2 Replies Latest reply on Sep 4, 2014 11:31 AM by chi

    How to change or remove a BGP

    chi New Member

      My company is changing its MPLS carrier. I need to change the BGP AS number of an in-house router, NetVanta 3430 with OS version 18.01.01, to work with new carrier router. My current BGP configuration is as follows,

      !

      router bgp 65001

        no auto-summary

        no synchronization

        bgp router-id 192.168.1.1

        network 192.168.1.0 mask 255.255.255.0

        neighbor 10.100.100.1

          no default-originate

          soft-reconfiguration inbound

          remote-as 65000

      !

      I need to change it to:

      !

      router bgp 65000

        no auto-summary

        no synchronization

        bgp router-id 192.168.1.1

        network 192.168.1.0 mask 255.255.255.0

        neighbor 10.100.100.1

          no default-originate

          soft-reconfiguration inbound

          remote-as 65001

      !

        • Re: How to change or remove a BGP
          jayh Hall_of_Fame

          You can only have one AS on a router at a time.  You'll need to remove the BGP configuration and re-add it. "No out" the old BGP configuration and then you can implement the new one.  Something like this should work:

           

           

          no router bgp 65001

          !

          router bgp 65000

            no auto-summary

            no synchronization

            bgp router-id 192.168.1.1

            network 192.168.1.0 mask 255.255.255.0

            neighbor 10.100.100.1

              no default-originate

              soft-reconfiguration inbound

              remote-as 65001

          !

           

          Obviously, don't do this remotely over the BGP network or you'll lock yourself out.