data between routers onT1

Unanswered Question
May 31st, 2007

Should the router reported data in bits per second between two Cisco routers connected via T1 be about the same ? In other words, should the data one router sends be about equal to the data the other router receives and vice versa ? Logic tells me yes but data tells me otherwise.

I have this problem too.
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Paolo Bevilacqua Thu, 05/31/2007 - 19:36

Absolutely not. Traffic pattern can be very asymmetric depending on the application. Experiment MRTG/PRTG or any other monitoring application and you will see live how traffic builds up in one direction and the other.

Hope this helps, please rate post if it does!

allsupjon Thu, 05/31/2007 - 20:13

I agree but the data I'm looking at is from the serial interface that goes to T-1 line. I would think that one byte going out on s0 of router 1 would still be 1 byte going in on s0 of router 2.

Paolo Bevilacqua Fri, 06/01/2007 - 06:08

Correct, output counters on sending router must equal input counters on receiving router. If it doesn't, something is seriously wrong.


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