Method and system for protecting a sub-domain within a broadcast domain
First Claim
1. A method for protecting a service available on a broadcast domain, the method comprising:
- establishing a sub-domain within the broadcast domain, the sub-domain including a group of nodes used to provide a communication path to the service;
monitoring a primary sub-domain maintenance association and a back-up sub-domain maintenance association, the primary and back-up sub-domain maintenance associations being a set of primary and back-up paths, respectively, representing connectivity between nodes acting as edge nodes in the sub-domain;
detecting a fault within the primary sub-domain maintenance association; and
switching to the back-up sub-domain maintenance association.
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Accused Products
Abstract
A method and system for protecting a service available on a broadcast domain. A sub-domain is established within the broadcast domain. The sub-domain includes a group of nodes used to provide a communication path to the service. A primary sub-domain maintenance association and a back-up sub-domain maintenance association are monitored. The primary and sub-domain maintenance associations are a set of primary and back-up paths, respectively, representing connectivity between nodes acting as edge nodes in the sub-domain. A fault is detected within the primary sub-domain maintenance association and a switch to the back-up sub-domain maintenance association occurs.
181 Citations
26 Claims
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1. A method for protecting a service available on a broadcast domain, the method comprising:
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establishing a sub-domain within the broadcast domain, the sub-domain including a group of nodes used to provide a communication path to the service; monitoring a primary sub-domain maintenance association and a back-up sub-domain maintenance association, the primary and back-up sub-domain maintenance associations being a set of primary and back-up paths, respectively, representing connectivity between nodes acting as edge nodes in the sub-domain; detecting a fault within the primary sub-domain maintenance association; and switching to the back-up sub-domain maintenance association. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A system for providing a service available on a broadcast domain, the system comprising:
a plurality of nodes, the plurality of nodes being arranged as a sub-domain which provide a communication path to the service, each of the nodes including; a storage device arranged to store data corresponding to a primary sub-domain maintenance association and a back-up sub-domain maintenance association, the primary and back-up sub-domain maintenance associations being a set of primary and back-up paths, respectively, representing connectivity between nodes acting as edge nodes in the sub-domain; and a central processing unit, the central processing unit operating to; detect a fault within the primary sub-domain maintenance association; and switch to the back-up sub-domain maintenance association. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22)
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23. A storage medium storing a computer program which when executed performs method for protecting a service available on a broadcast domain, the method comprising:
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establishing a sub-domain within the broadcast domain, the sub-domain including a group of nodes used to provide a communication path to the service; monitoring a primary sub-domain maintenance association and a back-up sub-domain maintenance association, the primary and back-up sub-domain maintenance associations being a set of primary and back-up paths, respectively, representing connectivity between nodes acting as edge nodes in the sub-domain; detecting a fault within the primary sub-domain maintenance association; and switching to the back-up sub-domain maintenance association. - View Dependent Claims (24, 25, 26)
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Specification