Patente US8144620 - Method and system for implementing network connection service

US008144620B2

(12) Umted States Patent (16) Patent N6; US 8,144,620 B2 Xu (45) Date of Patent: Mar. 27, 2012 (54) METHOD AND SYSTEM FOR (56) References Cited IMPLEMENTING NETWORK CONNECTION SERVICE U.S. PATENT DOCUMENTS 5,825,772 A * 10/1998 Dobbins et al. ............. .. 370/396 (75) Inventor: Yongliang Xu, Shenzhen (CN) 6,249,576 B1 6/2001 Sassin eH11~ (Continued) (73) Assignee: Huawei Technologies Co., Ltd., Shenzhen (CN) FOREIGN PATENT DOCUMENTS CN 1394036 A 1/2003 ( * ) Notice: Subject to any disclaimer, the term of this (Continued) patent is extended or adjusted under 35 U.S.C. 154(b) by 505 days. OTHER PUBLICATIONS _ Ashwood-Smit11 et al., “Generalized Multi-Protocol Label Switching (21) APPL No" 12/094,663 (GMPLS) Signaling Constraint-based Routed Label Distribution . _ Protocol (CR-LDP) Extensions,” The Internet Society Network (22) PCT F11ed' NOV‘ 14’ 2006 Working Group, Request for Comments 3472, 1-23 (Jan. 2003). (86) PCT No.: PCT/CN2006/003057 (Continued) § 371 (0)0), Pr,-ma, _ y Examzner 4 Aung S Moe (2)’ (4) Date' May 22’ 2008 Assistant Examiner 4 Benjamin H Elliott, IV (87) PCT pub NO; W02007/059695 (74) Attorney, Agent, or Firm 4 Leyig, Voit & Mayer, Ltd. PCT Pub. Date: May 31, 2007 (57) ABSTRACT (65) Prior Publication D at a A method and system for implementing a network connection service is provided. In the invention, the port information of US 2008/0273473 A1 Nov. 6, 2008 the network ingress node and the network egress node is _ _ _ _ _ registered with the directory server or configured manually. (30) Forelgn Appllmtlon Prlorlty Data During the establishment of the network service connection, a request for establishing the network connection service NOV. 24, 2005 (CN) ........................ .. 2005 1 0101835 between the Source user node and the destination user node is initiated, and the directory server is queried in response to the (51) Int‘ Cl‘ request to obtain the connection and adaptation mode for H041‘ 12/28 (200601) establishing the network connection service, which is supH04L 12/56 (200601) ported by both the network ingress node and the network (52) US‘ Cl‘ ~~~~~~ ~~ 370/254; /225257; /325278; 377(;)9//329396; egress node, and the network connection is established and ; ; the adaptation configuration is performed according to the of Classification Search . . . . . . . . . . . . . . . . .. connection and adaptation mode to establish the network 370/255, 357, 393, 399, 395.53; 709/2274228, Connection SerViCe_ 709/236, 244

Control
module
1
MPLS
To user node ‘ Cross module 1 To Other node
i ‘ User interface Line interface ‘
‘ module ‘ module ‘ '
(Ethernet) {/C_4 ( SDI-I)

Cross module

Page 2 U.S. PATENT DOCUMENTS EP 1 343 274 A2 2/2003 * 6,741,585 B1 5/2004 Munozetal. 5; 12331;‘ 3; 3/533; 6,985,488 B2 * 1/2006 Pan et al. ................. .. 370/395.3 EP 1460 808 A2 3/2004 7,031,256 B2 * 4/2006 Hamlin et al. 370/230 W0 WO 00/70885 A1 11/2000 7,372,870 B2 * 5/2008 Huang et al. ..... .. . 370/466 W0 W0 03/056776 Al 7/2003 7,417,950 B2 * 8/2008 Hofmeister et al. . 370/230 7,492,763 B1 * 2/2009 Alexander, Jr. . 370/389 QTHER PUBLICATIQNS 7,577,117 B2 * 8/2009 Cho et al. . 370/329 200 1/ 0012271 A1 * 8/2001 Berger ...... .. . 370/230 Berger et al., “Generalized Multi-Protocol Label Switching 2003/ 0167341 Al * 9/ 2003 Hayashi et al. . ~ 709/ 238 (GMPLS) Signaling Resource ReserVation Protocol-Traffic Engi8(1) * grammil 370/406 neering (RSVP-TE) Extensions,” The Internet Society Network 2004/0184441 Al 9/2004 v;1lt1e:ta:11l‘e """""""""" " Working Group, Request for Comments 3473, 1-42 (Jan. 2003). 2004/0184803 A1 * 9/2004 Chang et 31‘ “““““““““ “ 398/5-8 European Patent Office, Notice ofOpposition in European Patent No. 2005/0068890 A1* 3/2005 Ellis et al. ................... .. 370/229 195396? (Jun 30, 2010) _ _ _ _ _ _ 2005/0073955 A1* 4/2005 MacLean et 31, 370/235 International Telecommunications Union, “Series G: Transm1ss1on 2005/0096016 A1 * 5/2005 Tervo et 31, ,,,,,, ,, , 455/414,1 systems and media, digital systems and networks; Series Y: Global 200 5/014 1042 A1 * 6/200 5 Kawasaki et 31, ,,,,,,,,,,, H 358/402 information infrastructure and internet protocol aspects,” ITU-T Rec2005/0141567 A1* 6/2005 Jaber et al. .................. .. 370/537 ommendation G.7712/Y.1703 (Mar. 2003). 2005/ 0226424 A1 * 10/2005 Takata et al. . 380/279 State Intellectual Property Office of the People’S Republic of China, 2005/ 0238049 A1 * 10/ 2005 Delregno .................... .. 370/466 Written Opinion of the International Searching Authority in Interna2008/0008184 A1 * 1/2008 Hayashi et al. ............. .. 370/392 tional Patent Application No. PCT/CN2006/003057 ()Mar. 15, 2008/0189426 A1* 8/2008 Xu ............ .. . 709/227 2007), 2008/ 0259795 A1 * 10/2008 Fiaschi et al. . 370/232 State Intellectual Property Office of the People’S Republic of China, 2008/ 0273473 Al * 11/ 2008 Xu .............................. .. 370/255 Examination Report in Chinese Patent Application No. 200510108357 (Jul. 27, 2007). FOREIGN PATENT DOCUMENTS Wahl et al., “Lightweight Directory Access Protocol (v3),” The CN 1444360 A 9/2003 Internet Society Network Working Group, Request for Comments 20 12:00: 13/5882 CN 1859369 A 11/2006 * cited by examiner

S100

Initiate a request for establishing a network connection service J
between a source user node and a destination user node

S20
Query a directory server in response to the request to obtain 0
a connection and adaptation mode which is supported by a J
network ingress node and a network egress node for
establishing the network connection service

S300

Establish the network connection and perform adaptation /
configuration according to the connection and adaptation
mode to implement the network connection service