CISCO-SERVICE-CONTROL-LINK-MIB

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Organization: Cisco Systems, Inc.

Last Updated: 2007-06-26

Category: Cisco Devices, Quality of Service

Description: Monitors subscriber link status and traffic statistics on Cisco SCE Service Control Engine platforms.

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What Is CISCO-SERVICE-CONTROL-LINK-MIB?

This Cisco MIB manages the link abstraction on the Cisco Service Control Engine (SCE) platform, a deep-packet-inspection/subscriber-management appliance, where a 'link' joins subscriber-side port(s) to network-side port(s) for traffic policy enforcement. It exposes configuration data (admin mode on active/failure conditions, reflection settings) and operational-state data (operational mode, reflection state) per link, along with notifications when link state changes. Its monitoring value is hardware/software link-health status: cscLinkOperMode reveals whether a link is actively forwarding, bypassing, or failed-over, and the admin-mode-on-failure setting shows what behavior is configured for a failure scenario, both critical for confirming subscriber traffic is being processed rather than silently bypassed. It is part of the broader CISCO-SERVICE-CONTROL MIB family and depends on that suite's shared port/subscriber-side conventions. It's typically deployed in service-provider broadband networks running Cisco SCE platforms for subscriber traffic policy assurance. Engineers can download the CISCO-SERVICE-CONTROL-LINK-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in CISCO-SERVICE-CONTROL-LINK-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 Service Control Engine (SCE) platform

Monitoring Examples

An admin would poll cscLinkStatusTable, indexed by cscLinkSubscriberSidePortIndex and cscLinkNetworkSidePortIndex, to check cscLinkOperMode and confirm the link is in active forwarding rather than bypass mode. cscLinkAdminModeOnFailure shows what the link is configured to do if the SCE platform fails (e.g., fail-open to bypass), which matters for outage-impact planning, while cscLinkAdminReflectionEnable and cscLinkAdminReflectionState reveal whether traffic reflection (used for certain inline topologies) is active. A ciscoSCLinkMIBNotifs trap tied to cscLinkNotifsEnabled would alert the operator the moment a link's operational mode changes unexpectedly.

What Can Be Monitored

link operational mode
admin mode on active/failure
reflection enable/state
subscriber-side port index
network-side port index

Imported Objects

From CISCO-SMI

ciscoMgmt

OBJECT-IDENTITY

From CISCO-TC

EntPhysicalIndexOrZero

From ENTITY-MIB

PhysicalIndex
entPhysicalIndex	OBJECT-TYPE

From SNMPv2-CONF

MODULE-COMPLIANCE
NOTIFICATION-GROUP
OBJECT-GROUP

From SNMPv2-SMI

MODULE-IDENTITY
NOTIFICATION-TYPE
OBJECT-TYPE

From SNMPv2-TC

TEXTUAL-CONVENTION
TruthValue

OIDs

OID symbolic	OID numeric	Type	Access	Description
ciscoServiceControlLinkMIB	1.3.6.1.4.1.9.9.631			This MIB module provides information about the status and configuration of links used by service control entities. The link on a service control entity is a contained entity that joins subscriber side port(s) to network side port(s).
ciscoSCLinkMIBNotifs	1.3.6.1.4.1.9.9.631.0
NTF ciscoServiceControlLinkModeChange	1.3.6.1.4.1.9.9.631.0.1			This notification signifies that the agent entity has detected that the cscLinkOperMode object in this MIB has changed.
ciscoSCLinkMIBObjects	1.3.6.1.4.1.9.9.631.1
T/F cscLinkNotifsEnabled	1.3.6.1.4.1.9.9.631.1.1	TruthValue	read-write	This object controls whether the cServiceLinkModeChange notification is generated. A 'false' value will prevent notifications from being generated.
cscLinkStatusTable	1.3.6.1.4.1.9.9.631.1.2		not-accessible	This table provides information regarding the configuration and status of the links that pass through the service control entity and carry inband traffic. The link is an entity and has an entry in the entPhysicalTable of the ENTITY-MIB with entPhysicalClass of 'other' and is contained in entity 'chassis' or 'module'. A link entity contains entities from the entPhysicalTable of entPhysicalClass 'port'. The number of entries in this table is determined by the number of service control entities in the entPhysicalTable and the number of links supported by each. Each Link entity contains at least a subscriber side port entity and a network side port entity.
cscLinkStatusEntry	1.3.6.1.4.1.9.9.631.1.2.1		not-accessible	An entry (conceptual row) in the cscLinkStatusTable created by the agent for every link entity contained in the service control entity after initilization. entPhysicalIndex is index for this table which represents entities of 'other' entPhysicalClass.
CSC cscLinkAdminModeOnActive	1.3.6.1.4.1.9.9.631.1.2.1.1	CsceLinkModeType	read-write	This object indicates the desired mode of the link when the entity that contains this link has the operating status of active and the entity is not in boot or failure state.
CSC cscLinkAdminModeOnFailure	1.3.6.1.4.1.9.9.631.1.2.1.2	CsceLinkModeType	read-write	This object indicates the desired mode of the link when the entity that contains this link has the operational status of failure.
CSC cscLinkOperMode	1.3.6.1.4.1.9.9.631.1.2.1.3	CsceLinkModeType	read-only	This object reflects the operational mode of the link.
INT cscLinkAdminReflectionEnable	1.3.6.1.4.1.9.9.631.1.2.1.4	INTEGER	read-write	This object indicates how the failure status of the physical link on one port should be reflected to the other port(s) of the link. 'reflectionEnabled' : Failure is reflected on the other port of the link. 'reflectionOnAllPortsEnabled': Failure of Physical Link is reflected on all other ports on all links. 'reflectionDisabled' : Port status is not reflected on the link.
ENT cscLinkSubscriberSidePortIndex	1.3.6.1.4.1.9.9.631.1.2.1.5	EntPhysicalIndexOrZero	read-only	This object specifies the entPhysicalIndex value that uniquely identifies the port entity contained in this link entity in the entPhysicalTable. This port entity is connected to the subscriber side.
ENT cscLinkNetworkSidePortIndex	1.3.6.1.4.1.9.9.631.1.2.1.6	EntPhysicalIndexOrZero	read-only	This object specifies the entPhysicalIndex value that uniquely identifies the port entity contained in this link entity in the entPhysicalTable. This port entity is connected to the network side.
INT cscLinkAdminReflectionState	1.3.6.1.4.1.9.9.631.1.2.1.7	INTEGER	read-write	This object indicates how the link propagates the failure state between the ports on each end of the link. 'noLinkReflection' : No failure is currently being reflected. 'reflectingFailureToNetwork' : Link failure on subscriber side is reflected to the network side. 'reflectingFailureToSubscriber': Link failure on network side is reflected to the subscriber side. 'reflectingFailureToBoth' : Failure reflected to both sides of the link.
ciscoSCLinkMIBConform	1.3.6.1.4.1.9.9.631.2
ciscoSCLinkMIBCompliances	1.3.6.1.4.1.9.9.631.2.1
cServiceLinkMIBCompliance	1.3.6.1.4.1.9.9.631.2.1.1			The compliance statement for SNMP Agents which implement this MIB.
ciscoSCLinkMIBObjectGroups	1.3.6.1.4.1.9.9.631.2.2
cSCLinkMIBObjectGroup	1.3.6.1.4.1.9.9.631.2.2.1			Collection of objects for link status.
cSCLinkMIBNotificationGroup	1.3.6.1.4.1.9.9.631.2.2.2			This group contains notifications of this MIB.
cSCLinkNotifControlGroup	1.3.6.1.4.1.9.9.631.2.2.3			This is a collection of objects that controls the enable/disable of notifications defined in this MIB.

RFC description

Manages service control entity links that connect subscriber-side and network-side ports for traffic forwarding and service processing.

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Download CISCO-SERVICE-CONTROL-LINK-MIB

What Is CISCO-SERVICE-CONTROL-LINK-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description