Invention Grant
- Patent Title: Stability site for VPLS multi-homing
- Patent Title (中): VPLS多归位的稳定站点
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Application No.: US13974132Application Date: 2013-08-23
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Publication No.: US09270581B2Publication Date: 2016-02-23
- Inventor: Ahmed Guellal , Shaohong Li
- Applicant: CenturyLink Intellectual Property LLC
- Applicant Address: US CO Denver
- Assignee: CenturyLink Intellectual Property LLC
- Current Assignee: CenturyLink Intellectual Property LLC
- Current Assignee Address: US CO Denver
- Agency: Swanson & Bratschun, L.L.C.
- Main IPC: H04L12/703
- IPC: H04L12/703 ; H04L12/28 ; H04L12/721 ; H04L12/723

Abstract:
Novel tools and techniques are described for mitigating data loss during failover in a VPLS multi-homed network. In one aspect, a primary link might be established between a lowest numbered provider edge (“PE”) router in the service provider network and a lowest numbered physical site at customer premises outside the service provider network. A stability site might be established within the service provider network, communicatively coupled to at least the lowest numbered PE router via a primary virtual circuit. The stability site might be designated as the lowest numbered virtual site, which might have a site ID number lower than the lowest numbered physical site. In response to the primary link failing or becoming broken, one or more backup virtual circuits might be established between a plurality of ingress PE routers and a plurality of egress PE routers in the service provider network, without destroying the primary virtual circuit.
Public/Granted literature
- US20140056125A1 Stability Site for VPLS Multi-Homing Public/Granted day:2014-02-27
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