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

[i1wan]

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?

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

Thanks,

[p0wertje · Accepted solution]

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

[i1wan]

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>

[i1wan]

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