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Weird BGP problem and packet loss

 
 
Zed Zed is offline
Junior Member
Join Date: Feb 2008
Posts: 1
 
      02-18-2008
Hi all.

I have a /30 configured with Fibrenet [MPLS circuit]. When I ping the other end of the /30 [172.16.90.109] [BGP peer] using various MTU size, I experience no packet loss and the line is clean. However, when I apply the 'neighbor x.x.x.x allowas-in 2' on my router and then ping 172.16.90.109 the line suffers from packet loss [between 5 and 10 %]. The BGP peer is up, I am receiving all the routes etc but surely configuring 'allowas-in' shouldn't cause ICMP packets to be dropped given I am only pinging the other end of the /30 address.

Fibrenet have confirmed they are not classifying ICMP packets. Any ideas?

BGP config:

router bgp 65498
no synchronization
bgp log-neighbor-changes
network 172.16.90.89 mask 255.255.255.255
neighbor 172.16.90.109 remote-as 64513
neighbor 172.16.90.109 update-source FastEthernet0/0
neighbor 172.16.90.109 allowas-in 2
neighbor 172.16.90.109 password 7 104208140747000C040D247A
no auto-summary


Many thanks.
 
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