0

My server is using Bird to get routing from the top switch. ( it has ecmp arch)

# birdc s route protocol routing1
BIRD 1.6.3 ready.
0.0.0.0/0         via 10.171.1.2 on p1  ! (100) 
10.171.10.0/24    via 10.171.1.2 on p1  * (100) 
10.171.11.0/24    via 10.171.1.2 on p1  * (100)
10.171.12.0/24    via 10.171.1.2 on p1  * (100) 
10.171.13.0/24    via 10.171.1.2 on p1  * (100)

birdc s route protocol routing2


BIRD 1.6.3 ready.
0.0.0.0/0         via 10.171.2.2 on p2  ! (100) 
10.171.10.0/24    via 10.171.2.2 on p2  * (100) 
10.171.11.0/24    via 10.171.2.2 on p2  * (100)
10.171.12.0/24    via 10.171.2.2 on p2  * (100) 
10.171.13.0/24    via 10.171.2.2 on p2  * (100)

  1. I changed Top switch's LP value to make traffic flows as a one path.

  2. Revert Lp Vvlue to Original value.

  3. In some nodes, Duplicate Routings are created

# ip ro

10.171.10.0/24 proto bird
        nexthop via 10.171.1.2 dev p1 
        nexthop via 10.171.2.2 dev p2 
10.171.10.0/24 proto bird metric 32
        nexthop via 10.171.1.2 dev p1
        nexthop via 10.171.2.2 dev p2

I guess this issue occurs because new routes are being received without updating the existing routes. I would like to verify this and seek advice from anyone who has experienced this phenomenon

jay
  • 1

0 Answers0