Specifications

9033640 VH-8G User Interface 31
Configuring STA for Ports
The following figure and table describe STA configuration for ports.
Figure 2-24. Spanning Tree Port Configuration
Vertical Horizon Local Management -- VH-8G
Fast forwarding mode of all ports : [Enable] [Disable]
Spanning Tree Port Configuration : Port 1 - 8
Port Type Priority Cost FastForwarding
----------------------------------------------------
1 1000SX 128 4 ENABLED
2 1000SX 128 4 ENABLED
3 1000SX 128 4 ENABLED
4 1000SX 128 4 ENABLED
5 1000SX 128 4 ENABLED
6 1000SX 128 4 ENABLED
7 1000SX 128 4 ENABLED
8 1000SX 128 4 ENABLED
<APPLY> <OK> <CANCEL>
Use <TAB> or arrow keys to move, other keys to make changes.
Parameter Default Description
Fast forwarding mode
of all ports
ENABLED Allows you to enable or disable fast forwarding for
all ports on the switch.
Type Shows the port type as 1000SX (1000Base-SX).
Priority 128 Defines the priority for the use of a port in the STA
algorithm. If the path cost for all ports on a switch
are the same, the port with the highest priority
(i.e., lowest value) will be configured as an active
link in the spanning tree. Where more than one
port is assigned the highest priority, the port with
lowest numeric identifier will be enabled.
The range is 0 - 255.
(Path) Cost 100/19/4 This parameter is used by the STA algorithm to
determine the best path between devices.
Therefore, lower values should be assigned to
ports attached to faster media, and higher values
assigned to ports with slower media.
(Path cost takes precedence over port priority.)
The default and recommended range is:
Ethernet: 100 (50~600)
Fast Ethernet: 19 (10~60)
Gigabit Ethernet: 4 (3~10)
The full range is 0 - 65535.