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easy question for you guys

hectorjhrdzhectorjhrdz Member Posts: 127
in CCIE
hi guys i hope all of you to be in good health


Do you know what the processor performance impact of an ACL on a Border router is?

also, can you help me with a link or a document about processor perfomance issues on a RSP8 cisco R7000 or 7200 VXR?


thnks in advance guys
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  • DW [banned]DW [banned] Inactive Imported Users Posts: 240
    Big Question.
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  • mikej412mikej412 Member Posts: 10,086 ■■■■■■■■■■
    DarbyWeaver wrote:
    Sh proc cpu - before and after

    Do you like the new results better than the old?
    And Turbo ACLs.... don't forget compiling the ACL into a set of lookup tables increases performance.

    Are you using lock-and-key or dynamic access lists?
    :mike: Cisco Certifications -- Collect the Entire Set!
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  • hectorjhrdzhectorjhrdz Member Posts: 127
    the router is running Ip CEF and BGP-4


    i asked that question because i wanna know what the impact of adding 2 lines on the ACl for blocking the 25 port is.

    the normal processor percentage is around 7% (5 min) with a traffic of 62 Mbps .
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  • DW [banned]DW [banned] Inactive Imported Users Posts: 240
    Nice
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  • romainromain Member Posts: 222
    DarbyWeaver wrote:
    It should not impact you that much.

    I have taken 7206 VXR Routers with NPE400's and added at least 100 acls at a time with insignificant CPU increases or impact on user performance on up to 45mb lines before.

    You can always add incrementally - to be safe if you have major doubts.
    I confirm but breaking CEF is not a good decision...
    CCIE R&S Candidate

    Dynamips Labs
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  • DW [banned]DW [banned] Inactive Imported Users Posts: 240
    Got it.
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  • romainromain Member Posts: 222
    Excuse me Darby I misread your post. When I saw this CEF disabling I remembered a disaster I had to recover a few weeks back...

    Mea culpa ;)
    CCIE R&S Candidate

    Dynamips Labs
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  • hectorjhrdzhectorjhrdz Member Posts: 127
    thnks guys, very interesting posts
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