Asynchronous routing happening in ospf

[moidinmkm]

Hello All, In my network I could see asymmetric routing and need help to resolve the issue

using ospf and costs are same for both

1F#sh int Gi3/1

  5 minute input rate 116000 bits/sec, 61 packets/sec

  5 minute output rate 7185000 bits/sec, 3249 packets/sec

2F#sh int GigabitEthernet2/1

5 minute input rate 109000 bits/sec, 88 packets/sec

  5 minute output rate 7147000 bits/sec, 3529 packets/sec

Please help  me.

[Joseph W. Doherty]

If costs are the same, as you consider that an issue, change one interface's cost.  Can be done using the IP ospf cost statement, or also often indirectly through the interface bandwidth statement.

A change of even one, should break equal cost.

[moidinmkm]

is it possible in production environment, what would be the better solution  ?

sh ip ospf interface GigabitEthernet1/2
GigabitEthernet1/2 is up, line protocol is up (connected)
Internet Address X/30 Area 0
Process ID 2, Router ID x Network Type BROADCAST, Cost: 1
Transmit Delay is 1 sec, State BDR, Priority 1

GigabitEthernet2/2 is up, line protocol is up (connected)
Internet Address Y/30 Area 0
Process ID 2, Router ID Y Network Type BROADCAST, Cost: 1
Transmit Delay is 1 sec, State BDR, Priority 1

[Joseph W. Doherty]

Is it possible in production? It is, although it's a routing change that will replicate throughout the OSPF area.  Some shops would only allow this kind of maintenance during planned maintenance windows.

As to which approach is better, much depends on your shop's policies, but I would recommend changing the IP ospf cost statement, as it's more precise, and assuming you don't normally use it, it helps make clear this is a "special" or exceptional case.

BTW, why is this a problem?

[moidinmkm]

 is facing Slowness in Network and we are suspecting due to asymmetric routing

we could identified that the return traffic is learning via standby path and forward is on Primary