mst behaviour

Hi,

Two switches are connected in my network with back-to-back port-channels.

port-channel 1 allows vlans 1-5 and port-channel 2 allows vlan 6 on both
the switches.

spanning-tree mode mst with instance 0 is configured globally.

What i find is by default, switch 2 has blocked the port-channel 1
interface for vlan 6.

i am slightly confused with this behavior , is it not based on vlans
per-interface , which should by default open Port-channel 1 for vlan 6 ?

when i place it in different instance, it comes into forwarding state
automatically

Thanks

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Received on Fri Jun 13 2014 - 19:24:48 ART