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Multiple Instance Spanning-Tree Operation
Displaying MSTP Statistics and Configuration
Displaying the Region-Level Configuration in Brief. This command
output is useful for quickly verifying the allocation of VLANs in the switch’s
MSTP configuration and for viewing the configured region identifiers.
Figure 3-25. Example of a Region-Level Configuration Display
Syntax: show spanning-tree mst-config
This command displays the switch’s regional configuration.
Note: The switch computes the MSTP Configuration Digest from
the VID to MSTI configuration mappings on the switch itself.
As required by the 802.1s standard, all MSTP switches within
the same region must have the same VID to MSTI assignments,
and any given VID can be assigned to either the IST or one of
the MSTIs within the region. Thus, the MSTP Configuration
Digest must be identical for all MSTP switches intended to
belong to the same region. When comparing two MSTP
switches, if their Digest identifiers do not match, then they
cannot be members of the same region.
HP Switch(config)# show spanning-tree mst-config
MST Configuration Identifier Information
MST Configuration Name : 1cc1decfbc80
MST Configuration Revision : 0
MST Configuration Digest : 0xC8DB46AEBEA5F48799BD2D8B0E1BCA54
IST Mapped VLANs : 1-110,112-299,301-4094
Instance ID Mapped VLANs
----------- -------------------------------------------------
11 111,300
Refer to the “Note”, above.
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