[f-nsp] Spanning tree on brocade

Nick Cutting ncutting at edgetg.com
Tue May 17 16:12:02 EDT 2016


I think I have found my answer – as this switch is not participating in spanning tree – I believe that :

STP configured to ON, priority is level0

Is forwarding the BPDU’s unmodified.

Would I be correct in this assumption? I see the correct Bridge ID’s as if this switch is not there.

From: Nick Cutting
Sent: Tuesday, May 17, 2016 3:26 PM
To: Nick Cutting; Eldon Koyle
Cc: foundry-nsp at puck.nether.net
Subject: RE: [f-nsp] Spanning tree on brocade

Now I have another switch – that has no IEEE spanning tree, No 802w, and no pvst configured.

however, it says it is enabled on the port??

10GigabitEthernet23 is up, line protocol is up
  Hardware is 10GigabitEthernet, address is 748e.f821.57d3 (bia 748e.f821.57e9)
  Configured speed 10Gbit, actual 10Gbit, configured duplex fdx, actual fdx
  Member of L2 VLAN ID 501, port is untagged, port state is FORWARDING
  BPDU guard is Disabled, ROOT protect is Disabled
  Link Error Dampening is Disabled
  STP configured to ON, priority is level0

Now – the loops prevention is on the otherside – and they are receiving BPDU’s on this switch – how can this be possible with no stp config?

Can someone please elaborate on the port level spanning tree?

Thanks !
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