DLSW

Data Link Switching Plus

ACKs for and takes responsibility for LLC packets

Encapsulation

TCP
FST - low overhead, no reliability, no link failure reroutes, tokenring
Direct - tokenring, hdlc & frame relay
LLC2 (DLSW Lite) - frame relay

Configuration

To keep redundancy between dual connections, configure a loopback address to be used instead of physical interface addresses

config# bridge 1 protocol ieee
config-if# bridge-group 1
config# dlsw local-peer peer-id 170.100.100.2
config# dlsw remote-peer 0 tcp 170.100.100.3
config# dlsw bridge-group 1 (linked transparent bridging with DLSW) 

View/Debug Commands

show dlsw peers
show dlsw circuits
debug dlsw peers