Weird one. I put a stack of c9300's into service last week, did 'no switchport' on the uplinks to core routers, subinterfaced etc but only one of the uplink ports worked. These are 8x10g SFP modules.
I went back to site today and changed the uplinks to trunks, and put a L3 SVI on the switch instead and it worked first time.
Before that I changed the modules around, swapped the sfp's, changed fibres etc with no joy.
I know behind the scenes a routed port Vs a vlan svi is the same thing, but any ideas why this wouldn't work with subinterfaces?
No comments:
Post a Comment