Carrier Ethernet "Label" Scalability

Ethernet is becoming one of the dominant aggregation technologies for carrier transport networks. Because it is a LAN technology, native bridged Ethernet does not fulfil all carrier requirements. Several schemes have been proposed to allow Ethernet to fulfil such requirements. Carrier Ethernet technologies rely on domain-wide or local label-based forwarding, although some of them use a smaller label size and different scope than existing label switching technologies (Like Multi-Protocol Label Switching).