Microsens MS453490M Management Guide User Manual

Page 561

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C

HAPTER

22

| SNMP Commands

– 561 –

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" on

page 369

for further information about these authentication and

encryption options.

port - Host UDP port to use. (Range: 1-65535; Default: 162)

D

EFAULT

S

ETTING

Host Address: None

Notification Type: Traps

SNMP Version: 1

UDP Port: 162

C

OMMAND

M

ODE

Global Configuration

C

OMMAND

U

SAGE

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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