Simple Network Management Protocol - Snmp; Snmp Basic Operations; Snmpv1 Community Strings - Avaya ERS 2500 Technical Configuration Manual

10. Simple Network Management Protocol -
SNMP
The Ethernet Routing Switch supports all three version of SNMP defined as SNMPv1, SNMPv2,
and SNMPv3. SNMPv2 is similar to SNMPv1 in that only Community Strings are used for
authentication. SNMPv2 differs from SNMPv1 in that it supports GetBulk and Inform operations.
The GetBulk operation is used to retrieve large blocks of data while the Inform operation allows
traps to be acknowledged. SNMPv3 specifies a User Security Model (USM) providing for user-
name and password authentication, encryption, and control access to management information
(MIB). SNMPv3 is not a stand-alone replacement for SNMPv1 and/or SNMPv2. It simply defines
security capabilities to be used in conjunction with SNMPv2 or SNMPv1.

10.1 SNMP Basic Operations

You can enable or disable SNMP on the Ethernet Routing Switch using the following command.
By default, SNMP is disabled.

ERS-Stackable(config)# snmp-server <enable|disable>

10.2 SNMPv1 Community Strings

SNMPv1 and SNMPv2 simply use a community string match for authentication. To support user
name, authentication, and encryption, SNMPv3 must be used. The default SNMP community
string can be changed by using the following commands.
To change the SNMP read-write community string, enter the following command depending on
the switch model:

ERS-Stackable(config)# snmp-server community <enter rw string> rw

ERS-Stackable(config)# snmp-server community rw
Enter community string: <enter rw string>
Confirm community string: <enter rw string>
To change the SNMP read-only community string, enter the following command:

ERS-Stackable(config)# snmp-server community <enter rw string> ro

ERS-Stackable(config)# snmp-server community ro
Enter community string: <enter ro string>
Confirm community string: <enter ro string>
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