Allied Telesis AT-S62 - Manual (Page 508)

Chapter 24: Multiple Spanning Tree Protocol
Section IV: Spanning Tree Protocols 508
Table 17 lists the MSTP port costs with the Auto setting when the
port is part of a port trunk.
2 - Point-to-Point
This parameter defines whether the port is functioning as a point-
to-point port. For an explanation of this parameter, refer to Point-
to-Point Ports and Edge Ports on page 462.
3 - Edge Port
This parameter defines whether the port is functioning as an edge
port. For an explanation of this parameter, refer to Point-to-Point
Ports and Edge Ports on page 462.
Parameter changes are immediately activated on the port.
6. After making changes, type R until you return to the Main Menu. Then
type S to select Save Configuration Changes.
Configuring
MSTI-specific
Port Parameters
This procedure explains how to set a port’s priority and internal path
cost. These parameters can be set independently on a port for each MSTI
where a port is a member. To configure the parameters, perform the
following procedure:
1. From the MSTP Menu, type P to select MSTP Port Parameters.
The MSTP Port Parameters menu is shown in Figure 176 on page
506.
2. Type 2 to select Configure Per Spanning Tree Port Settings.
The following prompt is displayed:
Enter Spanning Tree (CIST/MSTI) List :
3. Enter the ID number of the CIST or MSTI where the VLAN containing
the port whose settings you want to configure is assigned. You can
specify more than one ID number.
It should be noted that you can enter the ID number of an MSTI
where the port is not a member. This allows you to pre-configure
the parameter in the event you later add the port as a member of
the MSTI through a VLAN assignment.
Table 17 Auto External Path Trunk Costs
Port Speed Port Cost
10 Mbps 20,000
100 Mbps 20,000
1000 Mbps 2,000