Two S12708 agile switches are deployed to
set up a cluster switch system (CSS) at the core layer. The S5700LI switches at the
aggregation and access layers are enabled with only Layer 2 forwarding (the S7700 core
switches in the original networking are used at the aggregation layer). Some APs are deployed
in the campus as needed. The S5700LI switches are deployed at the access layer to connect to
and manage wired users and APs, providing wired and wireless coverage for the campus.