Configuring the Switch
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3
•Root Hold Time – The interval (in seconds) during which no more than tw o bridge
configuration protocol data units shall be transmitted by this node.
• Max hops – The max number of hop counts for the MST region.
• Remaining hops – The remaining number of hop counts for the MST instance.
• Transmission limit – The minimum interval between the transmission of
consecutive RSTP/MSTP BPDUs.
• Path Cost Method – The path cost is used to determine the best path between
devices. The path cost method is used to determine the range of values that can
be assigned to each interface.
Web – Click Spanning Tree, STA, Information.
Figure 3-62. STA Information
CLI
– This command displays global STA settings, followed by settings for each port
.
Note: The current root port and current root cost display as zero when this device is not
connected to the network.
Console#show spanning-tree 4-177
Spanning-tree information
---------------------------------------------------------------
Spanning tree mode :MSTP
Spanning tree enable/disable :enable
Instance :0
Vlans configuration :1-4094
Priority :32768
Bridge Hello Time (sec.) :2
Bridge Max Age (sec.) :20
Bridge Forward Delay (sec.) :15
Root Hello Time (sec.) :2
Root Max Age (sec.) :20
Root Forward Delay (sec.) :15
Max hops :20
Remaining hops :20
Designated Root :32768.0.0000ABCD0000
Current root port :1
Current root cost :200000
Number of topology changes :1
Last topology changes time (sec.):13380
Transmission limit :3
Path Cost Method :long