R2511-HP MSR Router Series Layer 2 - LAN Switching Command Reference(V5)

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Default command level
2: System level
Usage guidelines
Configured in system view, the setting takes effect globally.
Configured in Ethernet interface view, the setting takes effect only on the interface.
Configured in port group view, the setting takes effect on all member ports in the port group.
Configured in Layer 2 aggregate interface view, the setting takes effect only on the aggregate interface.
Configured on a member port in an aggregation group, the setting takes effect only after the port leaves
the aggregation group.
Enable this feature both globally and on ports connected to other vendors' devices to make it effective.
To minimize impact, enable the feature on all associated ports before you enable it globally.
When Digest Snooping is globally enabled, if you modify the VLAN-to-instance mapping or use the
undo stp region-configuration command to restore the default MST region configuration, traffic might be
interrupted because the local VLAN-to-instance mapping is different from that on a neighbor device.
Perform these operations with caution.
The following matrix shows the command and router compatibility:
Command MSR900 MSR93
X
MSR20-1
X
MSR20 MSR30 MSR50 MSR1000
stp
config-digest-snoop
ing (Layer 2
aggregate interface
view)
No Yes No No Yes Yes Yes
Examples
# Enable Digest Snooping on Ethernet 1/1 and then globally.
<Sysname> system-view
[Sysname] interface ethernet 1/1
[Sysname-Ethernet1/1] stp config-digest-snooping
[Sysname-Ethernet1/1] quit
[Sysname] stp config-digest-snooping
Related commands
display stp
stp cost
Use stp cost to set the path cost of the port or ports.
Use undo stp cost to restore the default.
Syntax
stp [ instance instance-id ] cost cost
undo stp [ instance instance-id ] cost