[c-nsp] BGP prepend problems

[Alain Cocconi]

Hello,

I'm advertising routes with prepends but some backbone's routers doesn't 
care about my prepends
Does anybody has an idea about what's happenning ?

tia

Here is a sample :

--- Due to prepends, it should not be in routing tables ...---

# route-views.ab.bb.telus.com   --   TELUS Alberta BGP Route Viewer

route-views.ab>sh ip bgp 203.147.68.0
BGP routing table entry for 203.147.64.0/20, version 25483420
Bestpath Modifiers: deterministic-med
Paths: (1 available, best #1)
 Not advertised to any peer
 852 7473 7474 18117 18200 17480 17480 17480 17480 17480 17480
   154.11.98.17 from 154.11.98.17 (154.11.0.71)
     Origin IGP, localpref 100, valid, external, best


--- This one is ok ---

#BROADNET AG - Route-views Server

route-views>sh ip bgp 203.147.68.0
BGP routing table entry for 203.147.64.0/20, version 118838719
Paths: (1 available, best #1, table Default-IP-Routing-Table)
Multipath: eBGP iBGP
 Advertised to peer-groups:
    routeview
 4565 13589 17480, (received & used)
   206.223.115.52 (metric 60) from 194.140.115.2 (194.140.115.2)
     Origin incomplete, metric 202, localpref 110, valid, internal, best
     Community: 9132:3 9132:502 9132:666 9132:667 9132:2030 9132:2538
     Originator: 1