• Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 448
  • Last Modified:

Cisco BGP how to

New to routers and BGP. I'm configuring a new router so it has the same config as an old router. I was able to add a new BGP neighbor but I cant get the 'no synchronization' and 'no auto-summary' to show up.

R1<config>#router bgp 65001
R1<config-router>#neighbor 172.16.1.1 remote-as 65001
the above worked

R1<config>#router bgp 65001
R1<config-router>#no synchronization
this seemed like it worked but when I sh run I dont see it. Any ideas??

Old router is a 2600, new one is a 2900 running 15.2(3)T
0
cb_it
Asked:
cb_it
1 Solution
 
rauenpcCommented:
Cisco probably changed the default behavior. Verify with a "show ip protocols". If IGP sync is disabled and doesn't show in the running-config, then it's just a change of default commands. Same goes for auto summary

RTR_INTERNET_01#sh ip protocols

Routing Protocol is "bgp XXXX"
  Outgoing update filter list for all interfaces is not set
  Incoming update filter list for all interfaces is not set
 IGP synchronization is disabled
  Automatic route summarization is disabled

  Neighbor(s):
    Address          FiltIn FiltOut DistIn DistOut Weight RouteMap
    X.X.X.X                                          
  Maximum path: 1
  Routing Information Sources:
    Gateway         Distance      Last Update
    X.X.X.X           20      13w6d
  Distance: external 20 internal 200 local 200

RTR_INTERNET_01#
0
 
cb_itAuthor Commented:
This worked. I do see the 2 lines

IGP synchronization is disabled
Automatic route summarization is disabled

when I do a sh ip protocols. I guess on the older router it would show 'no auto-summary' in the full config, now it doesnt. Thanks for the quick help!
0
 
ddiazpCommented:
They will not show up as they're now default. As with other properties, it will not show if those values are system default.
0
Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

Join & Write a Comment

Featured Post

Free Tool: Site Down Detector

Helpful to verify reports of your own downtime, or to double check a downed website you are trying to access.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Tackle projects and never again get stuck behind a technical roadblock.
Join Now