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VLAN line status on link failure

dominic.caron
Level 5
Level 5

Hi,

I have a problem between pair of cat 6509 and a 3750 stack

The 6509 are linked to my core and have a line to my access layer 3750. When my physical link goes down on one of the 6509, the vlan interface are still up, blackhole-ing half of my traffic. The vlan are only present on this link.(not on any trunk)

1 Reply 1

dominic.caron
Level 5
Level 5

Hi,

More info, there is no STP running on the vlan but the L3 is up. My bet is L2 and L3 sync is not working properly. Any advises?

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