QoS based protection of mesh-based intelligent optical networks
First Claim
1. In a mesh type communications network, a method for providing a QoS based protection of network failure scenarios comprising of:
- a) allocating network resources for protection of a network communication service, said allocating of said network resources selectively determined based on a QoS parameter requirement for said network communication service;
b) receiving an alarm notification of a failure scenario disrupting network resources of said communications network interrupting said network communication service;
c) responsive to said alarm notification, automatically switching a communication path of said network communication service to make use of said network resources which have been pre-allocated for protection of said network communication service.
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Abstract
In a communications network, a method and apparatus for providing QoS parameters based protection against network failure scenarios. The invention selectively allocates network resources for protection of a network communication service based on a QoS parameter requirement for the particular network communication service. An alarm provides notification of a failure scenario disrupting network resources interrupting the network communication service. In response to the alarm notification, the system automatically switches a path of the network communication service to make use of the network resources, which have been pre-allocated for protection of the network communication service.
48 Citations
26 Claims
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1. In a mesh type communications network, a method for providing a QoS based protection of network failure scenarios comprising of:
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a) allocating network resources for protection of a network communication service, said allocating of said network resources selectively determined based on a QoS parameter requirement for said network communication service;
b) receiving an alarm notification of a failure scenario disrupting network resources of said communications network interrupting said network communication service;
c) responsive to said alarm notification, automatically switching a communication path of said network communication service to make use of said network resources which have been pre-allocated for protection of said network communication service. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. In a mesh-based communications network, a system for providing a QoS based protection of network failure scenarios comprising of:
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a) a network allocation processor allocating network resources for protection of a network communication service, said network allocation processor selectively allocating said network resources based on a QoS parameters requirement for said network communication service;
b) an alarm-handling module for receiving an alarm notification of a failure scenario disrupting communication between two optical nodes of said communications network interrupting said network communication service;
c) at least one OXC Controller responsive to said alarm notification for automatically causing switching of an optical path of said network communication service to make use of said network resources, which have been allocated for protection of said network communication service. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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Specification