Chapter 5
| SNMP Commands
SNMP Target Host Commands
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community-string - Password-like community string sent with the
notification operation to SNMP V1 and V2c hosts. Although you can set this
string using the snmp-server host command by itself, we recommend
defining it with the snmp-server community command prior to using the
snmp-server host command. (Maximum length: 32 characters)
version - Specifies whether to send notifications as SNMP Version 1, 2c or 3
traps. (Range: 1, 2c, 3; Default: 1)
auth | noauth | priv - This group uses SNMPv3 with authentication, no
authentication, or with authentication and privacy. See “Simple
Network Management Protocol” in the System Reference Guide for
further information about these authentication and encryption
options.
port - Host UDP port to use. (Range: 1-65535; Default: 162)
Default Setting
Host Address: None
Notification Type: Traps
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, you
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 more
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.
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