From: Michael Wong (Michael.Wong@xxxxxxxxxx)
Date: Sat Aug 18 2001 - 04:45:26 GMT-3
BGP gurus ..... I am trying to do the example in Doyle Vol II, page 175 with BG
P synchronisation and OSPF.
I have BGP routes going between AS100, AS300 and AS200 ..... however for some r
eason the routes from these AS's are not being advertised into AS400. If I do a
debug on the Telluride router I get the output below. I cannot seem to find wh
at this output means anywhere on the Cisco site. I am assuming it's got somethi
ng to do with these routes not being able to be propagated to Alta.
00:07:16: BGP(0): no valid path for 0.0.0.0/0
00:07:16: BGP(0): no valid path for 192.168.1.208/30
00:07:16: BGP(0): no valid path for 192.168.1.212/30
00:07:16: BGP(0): no valid path for 192.168.1.216/30
00:07:16: BGP(0): no valid path for 192.168.1.224/30
00:07:16: BGP(0): no valid path for 192.168.100.0/24
00:07:16: BGP(0): no valid path for 192.168.200.0/24
00:07:16: BGP(0): no valid path for 192.168.250.0/24
If I look in Alta's BGP routing table, all I see is the following (no routes fr
om the other AS's), even though it has an adjacency with Telluride ....
BGP table version is 6, local router ID is 192.168.75.1
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
*> 192.168.1.200/30 0.0.0.0 0 32768 i
*> 192.168.50.0 0.0.0.0 0 32768 i
*> 192.168.75.0 0.0.0.0 0 32768 i
Telluride's BGP table has all the routes so I'm assuming that synchronisation i
s OK.
BGP table version is 6, local router ID is 192.168.1.206
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
* i0.0.0.0 192.168.1.221 100 0 100 i
*> 192.168.1.200/30 192.168.1.205 0 0 400 i
* i192.168.1.212/30 192.168.1.221 0 100 0 300 i
* i192.168.1.216/30 192.168.1.221 0 100 0 100 i
*> 192.168.50.0 192.168.1.205 0 0 400 i
*> 192.168.75.0 192.168.1.205 0 0 400 i
* i192.168.100.0 192.168.1.221 0 100 0 100 i
* i192.168.200.0 192.168.1.221 409600 100 0 100 i
* i192.168.250.0 192.168.1.221 0 100 0 300 i
The previous example used the same network without BGP synchronisation and just
using IBGP, this was OK and routes were propagated into AS400.
Help please ....... MW
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