Delete links before adding

[victorcionca]

Hi all,

I noticed a sporadic issue where adding a link fails because of route conflicts. It looks like a route to the same subnet as the address that is being added already exists on the node being imported by bird. In such cases, docker connect fails and the emulation is immediately stopped.

I think it would be better to first perform the delete operations then perform the add. Delete will clear the subnet from the routing table and the add link is no longer affected.

Regards,
Victor

[jttan3]

Hi, it seems like I am having the same problem. Does changing the order work as a solution or have you found a better fix?
Is there any reason for the add to be purposefully before the delete, maybe to maintain connectivity?
Its weird because half of the times, the add and deletes work without error. The other half I get that list out of range cause the connect fails.
My coworker also have never had any problems with this running on his own computer. Could it be some wrong docker, bird, etc version or setup?
Also, I havent checked the code yet, but what happens when there are more than one satellites connected to the same ground station?

[xiex386]

Thanks for your feedback and advice.
Actually, the order has changed to delete links first in the branch dev.
This branch rewrites the container backend for better performance, but lacks enough stability and compatibility to merge into the main branch.
You can try these latest branches (dev, arbitrary-topo).