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  1. Senior Member
    Join Date
    Sep 2007
    Location
    Upstate NY
    Posts
    111

    Certifications
    A+, Network+, MCSA 2k3, CCNA, CCNP
    #1

    Default Drop percentage?

    Hey all,
    General question, on an interface, how to calculate the percentage of drops vs. traffic? For example, an interface shows:

    91100226 packets output, 54264321771 bytes, 0 underruns
    27539837 output errors, 0 collisions, 0 interface resets


    Is the percentage of output errors the (output errors/packets output)*100 or (output errors/bytes)*100?

    Thanks!
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  2. Senior Member
    Join Date
    Aug 2016
    Location
    Richmond, VA
    Posts
    101

    Certifications
    CCNP R&S, CCNA Sec, A+, Net+, Sec+, Project+, Linux+/LPIC-1
    #2
    Your interface output 91100226 packets. You had 27539837 output errors. So as a % of total packets, that's (27539837/91100226) * 100 = 30.23% error rate.
    CCNP - Switch [X] Route [X] T-Shoot [X]
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