Re: Cannot Get BGP peering to come up!!

From: Greg Wendel (gwendel@gmail.com)
Date: Sun Sep 30 2007 - 01:43:29 ART

Other possible problem could be the BB router is expecting something like:

neighbor 10.1.1.1 ttl-security hops 2

from
http://www.cisco.com/en/US/products/sw/iosswrel/ps5207/products_feature_guide09186a008020b982.html#wp1027265

On 9/27/07, Ajay Prakash <ajay.prakash@networkpeople.co.in> wrote:
>
> Hello,
>
>
>
> I am kind of stuck while trying to get the BGP peering up between R2
> (192.10.2.2) and BB1 (192.10.2.254). Please give me some tips as to how to
> troubleshoot this
>
>
>
> R2 Fa0/0 ---------------- BB2
>
>
>
> Rack2R2(config-router)#do sh run | s bgp
>
> router bgp 200
>
> no synchronization
>
> bgp log-neighbor-changes
>
> neighbor 154.2.23.3 remote-as 300
>
> neighbor 154.2.23.3 send-community
>
> neighbor 192.10.2.1 remote-as 200
>
> neighbor 192.10.2.1 send-community
>
> neighbor 192.10.2.254 remote-as 254
>
> neighbor 192.10.2.254 ebgp-multihop 255 <<------ I dont think required,
> but just put in while trying to troubleshoot
>
> neighbor 192.10.2.254 update-source BVI1
>
> neighbor 192.10.2.254 send-community
>
> no auto-summary
>
>
>
> Rack2R2#sh run int bvi1
>
> interface BVI1
>
> ip address 192.10.2.2 255.255.255.0
>
> end
>
>
>
> Rack2R2#sh run int fa0/0
>
> interface FastEthernet0/0
>
> no ip address
>
> duplex auto
>
> speed auto
>
> bridge-group 1
>
> end
>
>
>
> Rack2R2(config-router)#do sh ip bgp summ
>
>
>
>
>
> Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down
> State/PfxRcd
>
> 154.2.23.3 4 300 21 21 13 0 0
> 00:14:24 0
>
> 192.10.2.1 4 200 23 20 13 0 0 00:16:27
> 10
>
> 192.10.2.254 4 254 0 0 0 0 0 never Active
>
>
>
>
>
> Rack2R2#p 192.10.2.254
>
>
>
> Type escape sequence to abort.
>
> Sending 5, 100-byte ICMP Echos to 192.10.2.254, timeout is 2 seconds:
>
> !!!!!
>
> Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/4 ms
>
>
>
> Rack2R2#traceroute 192.10.2.254
>
>
>
> Type escape sequence to abort.
>
> Tracing the route to 192.10.2.254
>
>
>
> 1 192.10.2.254 4 msec
>
>
>
> Rack2R2(config-router)#
>
> *Dec 17 08:42:26.950: BGP: 192.10.2.254 open failed: Connection timed out;
> remote host not responding, open active delayed 34335ms (35000ms max, 28%
> jitter)
>
>
>
> Rack2R2#debu ip bgp
>
> *Dec 17 08:35:15.482: BGP: Regular scanner event timer
>
> *Dec 17 08:35:15.482: BGP: Import timer expired. Walking from 1 to 1
>
> Rack2R2#debu ip bgp
>
> *Dec 17 08:35:29.926: BGP: 192.10.2.254 open failed: Connection timed out;
> remote host not responding, open active delayed 31912ms (35000ms max, 28%
> jitter)
>
> *Dec 17 08:35:30.482: BGP: Regular scanner event timer
>
> *Dec 17 08:35:30.482: BGP: Import timer expired. Walking from 1 to 1
>
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> 

-- 
Gregory Wendel
Springfield VA, 22153

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