Performing Mcheck; Configuring The Vlan Ignore Feature - HP A5830 Configuration Manual

Step...
4. Enter
interface
view or
port
group
view
5. Enable the spanning tree feature for
the port or group of ports

Performing mCheck

If a port on a device that is running MSTP, RSTP, or PVST connects to an STP device, this port transitions to
the STP-compatible mode automatically. However, it cannot transition back to the original mode
automatically under the following circumstances:
 The STP device is shut down or removed.
 The STP device transitions to the MSTP, RSTP, or PVST mode.
To forcibly transition the port to operate in the original mode, perform an mCheck operation.
The following methods for performing mCheck produce the same result.
Performing mCheck globally
To perform global mCheck:
Step...
1. Enter system view
2. Perform mCheck
Performing mCheck in interface view
An mCheck operation takes effect on a device that operates in MSTP, RSTP, or PVST mode.
To perform mCheck in interface view:
Step...
1. Enter system view
2. Enter Layer 2 Ethernet interface view
or Layer 2 aggregate interface view
3. Perform mCheck

Configuring the VLAN Ignore feature

Traffic of a VLAN on a complex network can be blocked by the spanning tree.
Enter Layer 2 Ethernet
interface view or Layer 2
aggregate interface view
Enter port group view
Command...
interface interface-type
interface-number
port-group manual port-
group-name
stp enable
Command...
system-view
stp mcheck
Command...
system-view
interface interface-type
interface-number
stp mcheck
76
Remarks
Required
Use either command
Optional
By default, the spanning tree
feature is enabled on all ports
Remarks
—
Required
Remarks
—
—
Required