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maximum limit for counter

Hi all,

do you know the max number that the counter of an interface begin from zero?

Thanks

1 REPLY
Hall of Fame Super Silver

Re: maximum limit for counter

Counters are generally either 32-bit or 64-bit registers that are used to increment numbers using binary arithmetic. So they count to either 2 exp32 = 4,294,967,296 (about 4.3 billion) or 2 exp64 = 18,446,744,073,709,551,616 (about 18.4 quintillion).

While the first number may seem plenty for most applications, try using it to measure traffic over any menaingful period on a 10 Gbps interface. See http://www.cisco.com/en/US/customer/tech/tk648/tk362/technologies_q_and_a_item09186a00800b69ac.shtml for more details on when to use and how to query 64-bit counters.

Hope this helps, please rate helpful posts.

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