Multiple Instance Spanning-Tree Operation

Displaying MSTP Statistics and Configuration

ProCurve(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

Switch’s Spanning Tree Configuration and Identity of VLANs Configured in the Switch for the IST Instance

Identifies the overall spanning-tree root for the network.

Lists the switch’s MSTP root data for connectivity with other regions and STP or RSTP devices.

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

Identifies the spanning-tree root for the IST Instance for the region.

Internal Spanning Tree Data (IST Instance) for the region in which the Switch Operates

Identifies the ports with BPDU protection and BPDU filtering enabled.

Yes means the switch is operating the port as if it is connected to switch, bridge, or end node (but not a hub).

 

 

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

For Edge, No (admin-edge-port operation

 

disabled)

 

A5

100/1000T

Auto

128

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-portdescription under

“Configuring MSTP Per-Port Parameters” on page 4-

Figure 4-15. Example of Common Spanning Tree Status

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