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: %COMMON_FIB-4-DISABLING: IPv4 CEF is being disabled due to a fatal error: %COMMON_FIB-4-DISABLING: IPv4 CEF is being disabled due to a fatal error

Am running ASR1001 router as LNS and suddnly i see the following error on the monitor

: %COMMON_FIB-4-DISABLING: IPv4 CEF is being disabled due to a fatal error

any idea????

1 REPLY
Cisco Employee

 Hi kashalo84, It normally

 

Hi kashalo84,

 

It normally happens due to low memory and that can be caused due to full internet routing table. Please provide output of 

 

- show memory stats

- show ip route summary

- show ip bgp summary

 

Regards,

Akash

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