Re: BGP Link Bandwidth

From: Nick Griffin (ngriffin@sio.midco.net)
Date: Sun Apr 23 2006 - 17:57:26 GMT-3


I just did some testing on this as well, it appears changing the
bandwidth on the local interface is the way that you are able to
influence the value. This value is then passed on internally. It does
not appear to change when the upstream ebgp neighbor adjusts his
interface bandwidth:

Radoslav Vasilev wrote:
> I have BGP session between 2 AS. Router A in AS50 peers with routers B and C
>
> in AS60.
> I'm testing the BGP Link Bandwidth feature and everything works fine:
>
> RouterA#sib 192.168.0.0
> BGP routing table entry for 192.168.0.0/24, version 3
> Paths: (2 available, best #1, table Default-IP-Routing-Table)
> Multipath: eBGP iBGP
> Advertised to non peer-group peers:
> 10.1.1.6
> 60
> 10.1.1.7 from 10.1.1.7 (10.1.1.7)
> Origin IGP, metric 0, localpref 100, valid, external, multipath, best
> DMZ-Link Bw 12500 kbytes
> 60
> 10.1.1.6 from 10.1.1.6 (138.10.6.6)
> Origin IGP, metric 0, localpref 100, valid, external, multipath
> DMZ-Link Bw 12500 kbytes
>
>
> I want now to change the advertised BW from 10.1.1.7 (Router C). I tried
> with changing the interface bandwidth on Router C, but the route from it is
> still reflecting the default bandiwdth (100Mbit/s in KBytes = 12500).
>
> Any idea how i can change it?
>
>
> Thanks!
> Rado
>
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