user manual

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Cisco 7304 Router MIB Specifications Guide

OL-4925-02

Chapter 3 MIB Specifications

CISCO-CDP-MIB

The CISCO-CDP-MIB contains objects to manage the Cisco Discovery Protocol (CDP) on the router.

CISCO-CEF-MIB

The CISCO-CEF-MIB (Cisco Express Forwarding) contains objects that manage Cisco Express

Forwarding (CEF) technology. CEF is the key data plane forwarding path for layer 3 IP switching

technology. The CISCO-CEF-MIB monitorS CEF operational data and provideS notification when

encountering errors in CEF, through SNMP.

Note Cisco Express Forwarding (CEF) is a high speed switching mechanism that a router uses to forward

packets from the inbound to the outbound interface.

CISCO-CIRCUIT-INTERFACE-MIB

The CISCO-CIRCUIT-INTERFACE-MIB contains objects to configure the circuit description for an

interface. The circuit description identifies circuits on interfaces such as ATM and Frame Relay, and

might be used, for example, to correlate performance statistics on the corresponding interfaces.

CISCO-CLASS-BASED-QOS-MIB

The CISCO-CLASS-BASED-QOS-MIB provides access to quality of service (QoS) configuration

information and statistics for Cisco platforms that support the Modular Quality of Service command-line

interface (Modular QoS CLI).

The MIB uses the following indexes to identify QoS features and distinguish among instances of those

features:

• cbQosPolicyIndex—Identifies a service policy that is attached to a logical interface.

• cbQosObjectsIndex—Identifies each QoS feature on the Cisco 7304 router.

• cbQosConfigIndex—Identifies a type of QoS configuration. This index is shared by QoS objects that

have identical configurations.

The indexes cbQosPolicyIndex and cbQosObjectsIndex are assigned by the system to uniquely identify

each instance of a QoS feature. These indexes are never reused between router reboots, even if the QoS

configuration changes.

QoS MIB information is stored in:

• Configuration objects—Includes all ClassMap, PolicyMap, Match Statements, and Feature Actions

configuration parameters. Might have multiple identical instances. Multiple instances of the same

QoS feature share a single configuration object, which is identified by cbQosConfigIndex.

• Statistics objects—Includes summary counts and rates by traffic class before and after any

configured QoS policies are enforced. In addition, detailed feature-specific statistics are available

for select PolicyMap features. Each has a unique runtime instance. Multiple instances of a QoS