Estimate IFInOctets on multilink interface

Nov 22, 2005 1 Replies
A

HEllo, I have a multilink interface (index 50) contains two FR links (index 40 and 41).



I want to know what is a load of multilink. So I tryed to monitor ifInOctets related with multilink interface.



I also monitored ifInOctets related with two FR links (index 40 and



41).

The sum of ifInOctets for two FR links (index 40 and 41) is greater then the ifInOctets on multilink interface.



Why ? Did I miss something ? Here are the values first FR link - IF-MIB::ifInOctets.40 = Counter32: 707734249 second FR link IF-MIB::ifInOctets.41 = Counter32: 707752478 multilink - IF-MIB::ifInOctets.50 = Counter32: 1388116339



anti00



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M

That's because there are a few bytes, L2 encapsulation, and frames, LMI etc. that are sent received on the FR links that don't go through the multilink i/f, so the total rx/tx on the bundle members will be a little bit more than what the multilink interface sees.

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