Restrictions for Dying Gasp Support
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The dying gasp feature is not supported if you remove the power supply unit (PSU) from the system.
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SNMP trap is sent only on power failure or removal of power supply cable on selected platforms.
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The dying gasp support feature cannot be configured using CLI. To configure hosts using SNMP, refer to the SNMP host configuration examples below.
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In the case of system reload or interface shutdown on the Cisco 4000 Series ISRs and Cisco 1100 Series ISRs running Cisco IOS-XE Everest Release 16.6.2, dying gasp packets are sent to peer routers. However, the system state is not captured in the system logs (syslogs) or SNMP traps.