Cisco Systems 8600 Series 1shows an Snmp manager and the nodes within a domain, Snmp Overview

SNMP Overview

Figure 14-1shows an SNMP manager and the nodes within a domain.

Figure 14-1SNMP Manager and Agents in a BPX Domain

SV+ workstation	SNMP management
(SNMP manager)	platform

		BPX node 3
SNMP requests	BPX node 4		SNMP
	SNMP	SNMP requests	agent
SNMP responses	agent
		Prop.	STD
Prop.	STD	MIB	MIB II
		SNMP responses
MIB	MIB II		ATM UNI
	ATM UNI		3.1 MIB
	3.1 MIB

BPX node 1

BPX node 2

SNMP agent

Prop.	STD
MIB	MIB II

ATM UNI 3.1 MIB

SNMP agent

Prop.	STD
MIB	MIB II

ATM UNI 3.1 MIB

H8183

Communication between the agents and the SNMP manager uses the standard UDP protocol encapsulated within IP protocol. The communication link between the SNMP manager and the directly attached BPX node uses the Ethernet interface of an BCC processor card. The SNMP manager can be either local or remote to the BPX node.

Figure 14-1illustrates the SNMP manager’s communication with the agents in the network. Each node in the domain must have a network IP address assigned by the cnfnwip command (see the Cisco WAN Switching Command Reference publication for details). The manager uses the network IP address to address an agent in the domain. The directly attached node (Node 4 in Figure 14-1)directs the SNMP message to the addressed BPX node. Responses from the agent go to the directly attached node then pass over the Ethernet link to the SNMP manager.

Note The LAN IP address of the directly attached node must be configured with the cnflan command.

14-2Cisco BPX 8600 Series Reference