cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
Announcements
170
Views
0
Helpful
3
Replies
Highlighted
Beginner

received BGP routes not populating table

I have an ISR 4451 running ios 15.5(2)S1c.  It has a number of eBGP peers which have been working fine for ages.  Ive added a new BGP peer simply via

router bgp <my-as>

 bgp log-neighbor-changes

 neighbor 10.66.250.202 remote-as 12076

 

sh ip bgp summ shows the peering as good.

When i run "show ip bgp nei 10.66.250.202 received-routes" it correctly lists the advertisements i expect.

However "show ip route bgp" does not list these routes. What troubleshooting steps should i take to see why the received routes arent being loaded into the local table?

Everyone's tags (1)
3 REPLIES 3
Enthusiast

Re: received BGP routes not populating table

Hi

The command show ip bgp neighbour 10.66.250.202 received-routes shows you bgp prefixes from neighbor 10.66.250.202 before applying all filters. So, if you don't see prefixes in bgp table what you expect look at the inbound filters for neighbor 10.66.250.202

Everyone's tags (1)
VIP Mentor

Re: received BGP routes not populating table

Hello,

 

do you have access to the eBGP peering configuration of the other side (the neighbor) ? Can you post that ?

VIP Advisor

Re: received BGP routes not populating table

Hello


@jmcgrady1 wrote:

When i run "show ip bgp nei 10.66.250.202 received-routes" it correctly lists the advertisements i expect.

However "show ip route bgp" does not list these routes. What troubleshooting steps should i take to see why the received routes arent being loaded into the local table?


As its been stated already seeing prefixes in the bgp table doesn't necessarily mean those routes will make into the routing table as by default only the best calculated route(s) to these prefixes are accepted by the router.

 

Can you post the output of the bpg table pertaining t those routes?
sh ip bgp
sh ip bgp | in xxxxx



kind regards
Paul

Please rate and mark posts accordingly if you have found any of the information provided useful.
It will hopefully assist others with similar issues in the future
CreatePlease to create content
Content for Community-Ad
July's Community Spotlight Awards