CLI Reference Guide-R02

Chapter 17 | Spanning Tree Commands
– 497 –
spanning-tree
system-bpdu-flooding
This command configures how the system floods BPDUs to other ports when
spanning tree is disabled globally on the switch or disabled on specific ports. Use
the no form to restore the default.
Syntax
spanning-tree system-bpdu-flooding {to-all | to-vlan}
no spanning-tree system-bpdu-flooding
to-all - Floods BPDUs to all other spanning-tree disabled ports on the
switch.
to-vlan - Floods BPDUs to all other spanning-tree disabled ports within the
receiving port’s native VLAN (i.e., as determined by port’s PVID).
Default Setting
Floods to all other spanning-tree disabled 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 to-all
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)
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: 1-18)
trunk-id - Trunk index (Range: 1-12)