08-04-2008 04:53 AM - edited 03-06-2019 12:35 AM
I am seeing the following lines in Wireshark, but the priority I am seeing is that of the root bridge. Does it matter that I am seeing these wireshark captures on my access switches?
27 8.367618 Cisco_0a:ff:96 Cisco_0a:ff:96 LOOP Reply
28 10.000372 Cisco_0a:ff:96 Spanning-tree-(for-bridges)_00 STP RST. Root = 8192/00:d0:02:d5:74:15 Cost = 23 Port = 0x8016
29 12.000442 Cisco_0a:ff:96 Spanning-tree-(for-bridges)_00 STP RST. Root = 8192/00:d0:02:d5:74:15 Cost = 23 Port = 0x8016
30 14.000520 Cisco_0a:ff:96 Spanning-tree-(for-bridges)_00 STP RST. Root = 8192/00:d0:02:d5:74:15 Cost = 23 Port = 0x8016
31 16.000604 Cisco_0a:ff:96 Spanning-tree-(for-bridges)_00 STP RST. Root = 8192/00:d0:02:d5:74:15 Cost = 23 Port = 0x8016
32 18.000688 Cisco_0a:ff:96 Spanning-tree-(for-bridges)_00 STP RST. Root = 8192/00:d0:02:d5:74:15 Cost = 23 Port = 0x8016
33 18.367969 Cisco_0a:ff:96 Cisco_0a:ff:96 LOOP Reply
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08-04-2008 09:14 AM
No, just because STP is running on the access ports;-) Looks perfectly normal.
Regards,
Francois
08-04-2008 05:35 AM
Hi,
This is because spanning-tree is enabled on access port too.
In hope this helps.
Best regards.
Massimiliano.
08-04-2008 05:43 AM
Would these captures be the result of Portfast/BPDUguard running?
08-04-2008 09:14 AM
No, just because STP is running on the access ports;-) Looks perfectly normal.
Regards,
Francois
08-04-2008 10:26 AM
It's normal. STP is sent via a multicast MAC address so all hosts on the network will see the STP messages assuming it's not disabled for that broadcast domain.
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