Method for supporting SNCP over packet network
AssigneeOrckit IP, LLC
InventorsDaniel Cohn, Rafi Ram
Life of this patent
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Abstract
A method is presented for supporting SNCP over a packet network connecting to two SDH sub-networks and transporting one or more SDH paths that are SNCP-protected in both SDH sub-networks. The packet network connects to each of two sub-network interconnection points by a working path and a protection path. The packet sub-network may provide the same type of path protection as an SDH sub-network using SNCP, while avoiding bandwidth duplication.
Claims24
A method for providing revertive or non-revertive path protection between first and second networks over a third network that is packet-based, using second and third devices each coupled to transport data traffic between the second and third networks, the method comprising:
- coupling a first port of a first device to the first network;
- communicating, using a second port of the first device, with the second device over the third network for transporting data traffic between the first and second networks;
- communicating, using a third port of the first device, with the third device over the third network;
- in a first state of the first device, transporting data traffic only between the first and second ports;
- in a second state the first device, transporting data traffic only between the third and first ports;
- and
- shifting, by the first device, from the first to second state in response to detecting a failure,
- wherein the third network consists of, supports, or provide, a Multi-Protocol Label Switching (MPLS) network, and
- wherein the first and second networks are different networks that use the same protocol.
Dependencies are inferred from the claim text.