Allied-telesis AT-S79 Manual do Utilizador descarregar pdf (Página 170)

Chapter 13: Rapid Spanning Tree Protocol (RSTP)

170 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

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 Table 5 on page 159.

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

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 Table 5 on page 159.

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 Table 3 on page 158.

9. Enter a number for the path cost.

10. Type S to select Set Port STP Status.

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Allied-telesis AT-S79 Manual do Utilizador Página 170