Brocade FastIron Ethernet Switch Platform and Layer 2 Switching Configuration Guide - Manual (Page 452)

spanning-tree designated-protect
Disallows the designated forwarding state on a port in STP 802.1d or 802.1w. The no form of this
command allows the designated forwarding state on a port in STP 802.1d or 802.1w.
Syntax spanning-tree designated-protect
no spanning-tree designated-protect
Command Default STP (802.1d or 802.1w) can put a port into designated forwarding state.
Parameters None
Modes Interface configuration mode
Usage Guidelines If STP tries to put a port into designated forwarding state, the device puts this port into the designated
inconsistent STP state. This is effectively equivalent to the listening state in STP in which a port cannot
forward any user traffic. When STP no longer marks this port as a designated port, the port is
automatically removed from the designated inconsistent state.
NOTE
You use this command to enable Designated Protection at the port-level while the designated
inconsistent state is a per-STP-instance, per-port state.
NOTE
You cannot enable Designated Protection and Root Guard on the same port.
Examples The following example shows that the designated forwarding state is disallowed on an Ethernet
interface 1/1/1.
Brocade(config)# ethernet interface 1/1/1
Brocade(config-if-e1000-1/1/1)# spanning-tree designated-protect
History
Release version Command history
07.3.00g This command was introduced.
spanning-tree designated-protect
452 FastIron Ethernet Switch Platform and Layer 2 Switching Configuration Guide
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