Dying Gasp Support on Ethernet or GigEthernet and SFP Port on IR1101

Overview

This chapter provides information about the Dying Gasp feature, which enables a router to send alerts to connected devices as it shuts down due to a power failure.

Dying Gasp Support on IR1101 Routers

From Cisco IOS XE Release 17.15.1, the Dying Gasp support is available for IR1101 router. Dying Gasp is a signal or an alert generated when the router is about to shut down due to a power failure. The IR1101 router sends dying gasp alerts to connected devices as packets through configured Fast Ethernet and Gigabit Ethernet ports. You can configure dying gasp packets for SNMP, Syslog, or Ethernet OAM protocols by specifying the primary and secondary destination protocols.


Note

The IR1101 router creates dying gasp packets based on the selected destination protocol.

Dying Gasp Configuration Command

To enable dying gasp notification through Syslog, SNMP, or Ethernet OAM, use the dying gasp command:

Table 1. Dying Gasp Configuration Command

Command

Description
dying-gasp primary {syslog | snmp-trap | ethernet-oam} secondary {syslog | snmp-trap | ethernet-oam} dying-gasp

  • primary—Dying Gasp primary notification

  • secondary—Dying Gasp secondary notification

  • ethernet-oam—Enable Ethernet OAM notification

  • snmp-trap—Enable trap notification sent to SNMP server

  • syslog—Enable system logger

Configure Dying Gasp

Procedure

Step 1

Enter the privileged EXEC mode.

router# enable

Step 2

Enter the configuration mode.

router# configure terminal

Step 3

Enable dying gasp notification through Syslog or SNMP or Ethernet OAM.

router(config)# dying-gasp primary {ethernet-oam|snmp-trap|syslog} secondary {ethernet-oam|snmp-trap|syslog}
Example: 
router(config)# dying-gasp primary ethernet-oam secondary snmp-trap

Step 4

Exit the global configuration mode and return to privileged EXEC mode.

router(config)# exit

Configuration Example for Dying Gasp

The example shows how to configure Ethernet OAM as primary destination and SNMP as secondary destination:


Router> enable
Router# configure terminal
Router# (config)#int gi0/0/0 
Router(config-if)# ethernet-oam 
Router(config-if)# exit 
Router(config)# int fa0/0/2 
Router(config-if)# ethernet-oam 
Router(config-if)# exit
Router(config)# snmp-server host 192.168.10.20 ver 2c xyz
Router(config)# dying-gasp primary ethernet-oam secondary snmp-trap

Verify Dying Gasp Packet Generation

Use the show command as given in the example to verify primary and secondary destination protocols. 

Router#show dying-gasp status
Dying Gasp Configuration
Ethernet OAM Enabled
SNMP Trap Enabled
Syslog Disabled

Use the show command as given in the example to verify the dying gasp packets. 

Router# show dying-gasp packets 
SNMP Trap packet for server 192.168.10.20,
link type IP interface, via GigabitEthernet0/0/0,
local IP address 192.168.10.30 encap type is ARPA,
local hardware address 90eb.5027.7800 next hop IP address 192.168.10.20,
next hop hardware address 90eb.5027.de80 
Ethernet OAM packet for interface GigabitEthernet0/0/0,
link type LINK_ETHER_OAM encap type is ARPA,
local hardware address 90eb.5027.7800 remote hardware address 0180.c200.0002 Ethernet OAM packet for interface FastEthernet0/0/2,
link type LINK_ETHER_OAM encap type is ARPA,
local hardware address 90eb.5027.7802 remote hardware address 0180.c200.0002
Ethernet OAM packet for interface FastEthernet0/0/2,
link type LINK_ETHER_OAM encap type is ARPA,
local hardware address 90eb.5027.7802 remote hardware address 0180.c200.0002