User’s Manual of GSD-800S / GSD-802S / GSD-802PS

 

 

stations, avoiding and eliminating loops.

 

 

 

 

 

 

 

 

#Notice:

 

 

• Max Age -. The value lies between 6 and 40, with the value being less than or equal to "(2 *

 

 

Bridge Forward Delay) - 1" and greater than or equal to "2 * ( Bridge Hello Time +1)". The

 

 

default value is 20.

•Hello Time - The value being less than or equal to "(Bridge Max Age / 2) - 1". The default hello time value is 2.

•Forward Delay- Bridge Forward Delay must be greater or equal to "(Bridge Max Age / 2) + 1". The time range is from 4 seconds to 30 seconds. The default value is 15.

4.6.2RSTP Port Configuration

The RSTP Port Configuration page contains fields for assigning RSTP properties to individual ports. The screen in Figure 4-25 appears.

Figure 4-25RSTP Port Configuration

The page includes the following fields:

• Port

Indicate port 1 to port 24.

• Edge

Indicates whether the port is enabled as an edge port.

 

Edge port cannot create loops, but it loses edge port status if a topology change

 

creates a potential for a loop. An edge port normally should not receive BPDU

 

packets. If a BPDU packet is received it automatically loses edge port status.

• Path Cost

The port contribution to the root path cost. The path cost is adjusted to a higher or

 

lower value, and is used to forward traffic when a path being rerouted.

 

Value Rage : 1-20000000.

 

Default Path Cost -- The default path cost of the port is automatically set by the

 

port speed and the default path cost method. The default values for path costs

 

are: