Carrier Ethernet services can be delivered over IEEE 802.1 standards-based:
- Customer Bridged Networks
- Provider Bridged (PB) Networks
- Provider Backbone Bridged (PBB) Networks
- Provider Backbone Bridged with Traffic Engineering (PBB-TE) Networks
All these networks require some form of layer 1 / layer 2 transport technology to interconnect bridges. Typically, these bridges are interconnected with IEEE 802.3 Ethernet.
The capabilities of each of the IEEE 802.1 standards-based technologies used in these networks needs to be taken into account when implementing any of the four Carrier Ethernet service types:
Note that these technologies, and the Carrier Ethernet services delivered over them, can operate over any physical topology:
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