Multicast forwarding methods and apparatuses across autonomous systems
US-2024275714-A1 · Aug 15, 2024 · US
Method and apparatus for simultaneous support of fast restoration and native multicast in IP networks
US8964571B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8964571-B2 |
| Application number | US-14412008-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 23, 2008 |
| Priority date | Jul 6, 2007 |
| Publication date | Feb 24, 2015 |
| Grant date | Feb 24, 2015 |
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Abstract
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The invention includes a method and apparatus for simultaneously supporting restoration and native multicast at a router in an Internet Protocol (IP) network. In one embodiment, a method includes establishing a point-to-point pseudowire having an endpoint at the router, associating the point-to-point pseudowire with an IP interface, and associating a multicast protocol with the IP interface. The point-to-point pseudowire is adapted for supporting restoration in response to a failure. The association of the multicast protocol with the IP interface enables running of the multicast protocol in a manner that gives an appearance that the multicast protocol is running natively on an IP link. This methodology may be repeated for each of a plurality of routers in an IP network in order to configure the routers to support restoration capabilities and native multicast capabilities such that fast restoration may be provided in response to failure conditions in a manner that is transparent to a multicast protocol providing multicast capabilities for the IP network. In this manner, both fast restoration and native multicast may be supported within an IP network, e.g., in an IPTV network or other types of IP networks supporting other types of services.
First claim
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What is claimed is: 1. An apparatus for supporting restoration and multicast at a router in an Internet Protocol (IP) network, comprising: a processor and a memory communicatively connected to the processor, the processor configured to: receive, at the router, a multicast packet of a multicast source, wherein the multicast packet is received via a communication path between the multicast source and the router, wherein the communication path is associated with a point-to-point (P2…
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Frequently asked questions
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- What does patent US8964571B2 cover?
- The invention includes a method and apparatus for simultaneously supporting restoration and native multicast at a router in an Internet Protocol (IP) network. In one embodiment, a method includes establishing a point-to-point pseudowire having an endpoint at the router, associating the point-to-point pseudowire with an IP interface, and associating a multicast protocol with the IP interface. Th…
- Who is the assignee on this patent?
- Chaudhry Ather J, Lam Peter J, Syed Ammar, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification H04L45/16. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Feb 24 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).