Quick Reference Guide

Spanning Tree (STP) Commands | 323
Port Identifier The port identifier for this port within the CST.
Port Priority The priority of the port within the CST.
Port Forwarding State The forwarding state of the port within the CST.
Port Role The role of the specified interface within the CST.
Port Path Cost The configured path cost for the specified interface.
Designated Root Identifier of the designated root for this port within the CST.
Designated Port Cost Path Cost offered to the LAN by the Designated Port.
Designated Bridge The bridge containing the designated port
Designated Port Identifier Port on the Designated Bridge that offers the lowest cost
to the LAN
Topology Change Acknowledgement Value of flag in next Configuration Bridge Pro-
tocol Data Unit (BPDU) transmission indicating if a topol-
ogy change is in progress for this port.
Hello Time The hello time in use for this port.
Edge Port The configured value indicating if this port is an edge port.
Edge Port Status The derived value of the edge port status. True if operating
as an edge port; false otherwise.
Point To Point MAC Status Derived value indicating if this port is part of a point to
point link
.
CST Regional Root The regional root identifier in use for this port.
CST Port Cost The configured path cost for this port.
spanning-tree msti
This command sets the path cost or port priority for this port within the multiple spanning tree instance
(MSTi) or in the common and internal spanning tree.
Syntax
spanning-tree msti {0 {cost 1-200000000 | external-cost 1-200000000 | priority 0-240} |
1-63 {cost 1-200000000 | priority 0-240}}
no spanning-tree msti sets the value of the selected option to its default.
If the msti parameter corresponds to an existing multiple spanning tree instance, then the
configurations are done for that MSTi. If, however, 0 (defined as the default CIST ID) is passed as the
msti, then the configurations are performed for the common and internal spanning tree instance.
If the cost token is specified, this command sets the path cost for this port within a multiple spanning
tree instance or the common and internal spanning tree instance, depending on the msti parameter. The
path cost is specified as a number in the range of 1 to 200000000.
Parameters
0 or 1-63
Enter an integer between 0 and 63 to specify an instance.
{cost 1-200000000 |
external-cost 1-200000000 |
priority 0-240}
Specify a value for either cost (port cost), external-cost
(external port cost for port used by a MST), or priority (port
priority value, in increments of 16 (default = 128). See below.
Note that the
external-cost parameter is only an option for the 0
keyword.