Chapter 19
| Spanning Tree Commands
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Default Setting
Floods to all other ports in the same VLAN.
Command Mode
Global Configuration
Command Usage
The spanning-tree system-bpdu-flooding command has no effect if BPDU
flooding is disabled on a port (see the spanning-tree port-bpdu-flooding
command).
Example
Console(config)#spanning-tree system-bpdu-flooding
Console(config)#
spanning-tree tc-prop This command configures a topology change propagation domain. Use the no
form to remove a propagation domain.
Syntax
spanning-tree tc-prop group group-id {ethernet interface |
port-channel trunk-id}
group-id - Group identifier. (Range: 1-255)
interface - unit/port
unit - Unit identifier. (Range: 1-8)
port - Port number or list of ports. To enter a list, separate
nonconsecutive port identifiers with a comma and no spaces; use a
hyphen to designate a range of ports. (Range: 1-28/52)
trunk-id - Trunk index (Range: 1-16)
Default Setting
All ports and trunks belong to a common group.
Command Mode
Global Configuration
Command Usage
A port can only belong to one group. When an interface is added to a group, it is
removed from the default group. When a TCN BPDU or BPDU with the TC flag set is
received on an interface, that interface will only notify members in same group to
propagate this topology change.