Cisco MWR 2941 Installation Manual Page 622

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Cisco MWR 2941 Mobile Wireless Edge Router Release 3.5 Command Reference, Cisco IOS Release 15.1(3)MR
OL-26895-01
Chapter Cisco MWR 2941 Router Command Reference, Release 15.1(3)MR
show spanning-tree mst
Usage Guidelines The valid values for interface depend on the specified interface type and the chassis and module that are
used. For example, if you specify a Gigabit Ethernet interface and have a 48-port 10/100BASE-T
Ethernet module that is installed in a 13-slot chassis, valid values for the module number are from 2 to 13
and valid values for the port number are from 1 to 48.
The number of valid values for port-channel number are a maximum of 64 values ranging from 1 to
282. The port-channel number values from 257 to 282 are supported on the CSM and the FWSM only.
The number of valid values for vlan are from 1 to 4094.
Valid values for instance-id are from 0 to 4094.
In the output display of the show spanning-tree mst configuration command, a warning message may
display. This message appears if you do not map secondary VLANs to the same instance as the associated
primary VLAN. The display includes a list of the secondary VLANs that are not mapped to the same
instance as the associated primary VLAN. The warning message is as follows:
These secondary vlans are not mapped to the same instance as their primary:
-> 3
In the output display of the show spanning-tree mst configuration digest command, if the output applies to
both standard and prestandard bridges at the same time on a per-port basis, two different digests are
displayed.
If you configure a port to transmit prestandard BPDUs only, the prestandard flag displays in the show
spanning-tree commands. The variations of the prestandard flag are as follows:
12.2(18)SXF The changes are as follows:
The range of valid values for the instance-id changed to 0 to 4094.
The output of the show spanning-tree mst configuration command has
changed as follows:
Displays the instance identification from 0 to 4094.
Displays the number of the currently configured instances from 0 to
65.
Adds the digest keyword to display the MD5 digest of the
VLAN-to-instance mapping of the MST configuration.
The output of the show spanning-tree mst detail command has
changed as follows:
The Regional Root field replaced the IST Master field.
The Internal Path field replaced the Path Cost field.
The Designated Regional Root field replaced the Designated IST
Master field.
The txholdcount field was added in the Operational parameter line.
Displays new roles for all MST instances on the CIST root port.
Displays the prestandard flag.
12.2(33)SRA This command was integrated into Cisco IOS Release 12.2(33)SRA.
15.0(1)MR This command was integrated into Cisco IOS Release 15.0(1)MR.
Release Modification
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