CISCO-PORT-TRACK-MIB

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Organization: Cisco Systems Inc.

Last Updated: 2005-04-27

Category: Cisco Devices, Network Interfaces, VLAN and Bridging

Description: Manages port tracking to bring down dependent interfaces when tracked uplink ports fail on Cisco switches.

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What Is CISCO-PORT-TRACK-MIB?

CISCO-PORT-TRACK-MIB is a Cisco Systems proprietary MIB configuring the Port-Track feature, which propagates a link failure to dependent ports so that end devices attached to a switch are notified of an indirect (upstream) outage rather than only a directly-attached one. Its port-track table maps a tracked (upstream) port to the linked (dependent) port it should force-shut when the tracked link fails, including VSAN scoping for Fibre Channel deployments, alongside a force-shut status table. As a configuration/hardware-status MIB it lets an administrator confirm which ports are configured to shut down in response to an upstream link failure and check whether that force-shut is currently active. It is deployed on Cisco switches (including MDS Fibre Channel switches) using Port-Track for fast failure propagation. Engineers can download the CISCO-PORT-TRACK-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in CISCO-PORT-TRACK-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

Cisco switches (including MDS Fibre Channel switches) using Port-Track

Monitoring Examples

An administrator checks cptPortTrackTable to confirm a dependent port is correctly mapped to its tracked upstream link, then verifies cptPortForceState during an upstream outage to confirm the dependent port was force-shut as designed.

What Can Be Monitored

tracked-to-dependent port mapping
force-shut status

Imported Objects

From CISCO-SMI

ciscoMgmt

OBJECT-IDENTITY

From CISCO-ST-TC

VsanIndex

From IF-MIB

InterfaceIndex

From SNMPv2-CONF

MODULE-COMPLIANCE
OBJECT-GROUP

From SNMPv2-SMI

MODULE-IDENTITY
OBJECT-TYPE

From SNMPv2-TC

RowStatus
TruthValue

OIDs

OID symbolic	OID numeric	Type	Access	Description
ciscoPortTrackMIB	1.3.6.1.4.1.9.9.437			A MIB to configure the Port-Track feature. When a link goes down, all the services which depend on the link are notified of the outage. The loss of this link may be an indirect failure to the end devices attached to the switch. The concept behind the Port-Track feature is to create a direct failure on the ports connected to end devices on event of such indirect failures. One more ports can be 'tracked' in terms of their operational status. The cptPortTrackTable lets the user associate which port(s) need to be tracked to the ports that will be tracking them. cptPortForceShutTable, lets the user configure the forced-shut mode of the linked-port.
ciscoPortTrackObjects	1.3.6.1.4.1.9.9.437.1
cptConfig	1.3.6.1.4.1.9.9.437.1.1
cptPortTrackTable	1.3.6.1.4.1.9.9.437.1.1.1		not-accessible	A table listing the linked ports and the configurations of their associated tracked ports. The configuration of each tracked port includes its interface index as well as a VSAN index if only one VSAN is to be tracked.
cptPortTrackEntry	1.3.6.1.4.1.9.9.437.1.1.1.1		not-accessible	An entry in the cptPortTrack Table.
NUM cptPortTrackLinkedPort	1.3.6.1.4.1.9.9.437.1.1.1.1.1	InterfaceIndex	not-accessible	The ifIndex of the port that will be tracking the cptPortTrackTrackedPort.
NUM cptPortTrackTrackedPort	1.3.6.1.4.1.9.9.437.1.1.1.1.2	InterfaceIndex	not-accessible	The ifIndex of the port that needs to be tracked.
INT cptPortTrackVsanType	1.3.6.1.4.1.9.9.437.1.1.1.1.3	INTEGER	read-create	This objects denotes whether a single VSAN is being tracked on cptPortTrackTrackedPort or all the VSANs on that port are tracked. If the set to 'singleVsan', then the VSAN that will be tracked will be denoted by the instance of cptPortTrackVsanIndex.
VSA cptPortTrackVsanIndex	1.3.6.1.4.1.9.9.437.1.1.1.1.4	VsanIndex	read-create	Valid only if the instance of cptPortTrackVsanType is 'singleVsan'. If cptPortTrackVsanType is 'allVsans', the instance of this object is irrelevant.
ROW cptPortTrackRowStatus	1.3.6.1.4.1.9.9.437.1.1.1.1.5	RowStatus	read-create	This object is used to create or delete the row. When creating a row, the object cptPortTrackVsanType must be specified. If the value of cptPortTrackVsanType is 'singleVsan' then the object cptPortTrackVsanIndex also must be specified. If the value of cptPortTrackVsanType is 'allVsans', then cptPortTrackVsanIndex should not be specified in the create request.
cptPortForceShutTable	1.3.6.1.4.1.9.9.437.1.1.2		not-accessible	A table to configure the forced-shut state for each linked port.
cptPortForceShutEntry	1.3.6.1.4.1.9.9.437.1.1.2.1		not-accessible	An entry in the cptPortForceShutTable.
T/F cptPortForceState	1.3.6.1.4.1.9.9.437.1.1.2.1.1	TruthValue	read-write	The forced-shut state of the linked port. When all the tracked ports corresponding to cptPortTrackLinkedPort, go down, cptPortTrackLinkedPort is brought down. The cptPortForceState, determines the manner in which this operation is performed. If 'false', cptPortTrackLinkedPort is brought down operationally only and is brought up again as soon as any one of the tracked ports comes up. If 'true', cptPortTrackLinkedPort is brought down administratively as well and the user has to manually bring the port up. i.e. the ifAdminStatus cptPortTrackLinkedPort needs to be set to 'up' by the user.
cptMIBConformance	1.3.6.1.4.1.9.9.437.2
cptMIBCompliances	1.3.6.1.4.1.9.9.437.2.1
cptMIBCompliance	1.3.6.1.4.1.9.9.437.2.1.1			The compliance statement for entities which implement the portrack management mib.
cptMIBGroups	1.3.6.1.4.1.9.9.437.2.2
cptTrackGroup	1.3.6.1.4.1.9.9.437.2.2.1			Object group for the porttrack feature.
cptShutGroup	1.3.6.1.4.1.9.9.437.2.2.2			Object group for the forced-shut feature.

RFC description

Cisco port tracking MIB enabling linkage between tracked ports and linked ports to handle indirect link failures and force shut modes on storage area networks.

Start monitoring Cisco switches (including MDS) using Port-Track 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 CISCO-PORT-TRACK-MIB

What Is CISCO-PORT-TRACK-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description