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spanning tree protocol

spanning tree protocol

Danial_Jalil
New Contributor
I have disabled spanning tree everywhere on vlans, interfaces yet when i generate PFC pause frames some spanning tree packets are also captured. Can anybody help me how to turn them off.

following is the capture of wireshark:

0.045006 ExtremeN_97:e6:79 Spanning-tree-(for-bridges)_01 MAC Control MAC CTRL 64 MAC CLASS BASED FLOW CONTROL PAUSE Spanning-tree-(for-bridges)_01 ExtremeN_97:e6:79

3 REPLIES 3

Danial_Jalil
New Contributor
Thank you for your help guys!@Oscar@Erik

Erik_Auerswald
Contributor II
As Oscar, I'd say that is a result of Wireshark using names for MAC addresses. Thus this seems to be related to STP, while it just uses the same MAC address. The line shown above clearly shows a PFC frame, not an STP BPDU. To confirm this, you can drill into the frame data inside Wireshark.

OscarK
Extreme Employee
PFC pause frames are also send to the same dmac as STP, 01:80:c2:00:00:01 so I think wireshark accidently sees these as STP.
GTM-P2G8KFN