[mrtg] Re: bandwidth statements on Cisco - OFF TOPIC

[Scott Shipley]

"bandwidth" is used by igrp and eigrp routing protocols to calculate metric
cost on multipath links.  You use it in conjunction with "delay" to get a
higher "metric" on these type of routes.  For instance, if you have a T1 and
a 56K circuit to another network, you would set the bandwidth on the 56K to
560000 and your T1 to 1544000, and set your delay time to something around
160000 on your 56K circuit to get the higher metric. :)

------------------------------------------------------------------------
Scott Shipley
Senior Network and Systems Analyst
City of Glendale, Arizona
email: scott at ci.glendale.az.us
phone: (623) 930-2893



-----Original Message-----
From: mrtg-bounce at list.ee.ethz.ch [mailto:mrtg-bounce at list.ee.ethz.ch]On
Behalf Of Shawn Barnhart
Sent: Tuesday, September 28, 1999 12:38 PM
To: Meena Chockalingam
Cc: mrtg list
Subject: [mrtg] Re: bandwidth statements on Cisco


| Cisco allows bandwidth statements to set the correct clocking speed on the
| serial interfaces. Does this affect the ifSpeed variable?
|
| If it does not, how does the ifSpeed variable get populated with a value?
|

My Cisco command reference for 11.3 says that the bandwidth command is a
reference for higher level protocols. It doesn't say *which* higher level
protocols, but I have a distant memory of a Cisco instructor telling us that
eigrp uses it in route path computation.  I don't think it does anything for
serial interface clocking, the interface command "clock" does this.

You have to use it to populate ifSpeed.


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