Administrator Guide

Interface Designated
Name PortID Prio Cost Sts Cost Bridge ID PortID
---------- ------- ---- ------ ----------- ------ ------ ------
Po 1 8.2 8 1 FWD 0 32768 0001.e88a.fdb3 8.2
Te 3/20 8.317 8 4 EDS 1 32768 001e.c9f1.00cf 8.317
Te 4/20 8.373 8 4 FWD 1 32768 001e.c9f1.00cf 8.373
Te 4/21 8.374 8 4 FWD 1 32768 001e.c9f1.00cf 8.374
Dell#show ip int br ten 3/20
Interface IP-Address OK Method Status Protocol
TenGigabitEthernet 3/20 unassigned YES None up up
Dell#
Global BPDU Filtering
When BPDU Filtering is enabled globally, it stops transmitting BPDUs on the operational port fast enabled ports by default.
When it receives BPDUs, it automatically participates in the spanning tree. By default global bpdu ltering is disabled.
Figure 126. BPDU Filtering Enabled Globally
Interface BPDU Filtering
When BPDU Filtering is enabled on an interface, it should stop sending and receiving BPDUs on the port fast enabled ports.
When BPDU guard and BPDU lter is enabled on the port, then BPDU lter takes the highest precedence. By default bpdu ltering
on an interface is disabled.
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Spanning Tree Protocol (STP)