HP BladeSystem bc2000 - Blade PC, Reference Manual, Page: 323 / 434

HP PC Blade Switch CLI Reference Guide www.hp.com 22-27
Spanning-Tree Commands
show spanning-tree
The show spanning-tree Privileged EXEC mode command displays spanning-tree
configuration.
Syntax
show spanning-tree [ethernet interface -number | port-channel port-channel-number ]
[ instance instance-id]
show spanning-tree [ detail ] [ active | blockedports ] [ instance instance-id]
show spanning-tree mst-configuration
Parameters
n
interface -number — A valid Ethernet port.
n
port-channel-number — A valid port channel number.
n
detail — Indicates detailed information.
n
active — Indicates active ports only.
n
blockedports — Indicates blocked ports only.
n
mst-configuration — Indicates the MST configuration identifier.
n
instance-id — Specifies ID of the spanning tree instance.
Default Setting
This command has no default configuration.
Command Mode
Privileged EXEC mode
Command Usage
The mstp-rstp feature is enabled by default, so the example below illustrates how the show
spanning-tree command output can be understood. Use the following guidelines when
interpreting these results:
n
Ignore the instrumented output from MST 0 and 15, they are for internal use only when
mstp-rstp (PVST-Interoperability) is enabled.
n
Instrumentation is only valid for switch port members of a VLAN that is a member of that
specific MST instance.
n
If out-of-band management is desired, follow these steps:
1.Add a third VLAN to the VLAN database.
2.Create MST Instance 3.
3.Remove the new VLAN from MST Instance 15.
4.Add the new VLAN to MST Instance 3.
5.Save your changes.
It is important to isolate the new VLAN to its own MST instance to preserve limited
PVST/RPVST interoperability.