Connection-Oriented Ethernet holds great promise for creating a single aggregation and transport metro infrastructure. It provides the flexibility and scalability of Ethernet with the performance, reliability and security of SONET/SDH.

Ethernet tag switching is Fujitsu’s branding of an Ethernet-centric implementation of Connection-Oriented Ethernet. Ethernet tag switching is similar to VLAN Tag Switching using IEEE 802.1ad frame format (Q-in-Q). Fujitsu’s Ethernet tag switching implementation has solved the Q-in-Q scaling limitation. The OAM standards used in Ethernet tag switching have been in place for many years.

Ethernet tag switching uniquely allows service providers to enjoy deterministic performance, efficient aggregation and 50 ms protection switching capabilities in a manner that is most easy to operationalize in their transport networks.

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