HP MSR2000/3000/4000 Router Series Layer 2 - LAN Switching Command Reference
Table Of Contents
- Title Page
- Contents
- MAC address table commands
- Port isolation commands
- Spanning tree commands
- active region-configuration
- check region-configuration
- display stp
- display stp abnormal-port
- display stp bpdu-statistics
- display stp down-port
- display stp history
- display stp region-configuration
- display stp root
- display stp tc
- instance
- region-name
- reset stp
- revision-level
- stp bpdu-protection
- stp bridge-diameter
- stp compliance
- stp config-digest-snooping
- stp cost
- stp edged-port
- stp enable
- stp global config-digest-snooping
- stp global enable
- stp global mcheck
- stp loop-protection
- stp max-hops
- stp mcheck
- stp mode
- stp no-agreement-check
- stp pathcost-standard
- stp point-to-point
- stp port priority
- stp port-log
- stp priority
- stp region-configuration
- stp role-restriction
- stp root primary
- stp root secondary
- stp root-protection
- stp tc-protection
- stp tc-protection threshold
- stp tc-restriction
- stp timer forward-delay
- stp timer hello
- stp timer max-age
- stp timer-factor
- stp transmit-limit
- vlan-mapping modulo
- Loop detection commands
- VLAN commands
- LLDP commands
- display lldp local-information
- display lldp neighbor-information
- display lldp statistics
- display lldp status
- display lldp tlv-config
- lldp admin-status
- lldp check-change-interval
- lldp enable
- lldp encapsulation snap
- lldp fast-count
- lldp global enable
- lldp hold-multiplier
- lldp management-address-format string
- lldp max-credit
- lldp mode
- lldp notification med-topology-change enable
- lldp notification remote-change enable
- lldp timer fast-interval
- lldp timer notification-interval
- lldp timer reinit-delay
- lldp timer tx-interval
- lldp tlv-enable
- Support and other resources
- Index
36
Examples
# Enable the spanning tree feature globally.
<Sysname> system-view
[Sysname] stp global enable
Related commands
• stp enable
• stp mode
stp global mcheck
Use stp global mcheck to perform the mCheck operation globally.
Syntax
stp global mcheck
Views
System view
Predefined user roles
network-admin
Usage guidelines
If a port on a device running MSTP or RSTP connects to an STP device, this port automatically transits to
the STP mode when the port receives STP BPDUs. However, if the peer STP device is shut down or
removed and the local device cannot detect the change, the local device cannot automatically transit
back to the original mode. In this case, you can perform an mCheck operation to forcibly transit the port
to operate in the original mode.
The device operates in STP, RSTP, or MSTP mode depending on the spanning tree mode setting.
The stp global mcheck command is effective only when the device operates in MSTP or RSTP mode.
Examples
# Perform mCheck globally.
<Sysname> system-view
[Sysname] stp global mcheck
Related commands
• stp mcheck
• stp mode
stp loop-protection
Use stp loop-protection to enable the loop guard function on the ports.
Use undo stp loop-protection to disable the loop guard function on the ports.
Syntax
stp loop-protection
undo stp loop-protection