Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Reexamination Certificate
2005-06-14
2008-08-05
Hsu, Alpus H (Department: 2619)
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
C370S401000, C370S469000, C709S224000, C709S227000, C709S238000, C709S249000
Reexamination Certificate
active
07408941
ABSTRACT:
A method and computer system for auto-routing of multi-hop pseudowires is presented. A first Provider Edge (PE) device receives an advertisement from a layer 2 (L2) capable network device, the advertisement including routing state for reaching the L2 device. A first Border Gateway Protocol (BGP) table is populated with the routing state for the L2 capable network device which is reachable by way of an address family reserved for L2 end point reachability information. The first PE device advertises the first BGP table information within a first Service Provider (SP) network such that a multi-hop Pseudowire is capable of being established which includes the L2 capable device.
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Guichard James N.
Martini Luca
Nadeau Thomas D.
Patel Keyur
Chapin IP Law LLC
Chapin, Esq. Barry W.
Cisco Technology Inc.
Hsu Alpus H
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