Users Guide

IEEE 802.1BR
The IEEE 802.1BR protocol allows a controlling bridge to use IEEE LAN technologies to discover and manage
port extenders.
The following illustration shows how a controlling bridge connects through an automatically established port
channel (auto-LAG) to an uplink port on one or more port extenders.
Figure 104. Controlling Bridge with Port Extenders
1 Controlling Bridge (C9010) 2 Cascade ports on controlling bridge
3 10GbE uplink ports on PEs 4 Standalone PE (C1048P)
5 PE stack 6 Cable connections in a ring topology
Port Extenders (PEs) 819