发明名称 |
INTERFACE TO NETWORK PROTOCOL SOFTWARE TO SUPPORT HARDWARE ACCELERATION OF CRITICAL FUNCTIONS |
摘要 |
LAN interface logic (33) receives frames from a LAN segment (32), and frame transport logic (40, 54, 56) transfers frames to and from an ATM network. Forwarding logic (36) is used to (i) determine whether a mapping between a destination address (DA) and a virtual connection (VC) in the ATM network exists, (ii) forward frames containing a known DA to the frame transport logic for transfer to the ATM network, (iii) forward frames containing unknown DAs to the frame transport logic for transfer to a broadcast and unknown server (BUS 74) in the ATM network, and (iv) pass unknown DAs to a LAN emulation client (LEC) processor (42, Fig. 5) to resolve the address. The LEC processor creates a LAN emulation address resolution protocol (LE_ARP) request message containing the unknown DA, and the LE_ARP request message is transferred to a LAN emulation server (LES 76). The LES returns an ATM address of a remote LEC via which the destination node can be reached. The LEC processor uses the ATM address to establish a new VC to the destination node, and provides the DA-VC mapping to the forwarding logic for use in forwarding subsequently received frames.
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申请公布号 |
WO0076168(A3) |
申请公布日期 |
2001.06.28 |
申请号 |
WO2000US15346 |
申请日期 |
2000.06.02 |
申请人 |
FUJITSU NETWORK COMMUNICATIONS, INC. |
发明人 |
ALLINGHAM, JON;PIETSCH, BRUCE;MCNEIL, ROY;PARK, JAE |
分类号 |
H04L12/46;H04L12/56;H04Q11/04;(IPC1-7):H04L12/46 |
主分类号 |
H04L12/46 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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