392CHAPTER 10: STP COMMANDS

Examples — The following command changes the maximum acceptable age for root bridge hello packets on all VLANs to 15 seconds:

WX4400# set spantree maxage 15 all success: change accepted.

 

See Also

 

„ display spantree on page 376

 

 

set spantree

Changes the cost that transmission through a network port or ports in

portcost

the default VLAN on a wireless LAN switch adds to the total cost of a

 

path to the STP root bridge.

 

Syntax set spantree portcost port-listcost cost

 

„ port-list— List of ports. MSS applies the cost change to all the

 

specified ports.

 

„ cost cost Numeric value. You can specify a value from 1 through

 

65,535. STP selects lower-cost paths over higher-cost paths.

 

Defaults — The default port cost depends on the port speed and link

 

type. Table 73 lists the defaults for STP port path cost.

 

Table 73 STP Port Path Cost Defaults

Port Speed

Link Type

Default Port Path Cost

 

 

 

1000 Mbps

Full Duplex Aggregate

3

 

Link (Port Group)

 

1000 Mbps

Full Duplex

4

100 Mbps

Full Duplex Aggregate

15

 

Link (Port Group)

 

100 Mbps

Full Duplex

18

100 Mbps

Half Duplex

19

10 Mbps

Full Duplex Aggregate

90

 

Link (Port Group)

 

10 Mbps

Full Duplex

95

10 Mbps

Half Duplex

100

 

 

 

Access — Enabled.

History —Introduced in MSS Version 3.0.