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Chapter 69 Dying Gasp Configuration
69.1 Introduction to Dying Gasp
Dying gasp is power failure alarm function. It means that at the case of power failure, the switch can also send
information through the ethernet ports to notice the other switch that it is power failure.
Dying gasp is enabled as default, but it could run normally with the snmp management function. So the layer 3
interface should be configured on switch and make it connect to snmp management server. snmp trap should
be configured orderly.
69.2 Dying Gasp Typical Examples
The dying gasp function of the switch is enabled as default, but it could run normally with the snmp
management function.
Below are the configuration steps:
Switch(config)#snmp-server enable
Switch(config)#snmp-server securityip X.X.X.X
Switch(config)#snmp-server host X.X.X.X v2c switch
Switch(config)#snmp-server enable traps
Switch(config)#interface vlan N
Switch(config-if-vlanN)ip address Y.Y.Y.Y 255.255.255.0
69.3 Dying Gasp Troubleshooting
If there is something wrong when configuring dying gasp function, please check out if it is because of the
following reasons:
Make sure the layer 3 interface has been configured and connected to snmp server.
Make sure the address of snmp server. More than one snmp server address can be configured on
switch, but dying gasp trap packets will be sent to the last configured server when it is power failure.
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Table of Contents
Troubleshooting
