Spanning Tree Configuration - Planet WSD-800 User Manual

B
Port 1
Port 2
LAN 2
The switch with the lowest Bridge ID (switch C) was elected the root bridge, and the ports were selected to give a
high port cost between switches B and C. The two (optional) Gigabit ports (default port cost = 4) on switch A are
connected to one (optional) Gigabit port on both switch B and C. The redundant link between switch B and C is
deliberately chosen as a 100 Mbps Fast Ethernet link (default port cost = 19). Gigabit ports could be used, but the
port cost should be increased from the default to ensure that the link between switch B and switch C is the blocked
link.

4.6.2 Spanning Tree Configuration

The Spanning Tree Protocol (STP) operates on two levels: On the switch level, the settings are globally
implemented. On the port level, the settings are implemented on a. per user-defined Group of ports.
1. Spanning Tree Configuration
The "Rapid Spanning Tree Bridge Configure" table allows configuring the spanning tree parameters.
Rapid Spanning Tree Status: The spanning tree function of the switch is default disabled. This field enables to
turn on the spanning tree on the switch.
Force Protocol Version: 0 for IEEE 802.1D Spanning Tree, 2 for IEEE 802.1W Rapid Spanning Tree
Max Age: (6 - 40 sec) the default setting is 20
Hello Time: (1 - 10sec) the default setting is 2
Forward Delay: (4 -30 sec) the default setting is 15
Bridge Priority: (0 - 61440) the default setting is 32768
User's Manual of WSD-800 / WGSD-910/WGSD-1022C
LAN 1
A
Port 3
Root Bridge
Port 1
Designated Port
Root Port
Blocked
Port 3
After Applying the STA Rules
-42-
Port 2
Designated Port
Root Port
C
Port 1
Designated Bridge
Port 2
LAN 3
Port 3