Open Ring Networking

Open ring networking occurs at the access layer and is used to transparently transmit Layer 2 unicast and multicast services. When SEP runs at the access layer, redundancy protection switching can be implemented at the access layer and topology of the SEP segment can be displayed. On an open ring network, edge interfaces are located on two edge devices in the SEP segment.

Figure 1 shows a networking diagram of an open ring running SEP.

Figure 1 Open ring running SEP

In Figure 1, LSW1 to LSW5 are not directly connected and form an open ring to connect to a Layer 2 network.