Planet IGSW-2840 User Manual page 549

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Command Mode
Interface Configuration (Ethernet, Port Channel)
Command Usage
This command defines the priority for the use of an interface in the multiple spanning-tree. If the path cost for all interfaces
on a switch are the same, the interface with the highest priority (that is, lowest value) will be configured as an active link in
the spanning tree.
Where more than one interface is assigned the highest priority, the interface with lowest numeric identifier will be enabled.
Example
Console(config)#interface ethernet ethernet 1/5
Console(config-if)#spanning-tree mst 1 port-priority 0
Console(config-if)#
Related Commands
spanning-tree mst cost
spanning-tree protocol-migration
This command re-checks the appropriate BPDU format to send on the selected interface.
Syntax
spanning-tree protocol-migration interface
interface ethernet unit/port
-unit - Stack unit. (Range: 1)
-port - Port number. (Range: 1-28)
port-channel channel-id (Range: 1-12)
Command Mode
Privileged Exec
Command Usage
If at any time the switch detects STP BPDUs, including Configuration or Topology Change Notification BPDUs, it will
automatically set the selected interface to forced STP-compatible mode. However, you can also use the spanning-tree
protocol-migration command at any time to manually re-check the appropriate BPDU format to send on the selected
interfaces (i.e., RSTP or STP-compatible).
Example
Console#spanning-tree protocol-migration eth 1/5
Console#
549
User's Manual of IGSW-2840