Hardware CEF entry usage is at 95% capacity on 7600

From: ZZ (zurabz@gmail.com)
Date: Mon Dec 01 2008 - 14:01:54 ARST

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Hello Experts,

Need your help.

I'm receiving full view on Cisco 7600 router. As you know by default
maximum-routes is 239K

 Router#sh mls cef maximum-routes
FIB TCAM maximum routes :
=======================
Current :-
-------
 IPv4 - 239k
 MPLS - 1k (default)
 IPv6 + IP Multicast - 8k (default)
%MLSCEF-SP-4-FIB_EXCEPT

Somehow the router crashed and on syslog file I saw this message.

"%MLSCEF-SP-4-FIB_EXCEPTION_THRESHOLD: Hardware CEF entry usage is at 95%
capacity for IPv4 unicast protocol"

Now I'm trying to figure out the main reason for the crash?
Do you expert think it was due to Hardware CEF THRESHOLD? If yes, can you
explain why?

Thanks in advance,
ZZ

Blogs and organic groups at http://www.ccie.net

• Next message: Joseph Brunner: "RE: Hardware CEF entry usage is at 95% capacity on 7600"
• Previous message: Razzaq Shaikh: "OSPF Updates Restriction"
• Next in thread: Joseph Brunner: "RE: Hardware CEF entry usage is at 95% capacity on 7600"
• Maybe reply: Joseph Brunner: "RE: Hardware CEF entry usage is at 95% capacity on 7600"
• Maybe reply: ZZ: "Re: Hardware CEF entry usage is at 95% capacity on 7600"
• Maybe reply: Kim Teu - Amitabha: "Re: Hardware CEF entry usage is at 95% capacity on 7600"
• Maybe reply: Pavel Bykov: "Re: Hardware CEF entry usage is at 95% capacity on 7600"
• Maybe reply: ZZ: "Re: Hardware CEF entry usage is at 95% capacity on 7600"
• Maybe reply: Marko Milivojevic: "Re: Hardware CEF entry usage is at 95% capacity on 7600"
• Maybe reply: ZZ: "Re: Hardware CEF entry usage is at 95% capacity on 7600"
• Maybe reply: Marko Milivojevic: "Re: Hardware CEF entry usage is at 95% capacity on 7600"
• Maybe reply: Cristea, Bogdan, VF-RO: "RE: Hardware CEF entry usage is at 95% capacity on 7600"
• Maybe reply: ZZ: "Re: Hardware CEF entry usage is at 95% capacity on 7600"
• Maybe reply: Johnny Phan: "Re: Hardware CEF entry usage is at 95% capacity on 7600"
• Maybe reply: Marko Milivojevic: "Re: Hardware CEF entry usage is at 95% capacity on 7600"
• Maybe reply: Lars Christensen: "RE: Hardware CEF entry usage is at 95% capacity on 7600"
• Maybe reply: Scott Morris: "RE: Hardware CEF entry usage is at 95% capacity on 7600"
• Maybe reply: Lars Christensen: "RE: Hardware CEF entry usage is at 95% capacity on 7600"
• Maybe reply: Johnny Phan: "Re: Hardware CEF entry usage is at 95% capacity on 7600"
• Maybe reply: Marko Milivojevic: "Re: Hardware CEF entry usage is at 95% capacity on 7600"
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