Intel BLADE SERVER IXM5414E - Manuale (Pagina 221)

198 Intel® Blade Server Ethernet Switch Module IXM5414E: Installation and User’s Guide:A Guide for Technically
Designated Bridge
The bridge containing the designated port.
Designated Port Identifier
Port used to forward frames towards the root bridge for this CST on this LAN. It is
the port with the lowest cost path to the bridge and the highest port priority.
Topology Change Acknowledgement
Value of flag in next Configuration BPDU transmission indicating if a topology
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 Path Cost
The configured path cost for this port.
show spanningtree cst port summary
Use this command to display the status of one, some or all ports within the CST. The parameter
<port/listofports/all> indicates the port or ports to be affected.
Format show spanningtree cst port summary <port/listofports/all>
Port The interface being displayed.
STP Mode Whether the STP is enabled or disabled on the port.
STP State The port’s current spanning tree state. This state controls what action a port takes on
receipt of a frame. Possible states are: disabled, blocking, listening, learning,
forwarding and broken.
Port Role The role of the specified port within the spanning tree.
Link Status The operational status of the link. Possible values are “Up” or “Down”.
Link Trap The link trap configuration for the specified interface.
Spanning tree port commands
config spanningtree port migrationcheck
Use this command to force the specified port to transmit RST BPDUs. The <port> parameter
specifies the port(s) to be affected. To set the migration check for all ports with a single command,
<all> can be specified. Note that the forceversion parameter for the switch must be set to 802.1w for
this command to work.
Default disable
Format config spanningtree port migrationcheck <port/listofports/all> <enable/disable>