Allied Telesis AT-DC2552XS - Manual (Page 349)

AT-DC2552SX Switch Command Line Interface User’s Guide
Section II: Layer 2 Switching 349
Role Displays the port role. The options are:
 Disabled
 Alternate
 Backup
 Root
 Designated
 LoopGuard
State Displays the state of the port. The options are:
 Disabled
 Discarding
 Learning
 Forwarding
Designated External
Path Cost Displays the path cost, notified by the
designated port, that belongs to another
region. It is the path cost of the region that the
CIST root bridge belongs to.
Internal Path Cost Displays the path cost, notified by the
designated port, that belongs to the same
region. It is the path cost of the CIST regional
root bridge.
Configurated Path
Cost Displays the path cost configured on the port.
Designated Port Id Displays the designated port ID for the
Spanning Tree Protocol.
CIST Priority Displays the port priority of the port.
CIST Root Displays the bridge ID of the CIST root bridge.
Designated Bridge Displays the bridge ID of the designated
bridge.
Message Age Displays the time that it takes to transmit a
message from the root bridge, The time
depends upon the distance to the root bridge.
Max Age Displays the maximum aging time for the root
bridge.
CIST Hello Time Displays the hello time of the root bridge.
Table 59. SHOW SPANNING-TREE Command for MSTP (Continued)
Field Description