Patent AU-2012231488-A1 (AU)
Title: Ethernet ring protection switching method, network device and system
Inventor: LONG HAO
IPC: H04L12/24
Filed: 2012-04-28
Abstract: (12) tflItAW&JPiP*A s*iW (10) (43)EJV0#f WO 2012/126412 A2 2012 * 9 P] 27 H (27.09.2012) WIPO I P T W T (51) 4#" * &I -9 J 4 LT M4 *jEx Z A I] L th4 32 A Ira N T, A )L H04L 12/24 (2006.01) 8F-6, Beijing 100082 (CN)o (21) RWEP-" : PCT/CN2012/074927 (81) ( [-A*N%?%${($2 { (22) 09 Y* i: 2012 4 4 A9 28 H (28.04.2012) tP): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, 1BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, (25) $4*c: CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, Fl, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, (26) P : KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, (71) $ A ( W N# , k f 1 WVnt, ): J- LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, (HUAWEI TECHNOLOGIES CO., LTD.) NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, [CN/CN]; ) 1 SNW )[[T2t Zt& TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, )i &, Guangdong 518129 (CN)0 ZA, ZM, ZW (72) A CA; A (84) I5t K-W$TVMftf f (75) A CA / *-*A (N -4 ): At (LONG, Hao) t): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, [CN/CN]; ):P E F)[int&HI2t,9AF RW, SD, SL, SZ, TZ, UG, ZM, ZW), R A (AM, AZ, )i t, Guangdong 518129 (CN)o W5 (XIE, Rong) BY, KG, KZ, RU, TJ, TM), RU)VII (AL, AT, BE, BG, CH, [CN/CN]; ) 1 AKW)[[t$i llt H$tt9 CY, CZ, DE, DK, EE, ES, Fl, FR, GB, GR, HR, HU, IE, )i &, Guangdong 518129 (CN)_ o I/J@V (SHEN, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, Xiaojun) [CN/CN]; + J' S ftt [[11Ti I1&I RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, - 9Sd$t&Ak, Guangdong 518129 (CN)o GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)O (74) Rf A: I |*LARN$ (LEADER PATENT & TRADEMARK FIRM); 1 N (54) Title: METHOD, NETWORK DEVICE AND SYSTEM FOR ETHERNET RING PROTECTION SWITCHING = (54)W1tKL0RJIt41ttIiktt (57) Abstract: Provided are a method, network -A 'Arf- device and system for Ethernet Ring Protection #3t r E P 01 Switching. In the embodiments of the present in vention, change in the bandwidth of a first link is decided by way of a node obtaining bandwidth in formation about the first link on the Ethernet ring where the node is located, with the Ethernet ring d ' ER 1& r7,Ade F3 'i \ 102 having at least one Ethernet Ring Protection ex ample, then the node determines a port thereof through which the at least one Ethernet Ring Pro tection example passes, so that the node can query r rthe correlation between the preconfigured bandsatM-rI4-4t4~491,it$%AM 103 width information and switching information 26 1 Fig. 1 about each link on the Ethernet ring and perform the switching operation corresponding to the 101 CHANGE IN THE BANDWIDTH OF A FIRST LINK IS DECIDED BY WAY OF A bandwidth information about the first link via the ODE OBTAIN NING BANDWIDTH INFORMATION ABOUT THE FIRST INK ON THErO node. ETHERNET RINC WHERE THE NODE IS LOCATED WITH THE ETHERNET RING porf ithne. HAVING AT LEAST ONE ERP EXAMPLE 102 THE NODE DETERMINES A PORT THEREOF THROUGH WHICH THE AT LEAST ONE ERP EXAMPLE PASSES 103 THE NODE QUERIES THE CORRELATION BETWEEN THE PRECONFIGURED BANDWIDTH INFORMATION AND SWITCHING INFORMATION ABOUT EACH LINK ON THE ETHERNET RING AND PERFORMS THE SWITCHING OPERATION CORRESPONDING TO THE BANDWIDTH INFORMATION ABOUT THE FIRST LINK VIA THE PORT OF THE NODE WO 2012/126412 A2 111111111 111111111I111111~ I VI V~ V~ IV II~VIIVI ~II IIVI I A F Af n Af , L 21 *,(2)(a PT F J(M)FlJlJ48.2(g)), (57) 1§1 A- VA MJ i AT -f O ;pJ* t f5 t jAi_ i*-4 4t -i- t Y