Patent SG-11201807507W-A (SG)
Title: Extending an mpls network using commodity network devices
Inventor: VAN DUSSEN BRENT
IPC: H04L45/50
Filed: 2017-07-27
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization 1 MEM 0 11101 HOE HI 1 0 01111010 1110 1110111011111110 1111 011 International Bureau (10) International Publication Number (43) International Publication Date .....0\"\" WO 2018/020447 Al 01 February 2018 (01.02.2018) W I P0 I P C T (51) International Patent Classification: (74) Agent: AJ PARK IP PTY LTD; Level 14, 111 Elizabeth HO4L 12/723 (2013.01) HO4L 12/773 (2013.01) Street, Sydney, New South Wales 2000 (AU). (21) International Application Number: (81) Designated States (unless otherwise indicated, for every PCT/IB2017/054552 kind of national protection available): AE, AG, AL, AM, (22) International Filing Date: AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, 27 July 2017 (27.07.2017) CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, (25) Filing Language: English HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, (26) Publication Language: English KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, (30) Priority Data: 15/220,943 27 July 2016 (27.07.2016) US OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (71) Applicant: MEGAPORT (SERVICES) PTY LTD [AU/AU]; 14-16 Church Street, Fortitude Valley, Queens- (84) Designated States (unless otherwise indicated, for every land 4006 (AU). kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, (72) Inventor: VAN DUSSEN, Brent; c/o Megaport (Services) UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, Pty Ltd, 14-16 Church Street, Fortitude Valley, Queensland 4006 (AU). TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, — MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, = (54) Title: EXTENDING AN MPLS NETWORK USING COMMODITY NETWORK DEVICES = 326d = — Customer Network D 320b 324b = 302d = Customer Network C = 302c = 308a 308b 326e = — 320c = MPLS Core Network 324c 322 Customer Network E = 302e 320d = Provider Network = X ad 308c P . \ = 326d 326c = 111 eN, Customer Network A 302a 320a Customer Network B 300 302b l Il FIG. 3 324a IN 71' 71' 0 (57) : A provider network can expand an IP/MPLS core using commodity network devices at the edge of the provider network el c:::: , to connect customer networks. Upon receiving a request to establish a connection between a first customer network and a second -- --- GC customer network, the provider network can update a mapping of local VLAN IDs to provider edge port VLAN IDs and program the ,-1 commodity network devices using push, pop, or swap VLAN operations to correctly transport traffic from the edge of the network 0 into the core of the network where higher order functionality exists. Resiliency for the expansion network can be provided using N primary/secondary network uplinks. C [Continued on next page] WO 2018/020447 Al 1#110figinigE101111010101HOHOH11EEM TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). Published: — with international search report (Art. 21(3)) — before the expiration of the time limit for amending the claims and to be republished in the event of receipt of amendments (Rule 48.2(h))