3Com MSR 50 Network Router User Manual


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Use the undo stp config-digest-snooping command to disable Digest
Snooping.
The feature is disabled by default.
Notice that:
You need to enable this feature both globally and on ports connected to other
vendors’ devices to make it take effect. It is recommended to enable the
feature on all associated ports first and then globally, making all configured
ports take effect at the same time to minimize the impact, and disable the
feature globally to disable it on all associated ports.
It is not recommended to enable Digest Snooping on the MST region edge port
to avoid loops.
Refer to “Link Aggregation Configuration Commands” on page 473 for
information about port groups.
Examples # Enable global Digest Snooping.
<Sysname> system-view
[Sysname] stp config-digest-snooping
# Enable Digest Snooping on Ethernet 1/1.
<Sysname> system-view
[Sysname] interface ethernet 1/1
[Sysname-Ethernet1/1] stp config-digest-snooping
stp cost
Syntax stp [ instance instance-id ] cost cost
undo stp [ instance instance-id ] cost
View Ethernet interface view, port group view
Parameters instance instance-id: Sets the path cost of the port(s) in a particular MST instance.
The minimum value of instance-id is 0, representing the CIST, and the maximum
value of instance-id is 15.
cost: Path cost of the port, the effective range of which depends on the path cost
calculation standard adopted.
Description Use the
stp cost command to set the path cost of the port(s) in the specified MST
instance or all MST instances.
Use the
undo stp cost command to restore the default.
By default, the device automatically calculates the path costs of ports in each MST
instance based on the corresponding standard.
Note that: