SNMP Commands
40-6
40
• SNMP Version: 1
• UDP Port: 162
Command Mode
Global Configuration
Command Usage
• If you do not enter an snmp-server host command, no notifications are sent.
In order to configure the switch to send SNMP notifications , you must enter at
least one snmp-server host command. In order to enable multiple hosts, y ou
must issue a separate snmp-server host command for each host.
•The snmp-server host command is used in conjunction with the
snmp-server enable traps command. Use the snmp-server enable traps
command to enable the sending of traps or informs and to specify which
SNMP notifications are sent globally. For a host to receive notifications, at
least one snmp-server enable traps command and the snmp-server host
command for that host must be enabled.
• Some notification types cannot be controlled with the snmp-server enable
traps command. For example, some notification types are always enabled.
• Notifications are issued by the switch as trap messages by default. The
recipient of a trap message does not send a response to the switch. Traps are
therefore not as reliable as inform messages, which include a request for
acknowledgement of receipt. Informs can be used to ensure that critical
information is received by the host. However, note that informs consume m ore
system resources because they must be kept in memory until a response is
received. Informs also add to network traffic. You should consider these
effects when deciding whether to issue notifications as traps or informs.
To send an inform to a SNMPv2c host, complete these steps:
1.Enable the SNMP agent (page 40-2).
2.Allow the switch to send SNMP traps; i.e., notifications (page 40-7).
3.Specify the target host that will receive inform messages with the
snmp-server host command as described in this section.
4.Create a view with the required notification messages (page 40-10).
5.Create a group that includes the required notify view (page 40-11).
To send an inform to a SNMPv3 host, complete these steps:
1.Enable the SNMP agent (page 40-2).
2.Allow the switch to send SNMP traps; i.e., notifications (page 40-7).
3.Specify the target host that will receive inform messages with the
snmp-server host command as described in this section.
4.Create a view with the required notification messages (page 40-10).
5.Create a group that includes the required notify view (page 40-11).
6.Specify a remote engine ID where the user resides (page 40-8).
7.Then configure a remote user (page 40-14).
• The switch can send SNMP Version 1, 2c or 3 notifications to a host IP
address, depending on the SNMP version that the managem ent station