Chapter 9: Rapid Spanning Tree Protocol (RSTP)
122 Section I: Using the Menus Interface
4. Type I to select Set Port Priority.
The following prompt is displayed:
Select port number to be changed>
Port number is in range from 1 to 9, 0 to set all ports
5. Enter the number of the port you want to change, or type 0 (zero) to
apply the settings to all ports on the switch.
The following prompt is displayed:
Enter priority for port
n>
This parameter is used as a tie breaker when two or more ports are
determined to have equal costs to the root bridge. The range is 0 to
240 in increments of 16. The default value is 8 (priority value 128). For
a list of the increments, refer to Table5 on page 111.
Note
If two or more ports have the same cost and priorities, then the port
with the lowest MAC address becomes the forwarding port.
6. Enter a number for the priority.
7. Type C to select Set Path Cost.
The following prompt is displayed:
Select port number to be changed>
Port number is in range from 1 to 9, 0 to set all ports
8. Enter the number of the port you want to change, or type 0 (zero) to
apply the settings to all ports on the switch.
The following prompt is displayed:
Enter path cost for port
n>
The spanning tree algorithm uses the cost parameter to decide which
port provides the lowest cost path to the root bridge for that LAN.The
range is from 0 to 240, with 240 being the highest priority. For a list of
the increments, refer to Table5 on page 111.
The default setting is based on the Auto-Detect Port Cost feature,
which sets port cost depending on the speed of the port. The default
values are shown in Table3 on page 110.
9. Enter a number for the path cost.
10. Type S to select Set Port STP Status.