Figure 3-20. Example of Common Spanning Tree Status
HP Switch(config)# show spanning-tree
Multiple Spanning Tree (MST) Information
STP Enabled : Yes
Force Version : MSTP-operation
IST Mapped VLANs : 1,66
Switch MAC Address : 0004ea-5e2000
Switch Priority : 32768
Max Age : 20
Max Hops : 20
Forward Delay : 15
Topology Change Count : 0
Time Since Last Change : 2 hours
CST Root MAC Address : 00022d-47367f
CST Root Priority : 0
CST Root Path Cost : 4000000
CST Root Port : A1
IST Regional Root MAC Address : 00883-028300
IST Regional Root Priority : 32768
IST Regional Root Path Cost : 200000
IST Remaining Hops : 19
Protected Ports : A4
Filtered Ports : A7-A10
| Prio | Designated Hello
Port Type | Cost rity State | Bridge Time PtP Edge
---- --------- + --------- ----- ---------- + ------------- ----- --- ----
A1 100/1000T | Auto 128 Forwarding | 000883-028300 9 Yes No
A2 100/1000T | Auto 128 Blocked | 0001e7-948300 9 Yes No
A3 100/1000T | Auto 128 Forwarding | 000883-02a700 2 Yes No
A4 100/1000T | Auto 128 Disabled |
A5 100/1000T | Auto 128 Disabled |
. . . . .
. . . . .
Switch’s Spanning Tree Configuration
and Identity of VLANs Configured in the
Switch for the IST Instance
Lists the switch’s MSTP root data for
connectivity with other regions and STP
or RSTP devices.
Internal Spanning Tree Data (IST
Instance) for the region in which the
Switch Operates
For Edge, No (admin-edge-port operation disabled)
indicates the port is configured for connecting to a
LAN segment that includes a bridge or switch. Yes
indicates the port is configured for a host (end node)
link. Refer to the admin-edge-port description under
“Configuring MSTP Per-Port Parameters” on page 3-
Yes means the switch is operating the
port as if it is connected to switch, bridge,
or end node (but not a hub).
Identifies the overall spanning-tree root
for the network.
Identifies the spanning-tree root for the
IST Instance for the region.
Identifies the ports with BPDU protection
and BPDU filtering enabled.
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