Stp Max-Hops; Stp Mcheck - HP 3600 v2 Series Command Reference Manual

stp max-hops

Syntax
stp max-hops hops
undo stp max-hops
View
System view
Default level
2: System level
Parameters
hops: Sets the maximum hops, in the range of 1 to 40.
Description
Use stp max-hops to set the maximum hops of the MST region.
Use undo stp max-hops to restore the default.
By default, the maximum number of hops of an MST region is 20.
Related commands: display stp.
Examples
# Set the maximum hops of the MST region to 35.
<Sysname> system-view
[Sysname] stp max-hops 35

stp mcheck

Syntax
stp mcheck
View
System view, Ethernet interface view, Layer 2 aggregate interface view
Default level
2: System level
Parameters
None
Description
Use stp mcheck to perform the mCheck operation globally or on a port.
If a port on a device running MSTP, RSTP, or PVST mode connects to an STP device, the port will
automatically migrate to the STP mode. It will not be able to migrate automatically back to the MSTP, RSTP,
or PVST mode, so it will remain operating in the STP mode until the STP switch is shut down or removed,
or migrated to the MSTP, RSTP, or PVST mode. Then, you can perform an mCheck operation to force the
port to migrate to the MSTP, RSTP, or PVST mode.
Suppose Device A running STP, Device B with no spanning tree feature enabled, and Device C running
MSTP, RSTP, or PVST are connected in order. Device B will transparently transmit the STP BPDUs, and the
134