Assigning a port cost for an MST instance
Syntax:
spanning-tree instance ist | 1..16 port-list path-cost [auto | 1..200000000]
Assigns an individual port cost for the IST or for the specified MST instance.
For a given port, the path cost setting can be different for different MST instances to which the port may belong. The switch uses the path cost to determine which ports are the forwarding ports in the instance; that is, which links to use for the active topology of the instance and which ports to block.
The settings are either
auto or in a range from 1 to 200,000,000. With the
auto setting, the switch calculates the path cost from the link speed:
- 10 Mbps
2000000- 100 Mbps
200000- 1 Gbps
20000- Default
Auto