METHOD AND APPARATUS FOR PATH SWITCHING
First Claim
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1. A path switching method in a network comprising at least a first path and a second path, the method comprising:
- for an incoming traffic flow, determining that any of tunnels on the first path of all levels into which the incoming traffic flow is multiplexed is of a failure status; and
forwarding the incoming traffic flow via the second path,wherein for the first path, one or more traffic flows are multiplexed into a tunnel, and one or more higher level tunnels are multiplexed into a lower level tunnel.
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Abstract
The present invention discloses a path switching method and apparatus in a network comprising at least a first path and a second path. For an incoming traffic flow, it is determined that any of tunnels on the first path of all levels into which the incoming traffic flow is multiplexed is of a failure status. The incoming traffic flow is then forwarded via the second path. Herein, for the first path, one or more traffic flows are multiplexed into a tunnel, and one or more higher level tunnels are multiplexed into a lower level tunnel.
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Citations
20 Claims
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1. A path switching method in a network comprising at least a first path and a second path, the method comprising:
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for an incoming traffic flow, determining that any of tunnels on the first path of all levels into which the incoming traffic flow is multiplexed is of a failure status; and forwarding the incoming traffic flow via the second path, wherein for the first path, one or more traffic flows are multiplexed into a tunnel, and one or more higher level tunnels are multiplexed into a lower level tunnel. - View Dependent Claims (2, 3, 4, 5, 6, 17, 18, 19, 20)
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7. A path switching apparatus in a network comprising at least a first path and a second path, the apparatus comprising:
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a failure status determining unit configured to determine, for an incoming traffic flow, whether any of tunnels on the first path of all levels into which the incoming traffic flow is multiplexed is of a failure status; and a forwarding unit configured to forward the incoming traffic flow via the second path, if the failure status determining unit determines that any of tunnels on the first path of all levels into which the incoming traffic flow is multiplexed is of the failure status, wherein for the first path, one or more traffic flows are multiplexed into a tunnel, and one or more higher level tunnels are multiplexed into a lower level tunnel. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification