Cisco Systems 8600 Series manual BPX Snmp Agent, Snmp Overview

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BPX SNMP Agent

This chapter introduces the functions of the Simple Network Management Protocol (SNMP) agent that is embedded in each BPX node. To benefit from this chapter, readers should have a general knowledge of SNMP, IP protocols, and MIBs.

The chapter contains the following:

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Introduction

SNMP Overview

SNMP Functions

MIB II Support

Cisco WAN Switching Proprietary MIB Structure

Introduction

An SNMP agent is embedded in each BPX node. (This feature is an addition to and functionally different from the SNMP Proxy Agent that can be used by a non-SV+ workstation to provide access to a MIB on the SV+ workstation which contains data extracted from the SV+ Informix database.) The SNMP agent permits an SNMP manager to view and set certain network objects in Management Information Bases (MIBs) that are maintained in each BPX node within a managed network. The embedded SNMP agent supports the standard Internet MIB II, the ATM 3.1 UNI MIB, and a Cisco WAN Switching proprietary MIB. The Cisco WAN Switching proprietary MIB contains information necessary to control ports and connections on the switches in the network. The standard Internet MIB II contains MIB modules defined by the Internet Engineering Steering Group (IESG). SNMP support is available on both IPX and BPX switches.

The proprietary MIB is supplied on a tape for compilation into the user’s SNMP manager.

SNMP Overview

An SNMP manager manages the SNMP agents in each BPX node in a single domain. To gain access to network nodes, the SNMP manager is connected to one of the BPX nodes through its Ethernet port, which acts as a gateway for the SNMP manager to communicate with all the other BPX nodes in the domain.

In multiple networks, a separate SNMP manager must exist for each network that is being managed. Furthermore, nodes within a multi-network can be managed by multiple SNMP managers. Also, ATM connections that span multiple networks are supported in the SNMP MIB.

BPX SNMP Agent 14-1