System information

RSTP

3-33

• Hello Time – Interval (in seconds) at which the root device transmits a

configuration message (BPDU frame). Number between 1 - 10 (default is 2).

• Max Age – The maximum time (in seconds) a device can wait without receiving a

configuration message before attempting to reconfigure. That also means the

maximum life time for a BPDU frame. Number between 6 - 40 (default is 20).

• Forward Delay – The maximum time (in seconds) the root device will wait before

changing states (i.e., discarding to learning to forwarding). Number between 4 - 30

(default is 15).

• Force Version – Set and show the RSTP protocol to use. Normal - use RSTP,

Compatible - compatible with STP.

RSTP Port Configuration

Field Attributes

• Port - The port ID. It can not be changed. Aggregations means any configured

trunk group.

• Enabled - Click on the tick-box to enable/disable the RSTP prototocl for the port.

• Edge - Expect the port to be an edge port (linking to an end station) or a link to

another STP device.

• Path Cost - This parameter is used by the STP 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. Set the RSTP

pathcost on the port. Number between 0 - 200000000. 0 means autogenerated

pathcost.

Web – Click RSTP, Settings.

Figure 3-30 RSTP Configuration