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Usage
Information
The max-hops command is a configuration command that applies to both the IST and all MST instances
in the MSTP region. The BPDUs sent out by the root switch set the remaining-hops parameter to the
configured value of max-hops. When a switch receives the BPDU, it decrements the received value of the
remaining hops and uses the resulting value as remaining-hops in the BPDUs. If the remaining-hops reach
zero, the switch discards the BPDU and ages out any information that it holds for the port.
msti
Configure multiple spanning tree instance, bridge priority, and one or multiple VLANs mapped to the MST instance.
Syntax
msti instance {vlan range | bridge-priority priority}
To disable mapping or bridge priority, use the no msti instance {vlan range | bridge-
priority priority} command.
Parameters
msti instance Enter the MSTP iInstance. The range is from zero (0) to 63.
vlan range Enter the keyword vlan then the identifier range value. The range is from 1 to
4094.
bridge-priority
priority
Enter the keywords bridge-priority then a value in increments of 4096 as the
bridge priority. The range is from zero (0) to 61440.
Valid priority values are: 0, 4096, 8192, 12288, 16384, 20480, 24576, 28672, 32768,
36864, 40960, 45056, 49152, 53248, 57344, and 61440. All other values are
rejected.
Defaults default bridge-priority is 32768.
Command Modes INTERFACE
Supported Modes Full–Switch
Command
History
Version Description
9.9(0.0) Introduced on the FN IOM.
8.3.16.1 Introduced on the MXL 10/40GbE Switch IO Module.
Usage
Information
By default, all VLANs are mapped to MST instance zero (0) unless you use the vlan range command
to map it to a non-zero instance.
Although MSTP instance IDs range from 0 to 4094, only 64 active instances are supported on the switch.
name
The name you assign to the multiple spanning tree region.
Syntax
name region-name
To remove the region name, use the no name command.
Parameters
region-name Enter the MST region name. The range is 32 character limit.
Defaults no default name.
Command Modes MULTIPLE SPANNING TREE
Supported Modes Full–Switch
Command
History
Version Description
9.9(0.0) Introduced on the FN IOM.
Multiple Spanning Tree Protocol (MSTP) 779