ATL Telecom R1-SW Ethernet Switch - Manual (Page 281)

Configuring STP/RSTP
13-23
Disable RSTP only if you are sure there are no loops in the network topology . When RSTP is
disabled and loops are present in the topology, excessive traffic and indefinite packet
duplication can drastically reduce network performance. To disable RSTP on a per-VLAN basis,
enter the no stp vlan command in Global configuration mode. The following example
shows how to disable RSTP on the VLAN whose ID is 2:
(config)# no stp vlan id 1
(config)#
If you disable RSTP on a VLAN, STP is disabled on all ports belongs to the VLAN.