Alcatel-Lucent 7210 SAS E OS System Management Manual page 169

Configuration Commands
SNMP System Commands
engineID
Syntax [no] engineID engine-id
Context config>system>snmp
Description
This command sets the SNMP engineID to uniquely identify the SNMPv3 node. By default, the
engineID is generated using information from the system backplane.
If SNMP engine ID is changed in the config>system>snmp> engineID engine-id context, the current
configuration must be saved and a reboot must be executed. If not, the previously configured SNMP
communities and logger trap-target notify communities will not be valid for the new engine ID.
Note: In conformance with IETF standard RFC 2274, User-based Security Model (USM) for version
3 of the Simple Network Management Protocol (SNMPv3), hashing algorithms which generate
SNMPv3 MD5 or SHA security digest keys use the engineID. Changing the SNMP engineID
invalidates all SNMPv3 MD5 and SHA security digest keys and may render the node unmanageable.
When a chassis is replaced, use the engine ID of the first system and configure it in the new system to
preserve SNMPv3 security keys. This allows management stations to use their existing authentication
keys for the new system.
Ensure that the engine IDs are not used on multiple systems. A management domain can only have
one instance of each engineID.
The no form of the command reverts to the default setting.
Default
The engine ID is system generated.
Parameters
engine-id — An identifier from 10 to 64 hexadecimal digits (5 to 32 octet number), uniquely
general-port
Syntax general-port port-number
no general-port
Context config>system>snmp
Description
This command configures the port number used by this node to receive SNMP request messages and
to send replies. Note that SNMP notifications generated by the agent are sent from the port specified
in the config>log>snmp-trap-group>trap-target CLI command.
7210 SAS-E OS System Management Guide
identifying this SNMPv3 node. This string is used to access this node from a remote host with
SNMPv3.
SNMP
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