OSPF works great until I turn on jumbo frames. At that point it stops dynamic routing. The second you turn off jumbo, it immediately starts routing. It’s easily reproducible. Could someone at Alta take a look at this?
OSPF typically has an MTU check. Is your OSPF session going down also?
I matched the MTU between the Route 10 and the core switch it’s connected to. When that didn’t work I connected to the cli and ran the mtu-ignore command. Still doesn’t route.
Understood but is your OSPF session up?
Yes the ospf session stays up, it just removes the routes from the Route 10 routing table. It puts them back when I turn off the jumbo frames toggle.
Since the R10 10g port is connected to a 10g port on the core switch, I would like to use jumbo if possible.