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Cisco Systems, Inc. www.cisco.com
Dying Gasp
This chapter describes the Dying-Gasp feature for the Cisco Industrial Ethernet series switches.
Dying Gasp resides on a hardware component on the High-performance WAN Interface Card (HWIC) and supports
Gigabit Ethernet interfaces. The networking devices rely on a temporary back-up power supply on a capacitor, that allows
for a graceful shutdown and the generation of the dying-gasp message. This temporary power supply is designed to last
from 10 to 20 milliseconds to perform these tasks.
Dying-Gasp packets are created when you configure the host by using the dying-gasp configuration command. The
show dying-gasp packets command displays the detailed information about the created packets.
The SNMP server for the SNMP Dying Gasp message is specified through the snmp-server host configuration
command. The syslog server sending the syslog Dying Gasp message is specified through the logging host
hostname-or-ipaddress transport udp command. The Ethernet-OAM Dying Gasp packets are created for interfaces
where Ethernet-OAM is enabled.
Dying Gasp packets can be sent to a maximum number of 5 servers for each notification type.
For more information about configuring Dying Gasp, see the Configuring Dying Gasp chapter of the System Management
guide at this URL:
http://www.cisco.com/c/en/us/td/docs/switches/connectedgrid/cg-switch-sw-master/software/configuration/guide/
sysmgmt/CGS_1000_Sysmgmt/cgs_dying_gasp.html
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