3 Replies Latest reply on Oct 27, 2015 1:37 PM by i1wan

    ISIS routing not working on the ESG (together with IOS and JunOS devices)

    i1wan Novice
    vExpert

      Hi,

       

      I have build a pretty awesome routing setup but I have a strange error.

      As you can see in my diagram (also PDF included in the attachment for a better resolution) you see that:

       

      • the ESG is NOT getting routes advertised from the IOS and JunOS devices.
      • the IOS and JunOS devices are exchanging routes with each other
      • the adjacency between the IOS and JunOS device is fine (what is expected if they exchange routes)
      • the adjacency between IOS / JunOS and the ESG is also fine (but no route of both IOS and JunOS are received)
      • OSPF is working fine (routes are received connect by the ESG)


      Does anyone experienced this problem before?


      Can someone point me in the right direction?

       

       

       

      ESG-routing-OSPF-ISIS.jpeg

      I have also included the log file where there is no notion of that routes are received...

       

      Thanks,

        • 1. Re: ISIS routing not working on the ESG (together with IOS and JunOS devices)
          Chris Mentjox Enthusiast

          Hi,

           

          Try setting metric-style wide

          cisco:

          conf t

          router isis

          metric-style wide

           

          Juniper:

          set protocols isis level 2 wide-metrics-only

          set protocols isis level 1 wide-metrics-only

          • 2. Re: ISIS routing not working on the ESG (together with IOS and JunOS devices)
            i1wan Novice
            vExpert

            Hi,

             

            Thanks p0wertje!

             

            This was indeed the correct solution

             

            My ESG shows the ISIS routes now:

             

            LAB-ESG-01-0> show ip route

             

            Codes: O - OSPF derived, i - IS-IS derived, B - BGP derived,

            C - connected, S - static, L1 - IS-IS level-1, L2 - IS-IS level-2,

            IA - OSPF inter area, E1 - OSPF external type 1, E2 - OSPF external type 2,

            N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2

             

            Total number of routes: 14

             

            C       10.10.105.0/24       [0/0]         via 10.10.105.254  

            C       10.10.106.0/24       [0/0]         via 10.10.106.254  

            C       10.10.107.0/24       [0/0]         via 10.10.107.254  

            C       10.10.108.0/24       [0/0]         via 10.10.108.254  

            O       10.11.11.0/24        [30/2]        via 10.10.105.253  

            C       192.168.11.0/24      [0/0]         via 192.168.11.254 

            O   E2  192.168.12.0/24      [110/1]       via 192.168.11.253 

            O   E2  192.168.13.0/24      [110/1]       via 192.168.11.253 

            O   E2  192.168.14.0/24      [110/1]       via 192.168.11.253 

            O       192.168.100.1/32     [30/2]        via 10.10.106.100  

            i   L1  192.168.101.0/24     [115/10]      via 10.10.107.100  

            i   L1  192.168.101.1/32     [115/10]      via 10.10.107.100  

            i   L1  192.168.110.0/24     [115/20]      via 10.10.107.101  

            B       192.168.120.0/24     [200/0]       via 10.10.108.101  

            LAB-ESG-01-0>

            • 3. Re: ISIS routing not working on the ESG (together with IOS and JunOS devices)
              i1wan Novice
              vExpert

              For anyone interested in this topic, I have created a video with how it works: