HP Intelligent Management Center Licenses - Manual (Page 11)

The above figure shows a typical PBB networking scenario. In a typical PBBN, there are two types
of devices, BEB and BCB.
•
BEB (Backbone Edge Bridge): Like a PE in an MPLS network. It performs MAC-in-MAC
encapsulation for the incoming packets and then delivers the encapsulated packets to
subsequent devices, which will forward the packets according to the B-MAC and B-VID. It also
de-encapsulates the received MAC-in-MAC packets to standard Ethernet packets and then
looks up the forwarding table and sends the packets from the corresponding outgoing
interfaces.
•
BCB (Backbone Core Bridge): Like a P device in an MPLS network. It forwards the received
MAC-in-MAC packets according to the outer B-MAC and B-VID. A BCB only performs packet
bridging, learning the MAC addresses on the backbone. It does not need to learn the huge
number of MAC addresses in the customer networks. This reduces the network deployment
expenses and provides better expansibility for the PBBN.
Usage Summary
The L2VPN Manager mainly provides two operation flows: service flow and deployment flow.
Through this user guide, you can quickly get started with the L2VPN Manager.
Service flow
NOTE: Select imported PE devices and perform automatic discovery. Then, the L2VPN Manager
will find out the VPNs and AC links newly configured on the devices and display them visually in
the topology diagram.
Usage Summary 11