Invention Grant
- Patent Title: System and method for restoration in a multimedia IP network
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Application No.: US15978824Application Date: 2018-05-14
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Publication No.: US10931567B2Publication Date: 2021-02-23
- Inventor: Guangzhi Li , Dongmei Wang
- Applicant: AT&T Intellectual Property I, L.P.
- Applicant Address: US GA Atlanta
- Assignee: AT&T Intellectual Property I, L.P.
- Current Assignee: AT&T Intellectual Property I, L.P.
- Current Assignee Address: US GA Atlanta
- Agency: Guntin & Gust, PLC
- Agent Jay Anderson
- Main IPC: H04L12/703
- IPC: H04L12/703 ; H04L12/42 ; H04L12/751 ; H04L12/721 ; H04L12/735 ; H04L12/761 ; H04L12/707 ; H04L12/18 ; H04L12/24

Abstract:
Disclosed herein are systems, methods, and computer readable media for modifying IP backbone link weights such that multicast traffic and unicast traffic will not travel on a same path between nodes. The method comprises assigning link weights to nodes within an IP backbone such that multicast forwarding paths and unicast forwarding paths are failure disjoint, and delivering undelivered multicast packets using IP unicast encapsulation to the loopback address of next hop router on a multicast tree upon link/interface failure.
Public/Granted literature
- US20180270147A1 SYSTEM AND METHOD FOR RESTORATION IN A MULTIMEDIA IP NETWORK Public/Granted day:2018-09-20
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