Allied Telesis AT-S62 - Manual (Page 538)

Chapter 23: Multiple Spanning Tree Protocol
538 Section IV: Spanning Tree Protocols
Table 18 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 489.
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 489.
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 182 on page
536.
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 containing the VLAN with the
port to be configured is assigned. You can specify more than one ID
number.
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 18. Auto External Path Trunk Costs
Port Speed Port Cost
10 Mbps 20,000
100 Mbps 20,000
1000 Mbps 2,000