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Syntax
snmp-server host host-addr community-string [1 | 2]
no snmp-server host host-addr
host-address — Internet address of the host (the targeted recipient). An out-of-band IP address
can be specified as described in the User Guidelines.
community-string — Password-like community string sent with the notification operation. (R ange:
1 - 20 characters)
1 — SNMPv1 traps is used.
2 — SNMPv2 traps is used (Default).
Default Configuration
The default is SNMPv2.
UDP Port - 162
timeout - 15 seconds
retries - 3.
Command Mode
Global Configuration mode
User Guidelines
If a trap and inform are defined on the same target, and an inform was sent, the trap is not sent.
An inform request is held in memory until a response is received or the request times out. An inform can
be resent or retried several times, but traps are sent only once. Network traffic is increased with retries.
Therefore, traps and informs require a trade-off between reliability and resources. Inform requests should
be used, if it is important that the SNMP manager receives every notification. If traffic on the network or
memory in the switch is a concern and notification is not required, traps should be used.
To define an SNMP recipient on the out-of-band port, use the out-of-band IP address format —
oob/ip-address.
Use only unicast IP addresses.
Example
The following example enables SNMP traps for host 10.1.1.1 with community string "management" using
SNMPv2.
Console (config)# snmp-server host 10.1.1.1 management 2
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