(WO/2004/023732) METHOD AND APPARATUS FOR STORING A PORT IDENTIFIER IN A LAN SWITCH
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| Latest bibliographic data on file with the International Bureau
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| IPC: | H04L 12/46 (2006.01), H04L 12/56 (2006.01) | |||||||||||
| Applicants: | INFINEON TECHNOLOGIES AG [DE/DE]; St.-Martin-Strasse 53, 81669 Munich (DE) (All Except US). MISHRA, Shridhar, Mubaraq [IN/US]; (US) (US Only). ARDHANARI, Guruprasad [IN/SG]; (SG) (US Only). | |||||||||||
| Inventors: | MISHRA, Shridhar, Mubaraq; (US). ARDHANARI, Guruprasad; (SG). | |||||||||||
| Agent: | WATKIN, Timothy, Lawrence, Harvey; Lloyd Wise, Tanjong Pagar, P.O. Box 636, Singapore 910816 (SG). | |||||||||||
| Title: | METHOD AND APPARATUS FOR STORING A PORT IDENTIFIER IN A LAN SWITCH | |||||||||||
| Abstract: | A learning scheme for use in an Ethernet switch learns MAC addresses associated with ports. The MAC addresses are of devices in different VLANs. A packet, received at a given port, is analysed to find the source address and VLAN 10 value. The VLAN value is used to find a second hashing value (step 1). Then a hashing algorithm (step 2) generates an address within a memory at which the port is to be learnt (in step 3) using a hashing algorithm which is a function both of the MAC address and of the second hashing value. When later a second packet is received having a OA which is the same MAC address, the hashing algorithm (step 2) finds the look-up address at which a look up is performed (in step 3) using the MAC address and a second hashing value determined (in step 1) by the VLAN value of the second packet. | |||||||||||
| Designated States: |
AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NO, NZ, OM, PH, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, YU, ZA, ZM, ZW. African Regional Intellectual Property Org. (ARIPO) (GH, GM, KE, LS, MW, MZ, SD, SL, SZ, TZ, UG, ZM, ZW) Eurasian Patent Organization (EAPO) (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM) European Patent Office (EPO) (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE, SK, TR) African Intellectual Property Organization (OAPI) (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG). | |||||||||||
| Publication Language: | English (EN) |
| Filing Language: | English (EN) |
