CISCO-SUBSCRIBER-SESSION-MIB

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsCISCO-SUBSCRIBER-SESSION-MIB

Organization: Cisco Systems, Inc.

Last Updated: 2012-08-08

Category: Cisco Devices, Quality of Service, RADIUS and AAA

Description: Manages ISG subscriber session lifecycle, service activation, and per-subscriber policy enforcement on Cisco IOS.

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 CISCO-SUBSCRIBER-SESSION-MIB?

CISCO-SUBSCRIBER-SESSION-MIB defines objects for managing subscriber sessions terminated by a Cisco Network Access Server (NAS) acting as a Remote Access Server (RAS), covering the traffic path between customer-premises equipment (CPE) and the NAS in Intelligent Services Gateway (ISG) deployments. It belongs to Cisco's broadband/subscriber-management (ISG) feature area on IOS routers. The data it exposes spans session lifecycle and identity information: session type, IP address assignment method, session state, authentication status, redundancy mode, creation time, derived configuration, and subscriber identity/MAC address. This MIB is used to monitor the software-level operational status of individual subscriber sessions, whether a session is up, authenticated, and correctly assigned, functioning as a per-subscriber process/service status view rather than exposing chassis hardware health. It works alongside Cisco's broader ISG/AAA and interface MIBs that provide the underlying access-network context, and it is deployed on Cisco IOS/IOS-XE routers acting as broadband/ISG NAS devices in service-provider access networks. Network engineers evaluating or troubleshooting this functionality can download the CISCO-SUBSCRIBER-SESSION-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in CISCO-SUBSCRIBER-SESSION-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 IOS/IOS-XE routers as ISG/NAS broadband access devices

Monitoring Examples

An operator polls csubSessionTable/csubSessionEntry to check csubSessionState and csubSessionAuthenticated for a given subscriber, confirming whether the session is up and has passed authentication. csubSessionIpAddrAssignment and csubSessionCreationTime reveal how and when the subscriber's IP was assigned, useful for troubleshooting address-pool exhaustion or unexpectedly short session lifetimes. csubSessionMacAddress and csubSessionSubscriberLabel let an admin correlate a specific session back to a physical CPE or subscriber account when investigating a connectivity complaint.

What Can Be Monitored

  • subscriber session state
  • authentication status
  • IP address assignment method
  • session creation time/uptime
  • subscriber MAC address/identity
  • redundancy mode of session
Imported Objects

From CISCO-CBP-TC-MIB

CbpElementName

From CISCO-DYNAMIC-TEMPLATE-TC-MIB

DynamicTemplateName

From CISCO-SMI

ciscoMgmtOBJECT-IDENTITY

From CISCO-SUBSCRIBER-IDENTITY-TC-MIB

SubSessionIdentities
SubSessionIdentity
SubscriberAcctSessionId
SubscriberCircuitId
SubscriberDhcpClass
SubscriberDnis
SubscriberDomain
SubscriberLabel
SubscriberLocationName
SubscriberMediaType
SubscriberNasPort
SubscriberPbhk
SubscriberProtocolType
SubscriberRemoteId
SubscriberServiceName
SubscriberTunnelName
SubscriberUsername
SubscriberVRF

From CISCO-SUBSCRIBER-SESSION-TC-MIB

SubSessionRedundancyMode
SubSessionState
SubSessionType

From ENTITY-MIB

PhysicalIndex

From IF-MIB

InterfaceIndex
ifIndexOBJECT-TYPE

From INET-ADDRESS-MIB

InetAddress
InetAddressType

From PerfHist-TC-MIB

PerfCurrentCount
PerfIntervalCount
PerfTotalCount

From SNMPv2-CONF

MODULE-COMPLIANCE
NOTIFICATION-GROUP
OBJECT-GROUP

From SNMPv2-SMI

Counter32
Counter64
Gauge32
Integer32
MODULE-IDENTITY
NOTIFICATION-TYPE
OBJECT-TYPE
Unsigned32

From SNMPv2-TC

DateAndTime
MacAddress
RowStatus
StorageType
TEXTUAL-CONVENTION
TimeStamp
TruthValue

How to Use in IPNetwork Monitor

Example using csubAggStatsThrottleEngagements OID:

Select a Cisco IOS/IOS-XE routers as ISG/NAS broadband access device 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 csubAggStatsThrottleEngagements 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. This object indicates the number of times that nodes contained within the 'scope of aggregation' have engaged the subscriber session throttle since the last discontinuity time. 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 Counter64-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

RFC description

Defines subscriber session management with tracking of session state, performance metrics, and authentication details.

Start monitoring Cisco IOS/IOS-XE routers as ISG/NAS broadband access devices 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-SUBSCRIBER-SESSION-MIB