Brocade FastIron Ethernet Switch Platform and Layer 2 Switching Configuration Guide - Manual (Page 400)

FIGURE 87 Conceptual model of the super aggregated VLAN application
Each client connected to the edge device is in its own port-based VLAN, which is like an ATM channel.
All the clients’ VLANs are aggregated by the edge device into a single VLAN for connection to the
core. The single VLAN that aggregates the clients’ VLANs is like an ATM path.
The device that aggregates the VLANs forwards the aggregated VLAN traffic through the core. The
core can consist of multiple devices that forward the aggregated VLAN traffic. The edge device at the
other end of the core separates the aggregated VLANs into the individual client VLANs before
forwarding the traffic. The edge devices forward the individual client traffic to the clients. For the
clients’ perspective, the channel is a direct point-to-point link.
VLANs
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