Title:
PSEUDOWIRE SERVICING ACROSS MULTIPLE ADMINISTRATIVE SYSTEMS USING BORDER GATEWAY PROTOCOL-LINK STATE
Document Type and Number:
WIPO Patent Application WO/2019/076318
Kind Code:
A1
Abstract:
Servicing a pseudowire communication across multiple Administrative Systems (AS) by components of packet data networks. A first Provider Edge (PE) router of a first AS receives a first Interior Gateway Protocol (IGP) message from a source PE router of the first AS that includes pseudowire data. The first PE router creates a first Border Gateway Protocol Link State (BGP-LS) message that includes the pseudowire data and transmits the first BGP-LS message to a second PE router of a second AS and intended for a destination PE router of the second AS. The first PE router then receives a second BGP-LS message from the second PE router that includes modified pseudowire data. The first PE router creates a second IGP message that includes the modified pseudowire data and transmits the second IGP message to the source PE router.
Inventors:
CHUNDURI UMA S (US)
TANTSURA EVGENY (US)
TANTSURA EVGENY (US)
Application Number:
PCT/CN2018/110634
Publication Date:
April 25, 2019
Filing Date:
October 17, 2018
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04L45/50; H04L45/52; H04L45/741
Foreign References:
| US8422514B1 | 2013-04-16 | |||
| US20170012895A1 | 2017-01-12 | |||
| CN102201971A | 2011-09-28 |
Other References:
GREDLER, H. ET AL.: "North-Bound Distribution of Link-State and Traffic Engineering (TE) Information Using BGP", RFC 7752, 31 March 2016 (2016-03-31), pages 1 - 48, XP015110974
Download PDF: