Technical data

Brocade 6910 Ethernet Access Switch Diagnostic Guide 23
53-1002348-02
Spanning Tree Protocol and derivatives
Forward Transitions : 2
Admin Edge Port : Auto
Oper Edge Port : Disabled
Admin Link Type : Auto
Oper Link Type : Point-to-point
Flooding Behavior : Enabled
Spanning-Tree Status : Enabled
Loopback Detection Status : Enabled
Loopback Detection Release Mode : Auto
Loopback Detection Trap : Disabled
Loopback Detection Action : Block
Root Guard Status : Disabled
BPDU Guard Status : Disabled
BPDU Guard Auto Recovery : Disabled
BPDU Guard Auto Recovery Interval : 300
BPDU Filter Status : Disabled
...
This command displays global settings for MSTP.
Console# show spanning-tree
Spanning Tree Information
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Spanning Tree Mode : MSTP
Spanning Tree Enabled/Disabled : Enabled
Instance : 0
VLANs Configured : 1-4093
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 : 32768.0.00E00C109000
Current Root Port(Eth) : 1/1
Current Root Cost : 100000
Number of Topology Changes : 2
Last Topology Change Time (sec.): 46
Transmission Limit : 3
Path Cost Method : Long
Flooding Behavior : To VLAN
Cisco Prestandard : Disabled
---------------------------------------------------------------
Eth 1/ 1 Information
---------------------------------------------------------------
Admin Status : Enabled
Role : Root
State : Forwarding
External Admin Path Cost : 0
Internal Admin Path Cost : 0
External Oper Path Cost : 100000
Internal Oper Path Cost : 100000
Priority : 128
Designated Cost : 0
Designated Port : 128.9
Designated Root : 32768.0.00E00C109000
Designated Bridge : 32768.0.00E00C109000