[mrtg] Re: Graphing a Cisco IOS EtherChannel

[Andres.Tong at jud.ca.gov]

     Merton:
     I do a boolean add of all the traffic on theinterfaces that are in one 
     channel. The MRTG doc has information about how to do Boolean adds.
     
     -Andres Tong
     Network Engineer
     Judicial Council of California


______________________________ Reply Separator _________________________________
Subject: [mrtg] Graphing a Cisco IOS EtherChannel
Author:  Merton Campbell Crockett <mcc at TO.GD-ES.COM> at Internet
Date:    4/23/00 7:53 AM


I have just replaced aging and out of production Chipcom Galactica switches 
and Chipcom 4124MH hubs with Catalyst 2924M XL and Catalyst 2924 XL switches 
from Cisco.  These are marketed as a "Stack Pack" and includes paired cross 
over cables that link each Catalyst 2924 XL to the Catalyst 2924M XL through 
an EtherChannel.
     
MRTG's cfgmaker does not see anything unique about the pair of interfaces 
that are used to form the EtherChannel and creates separate entries for each 
channel.  I modified the Target statement for the first interface of the 
EtherChannel in the following manner.
     
 Target[TC1A-C2924M.25]: -25:public at TC1A-C2924M + -26:public at TC1A-C2924M
     
And, I added a RouterUptime statement specifying the first interface of the 
EtherChannel.  Out of curiousity how do others deal with EtherChannels?
     
Merton Campbell Crockett
     
     
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