabled on this port.
extremeEsrpPortTable	1.3.6.1.4.1.1916.1.12.6		not-accessible	A table containing information on the ports belonging to the ESRP vlans on this router.
INT extremeEsrpPriority	1.3.6.1.4.1.1916.1.12.2.1.6	INTEGER	read-create	The priority which would be advertised by this router for determining the esrp master.
ROW extremeEsrpRowStatus	1.3.6.1.4.1.1916.1.12.2.1.3	RowStatus	read-create	The status of this entry.
INT extremeEsrpState	1.3.6.1.4.1.1916.1.12.2.1.5	INTEGER	read-only	This indicates the ESRP state of this ESRP router.
extremeEsrpTable	1.3.6.1.4.1.1916.1.12.2		not-accessible	This table contains ESRP information for this device.
INT extremeEsrpTrackedActivePorts	1.3.6.1.4.1.1916.1.12.2.1.10	INTEGER	read-only	The total number of ports belonging to the vlans that are tracked by this esrp router.
INT extremeEsrpTrackedIpRoutes	1.3.6.1.4.1.1916.1.12.2.1.11	INTEGER	read-only	The total number of ip routes that are tracked by this esrp router.
INT extremeEsrpTrackedPings	1.3.6.1.4.1.1916.1.12.2.1.12	INTEGER	read-only	The total number of ip addresses that are ping-tracked by this esrp router.
extremeEsrpTrackIpRouteEntry	1.3.6.1.4.1.1916.1.12.5.1		not-accessible	An entry in the table of tracked IP routes information.
IP extremeEsrpTrackIpRouteIpAddress	1.3.6.1.4.1.1916.1.12.5.1.1	IpAddress	not-accessible	The ifIndex of the tracked vlan.
IP extremeEsrpTrackIpRouteNetMask	1.3.6.1.4.1.1916.1.12.5.1.2	IpAddress	not-accessible	The ifIndex of the tracked vlan.
ROW extremeEsrpTrackIpRouteRowStatus	1.3.6.1.4.1.1916.1.12.5.1.3	RowStatus	read-create	The status of this entry.
extremeEsrpTrackIpRouteTable	1.3.6.1.4.1.1916.1.12.5		not-accessible	A table containing information on the IP routes tracked by this ESRP router.
extremeEsrpTrackVlanEntry	1.3.6.1.4.1.1916.1.12.4.1		not-accessible	An entry in the table of tracked VLAN information.
INT extremeEsrpTrackVlanIfIndex	1.3.6.1.4.1.1916.1.12.4.1.1	INTEGER	not-accessible	The ifIndex of the tracked vlan.
ROW extremeEsrpTrackVlanRowStatus	1.3.6.1.4.1.1916.1.12.4.1.2	RowStatus	read-create	The status of this entry.
extremeEsrpTrackVlanTable	1.3.6.1.4.1.1916.1.12.4		not-accessible	A table containing information on the VLANs tracked by this ESRP router.
INT extremeEsrpVlanIfIndex	1.3.6.1.4.1.1916.1.12.2.1.1	INTEGER	accessible-for-notify	Any index to this table has a value that is the same as the ifIndex of one of the vlans present in the ifTable.

RFC description

Extreme Networks Standby Routing Protocol management providing ESRP status and configuration information.

Start monitoring Extreme Networks switch stack (Extreme Standby Router Protocol 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 EXTREME-ESRP-MIB