Network Availability Enhancement Technique for Packet Transport Networks
First Claim
1. A packet communications network that transports a plurality of client traffic over a plurality of server transport paths from a source to a destination, the network comprising:
- using a load distribution method to distribute each instance of client traffic to an individual transport path, thereby avoiding reordering at the destination;
enabling all the transport paths to carry the client traffic and protect each other;
allowing the network to provision a preferred client traffic distribution through a policy setting; and
redistributing the client traffic when a condition on one of the transport paths changes.
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Accused Products
Abstract
A packet communications network that transports a plurality of traffic over a plurality of server transport paths from a source to a destination, the network comprising: using a load distribution method to distribute each instance of traffic to an individual transport path, thereby avoiding reordering at the destination; enabling all the transport paths to carry the traffic; allowing the network to provision a preferred traffic distribution through a policy setting; and redistributing the traffic when a condition on one of the transport paths changes. Also disclosed is a composite transport group component comprising: a processor configured to implement a method comprising: receiving a server trail failure notification message; and performing a dynamic redistribution of traffic over a plurality of server trails, thereby transporting substantially all of the traffic associated with a class of traffic transported over the server trail associated with the server trail failure notification message.
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Citations
26 Claims
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1. A packet communications network that transports a plurality of client traffic over a plurality of server transport paths from a source to a destination, the network comprising:
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using a load distribution method to distribute each instance of client traffic to an individual transport path, thereby avoiding reordering at the destination; enabling all the transport paths to carry the client traffic and protect each other; allowing the network to provision a preferred client traffic distribution through a policy setting; and redistributing the client traffic when a condition on one of the transport paths changes. - View Dependent Claims (2, 3, 4, 5)
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6. A composite transport group component comprising:
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a processor configured to implement a method comprising; receiving a server trail failure notification message; and performing a dynamic path redistribution of client traffic over a plurality of server trails, thereby transporting substantially all of the client traffic associated with a class of client traffic transported over the server trail associated with the server trail failure notification message. - View Dependent Claims (7, 8, 9, 10, 11, 25)
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12. A method comprising:
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maintaining a client profile table comprising data associated with a plurality of client traffic entering a connection-oriented network; maintaining a server trail table comprising data associated with a plurality of server trails that transport the client traffic across the network; monitoring the server trails to determine when a fault occurs; redistributing the client traffic over the server trails when the fault occurs; and updating the server trail table to reflect the fault and redistribution of client traffic. - View Dependent Claims (13, 14, 15, 16, 17, 18, 26)
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19. A communications system comprising:
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a first edge node and a second edge node; a plurality of paths that transport traffic between the first edge node and the second edge node, one of the paths comprising an aggregated link; wherein upon an occurrence of a partial fault in the path with the aggregated link, one of the edge nodes determines whether a reduced path capacity is unacceptable, and upon determining that the reduced path capacity is unacceptable, at least some of the traffic from the path with partial fault is transferred to the other paths. - View Dependent Claims (20, 21, 22, 23, 24)
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Specification