发明申请
- 专利标题: Method and apparatus for providing faster convergence for redundant sites
- 专利标题(中): 为冗余站点提供更快收敛的方法和装置
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申请号: US11159719申请日: 2005-06-23
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公开(公告)号: US20070008878A1公开(公告)日: 2007-01-11
- 发明人: Clarence Filsfils , James Guichard , Robert Raszuk , Jean-Philippe Vasseur , Kris Michielsen , Peter De Vriendt
- 申请人: Clarence Filsfils , James Guichard , Robert Raszuk , Jean-Philippe Vasseur , Kris Michielsen , Peter De Vriendt
- 主分类号: G06F11/00
- IPC分类号: G06F11/00
摘要:
A method, apparatus and computer program product for providing convergence for a dual-homed site in a network is presented. An occurrence of a failure between a first Provider Edge (PE) device and a first Customer Edge (CE) device in communication with a dual-homed site is detected. A determination is made whether an alternate route exists for the dual-homed site in a routing table associated with the first PE device. When an alternate route exists then a routing entry associated with the first CE device in a routing table of said first PE device is kept from being deleted for a predetermined amount of time, the routing table is modified to reference the alternate route, the routing entry is rewritten to perform a POP and lookup in a VRF table of the first PE device, and the routing entry is deleted after the predetermined amount of time has elapsed.
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