Alcatel-Lucent OS6450-24 User's Guide download pdf (Page 54)

Dying Gasp

If the switch loses all power it will maintain power long enough to send a Dying Gasp message before

completely shutting down. An SNMP trap, Syslog message and Link OAM PDUs will be generated.

Scenarios

A Dying Gasp event will be generated in the following scenarios:

• Primary power supply failure (if only power supply present).

• Primary power supply failure and then backup power supply failure.

• Backup power supply failure and then primary power supply failure.

• When a reload command is issued.

• When a takeover command is issued.

Note. Dying gasp will not work when both primary and backup power supplies fail simultaneously.

Connect each power supply to a separate independent power source to avoid simultaneous power failures.

SNMP Trap

As soon as the power failure is detected, an SNMP trap is sent to the first three configured SNMP stations.

The trap includes the following information:

• Slot number

• Power supply type (primary/backup)

• Time of the failure

Use the snmp station command and refer to the SNMP Configuration chapter for information on

configuring an SNMP station.

Syslog Message

As soon as the power failure is detected, the following Syslog message is sent to the first four configured

Syslog servers, along with the time of the failure:

Dying Gasp Power Failure Event Occurred

Use the swlog output socket command to add a Syslog station. Refer to the Using Switch Logging

Configuration chapter in the OmniSwitch 6250/6450 Network Configuration Guide for information on

configuring a Syslog server.

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Alcatel-Lucent OS6450-24 User's Guide Page 54