Ciena Corporation

Kenneth W Young

Natalie Giroux

Brian Smith

Chris Barrett

Pablo Frank

Frederic Perras

Allan Beaudette

James D Arseneault

Nicholas J Cadwgan

A system is provided for sharing a protection path between at least two protection groups in a network. The system includes at least one working path associated with each of the protection groups, and at least one working maintenance entity group ('WMEG') monitoring the status of each of the working paths. Each WMEG notifies the protection group associated with the monitored working path of changes in the status of the monitored working path. At least one protection entity group ('PMEG') monitors the status of the protection path and notifies each of the protection groups of changes in the status of the protection path. Each of the protection groups is switchable to the protection path in response to the receipt of notifications from the WMEG of changes to a non-operational status for the respective working paths associated with each of the protection groups.

Use of 1:1 protection state machine for load sharing and alternative protection schemes

A method for managing data packets passing through an Ethernet node having multiple ingress ports and multiple egress ports, the ingress ports receiving the data packets from at least one service, and the egress ports configured with at least one Logical Transport Resource (LTR) configured as a predefined path between one of the egress ports and a destination in the Ethernet network. The method comprises mapping one or more of the services to each of the at least one LTR, shaping each of the at least one LTR to a configured rate, and transmitting data packets to the Ethernet network via the egress ports.

Logical transport resource traffic management

Growing community of inventors

Kanata, Canada

Kenneth W Young