User manual

HAPTER

| Configuring the Switch

Configuring Security

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8 colon-separated 16-bit hexadecimal values. One double colon may be

used to indicate the appropriate number of zeros required to fill the

undefined fields.

◆ Trap Authentication Failure - Issues a notification message to

specified IP trap managers whenever authentication of an SNMP

request fails. (Default: Enabled)

◆ Trap Link-up and Link-down - Issues a notification message

whenever a port link is established or broken. (Default: Enabled)

◆ Trap Inform Mode - Enables or disables sending notifications as

inform messages. Note that this option is only available for version 2c

and 3 hosts. (Default: traps are used)

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.

◆ Trap Inform Timeout - The number of seconds to wait for an

acknowledgment before resending an inform message. (Range: 0-2147

seconds; Default: 1 second)

◆ Trap Inform Retry Times - The maximum number of times to resend

an inform message if the recipient does not acknowledge receipt.

(Range: 0-255; Default: 5)

◆ Trap Probe Security Engine ID (SNMPv3) - Specifies whether or not

to use the engine ID of the SNMP trap probe in trap and inform

messages. (Default: Enabled)

◆ Trap Security Engine ID (SNMPv3) - Indicates the SNMP trap security

engine ID. SNMPv3 sends traps and informs using USM for

authentication and privacy. A unique engine ID for these traps and

informs is needed. When “Trap Probe Security Engine ID” is enabled,

the ID will be probed automatically. Otherwise, the ID specified in this

field is used. (Range: 10-64 hex digits, excluding a string of all 0’s or all

F’s)

OTE

The Trap Probe Security Engine ID must be disabled before an

engine ID can be manually entered in this field.

◆ Trap Security Name (SNMPv3) - Indicates the SNMP trap security

name. SNMPv3 traps and informs use USM for authentication and

privacy. A unique security name is needed when SNMPv3 traps or

informs are enabled.