5308xl and STP

[Konstantin_5]

How would I block STP BPDU ?
I'm trying:
>filter multicast 0180c2-000000 drop c2
but answer:
Unable to add filter.
why ?
(stp disabled)

[Marcus_20]

When STP is disabled the switch does not propagete STP BPDUs... Thus a Layer 2 interface in the disabled state does not participate in frame forwarding or in the spanning tree. An interface in the disabled state is nonoperational.
/marcus

[Dmitry G. Spitsyn]

RFC 1700 Assigned Numbers tells us that, for IP multicast packets, the upper 24 bits
of the Ethernet address are always 0x01005E. HP Procurve switches
look for 0x01005E at the beginning of the destination MAC address in order to
identify IP multicast packets that it should consider for pruning.

BR,
Dmitry.

[Konstantin_5]

01-80-C2-00-00-00-Spanning tree (for bridges)
01-80-C2-00-00-01 through 01-80-c2-00-00-0f -802.1 alternate Spanning multicast
(RFC-1700)
01-00-5E-00-00-00 through 01-00-5E-7F-FF-FF -DoD Internet Multicast (RFC-1112)

[Dmitry G. Spitsyn]

Absolutely !!!
It means that the multicast addresses mentioned by you are not considered for pruning by multicast filtering!

BR,
Dmitry