H3C Technologies H3C Intelligent Management Center - Manual (Page 90)

• 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.
Terminology
This section clarifies some VPN operations and concepts.
• Layer VPN—L2VPN Management provides basic and detailed information for a Layer VPN. Basic
information includes the VPN name, contact, description, and audit interval. Detailed information
includes PEs, ACs, alarms, and audit information besides basic information.
• Add and Deploy—An Add operation adds a configuration task on L2VPN Management but it does
not deploy the configuration task to devices. Therefore, an Add operation does not change the
network. You can view and modify added configuration tasks only on L2VPN Management. A
Deploy operation deploys a configuration task to devices and thus changes the network. You can
also add and then deploy a configuration task.
• Delete and Undeploy—A Delete operation deletes the selected configuration from L2VPN
Management but not from the network. For example, after you delete a VPN, the VPN still exists on
the network. You can re-add this VPN to L2VPN Management through auto discovery. An Undeploy
operation deletes the selected configuration from the network. For example, after you undeploy a
VPN, the VPN is removed from the network, and you cannot re-add this VPN to L2VPN
Management through auto discovery.
• Modify—A Modify operation can only change information configured on L2VPN Management,
such as the VPN name, contact, description, audit interval, VCE label, and VCE MAC address. It
cannot change information on physical CEs. L2VPN Management can only read information from
physical CEs.
Using L2VPN Management with non-BGP protocols
This section provides a quick start for deploying and managing L2VPNs using non-BGP protocols,
including LDP VPLS, VLL, PBB.
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