Brocade Communications Systems Brocate Ethernet Access Switch 6910 User Manual

Page 164

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114

Brocade 6910 Ethernet Access Switch Configuration Guide

53-1002581-01

SNMP Commands

6

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.

To send an inform to a SNMPv2c host, complete these steps:

1. Enable the SNMP agent (

page 109

).

2. Create a view with the required notification messages (

page 118

).

3. Create a group that includes the required notify view (

page 116

).

4. Allow the switch to send SNMP traps; i.e., notifications (

page 112

).

5. Specify the target host that will receive inform messages with the snmp-server host

command as described in this section.

To send an inform to a SNMPv3 host, complete these steps:

1. Enable the SNMP agent (

page 109

).

2. Create a local SNMPv3 user to use in the message exchange process (

page 117

).

3. Create a view with the required notification messages (

page 118

).

4. Create a group that includes the required notify view (

page 116

).

5. Allow the switch to send SNMP traps; i.e., notifications (

page 112

).

6. Specify the target host that will receive inform messages with the snmp-server host

command as described in this section.

The switch can send SNMP Version 1, 2c or 3 notifications to a host IP address, depending on
the SNMP version that the management station supports. If the snmp-server host command
does not specify the SNMP version, the default is to send SNMP version 1 notifications.

If you specify an SNMP Version 3 host, then the community string is interpreted as an SNMP
user name. The user name must first be defined with the

snmp-server user

command.

Otherwise, an SNMPv3 group will be automatically created by the snmp-server host command
using the name of the specified community string, and default settings for the read, write, and
notify view.

Example

Console(config)#snmp-server host 10.1.19.23 batman

Console(config)#

Related Commands

snmp-server enable traps (112)

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