Cisco SCE 1000 2xGBE User's Guide download pdf (Page 178)

Chapter 6 Control Configuration

SNMP Configuration and Management

SCE 1000 2xGBE Release 2.0.10 User Guide

6-32 OL-7117-02

Table 6-1 Request Types

Request Type Description Remarks

Set Request Writes new data to one or more of the

objects managed by an agent.

Set operations immediately affect

the SCE 1000 running-config but

do not affect the startup config.

Get Request Requests the value of one or more of the

objects managed by an agent.

Get Next

Request

Requests the Object Identifier(s) and

value(s) of the next object(s) managed by an

agent.

Get Response Contains the data returned by an agent.

Trap Sends an unsolicited notification from an

agent to a manager, indicating that an event

or error has occurred on the agent system

SCE 1000 may be configured to

send either SNMPv1 or SNMPv2

style traps.

Get Bulk

Request

Retrieves large amounts of object

information in a single Request / response

transaction. GetBulk behaves as if many

iterations of GetNext request/responses were

issued, except that they are all performed in

a single request/response.

This is newly defined SNMPv2c

message.

Configuration via SNMP

SCE 1000 supports a limited set of variables that may be configured via SNMP (read-write

variables). Setting a variable via SNMP (as via the CLI) takes effect immediately and affects only

the running-configuration. To make this configuration stored for next reboots (startup-

configuration) the user must specify it explicitly via CLI or via SNMP using the Cisco enterprise

MIB objects (see the figure in Cisco Enterprise MIB (on page 6-40)).

It should be noted also that the SCE 1000 takes the approach of a single configuration database

with multiple interfaces that may change this database. Therefore, activating the copy

running-config startup-config command via CLI or SNMP makes permanent all the

changes made by either SNMP or CLI.

Security Considerations

By default, the SNMP agent is disabled for both read and write operations. When enabled, SNMP

is supported over the management port only (in-band management is not supported).

In addition, SCE 1000 supports the option to configure community of managers for read-write

accessibility or for read-only accessibility. Furthermore, an ACL (Access List) may be associated

with a community to allow SNMP management to a restricted set of managers IP addresses.

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