Rapid Spanning Tree Protocol (Rstp); The Default Configuration - Allied Telesis AT-x900-12XT/S Configuration Manual

Rapid Spanning Tree Protocol (RSTP)

This example takes the network from
two more switches in a ring topology, as the following figure shows. The switches use RSTP
to prevent layer 2 loops in the network.

The default configuration

RSTP is enabled with default settings on all switch ports. Therefore, no further configuration
is required for the above network.
The following figure shows the MAC addresses of each switch and the stable port states. By
default, all switches have the same root bridge priority, so the switch with the lowest MAC
address becomes the root bridge.
Page 12 | AlliedWare Plus™ OS How To Note: Switching
AlliedWare Plus
1.0.2
1.0.3
1.0.4
1.0.5
1.0.7
1.0.2
1.0.3
1.0.4
alternate,
discarding
designated,
forwarding
1.0.5
1.0.7
root,
forwarding
00-00-cd-24-02-26
"Basic VLAN and IP configuration" on page 7
Switch
1.0.1
1.0.5 1.0.6
1.0.6
1.0.7
AlliedWare Plus
Switch
MAC: 00-00-cd-24-03-31
1.0.1
1.0.5 1.0.6
root,
forwarding
1.0.7
designated,
forwarding
00-00-cd-12-78-08
Rapid Spanning Tree Protocol (RSTP)
and adds
rstp.eps
designated,
forwarding
1.0.6
Root
bridge
rstp-port-state.eps