From: zhutong (zhutong@xxxxxxxxxxxxxx)
Date: Mon May 21 2001 - 03:02:17 GMT-3
Give your config pls.
----- Original Message -----
From: "Darren Hosking" <dhosking@commander.com.au>
To: <ccielab@groupstudy.com>
Sent: Monday, May 21, 2001 11:44 AM
Subject: should all IBGP neighbours have all EBGP paths?
> I have 2 BGP routers connected externally to the same AS and internally to
> each other using IBGP. The local preference is set to prefer one link over
> the other. All paths are visible on the non-preferred router (shows both
> paths out with the other as preferred), however, the router with the
> preferred path to the ISP only shows the paths it knows about and not the
> paths via the other link.
>
> Is this correct? Don't both need all paths or are they exchanged when the
> preferred path is no longer available (could be a lot of traffic)?
>
> I'm using Halabi 1st edition as reference, is the 2nd edition much better
> and in what areas (ie should I buy the newer edition).
>
> Thanks, Darren
>
> The output of sh ip bgp summ and sh ip bgp for one network is shown below.
>
> Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down
> State/PfxRcd
> 10.0.1.1 4 1221 6221 3628 43815 0 0 2d12h 6606
> 172.24.24.1 4 65000 6626 6313 43815 0 0 13:10:59 6606
>
> BGP table version is 43789, local router ID is 172.24.97.1
> Status codes: s suppressed, d damped, h history, * valid, > best, i -
> internal
> Origin codes: i - IGP, e - EGP, ? - incomplete
>
> Network Next Hop Metric LocPrf Weight Path
> *>i9.3.4.0/24 172.24.24.1 300 0 1221 ?
> * 10.0.1.1 250 0 1221 ?
>
> Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down
> State/PfxRcd
> 10.0.2.1 4 1221 43026 26728 37714 0 0 4d01h 6605
> 172.24.96.1 4 65000 11860 12348 37714 0 0 13:10:26 0
> <---?????
>
> BGP table version is 37689, local router ID is 172.24.23.1
> Status codes: s suppressed, d damped, h history, * valid, > best, i -
> internal
> Origin codes: i - IGP, e - EGP, ? - incomplete
>
> Network Next Hop Metric LocPrf Weight Path
> *> 9.3.4.0/24 10.0.2.1 300 0 1221 ?
> **Please read:http://www.groupstudy.com/list/posting.html
**Please read:http://www.groupstudy.com/list/posting.html
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