发明授权
- 专利标题: Method and apparatus for interconnecting LANs
- 专利标题(中): 用于互连LAN的方法和装置
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申请号: US402235申请日: 1995-03-10
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公开(公告)号: US5600644A公开(公告)日: 1997-02-04
- 发明人: Tian-Pong P. Chang , Seyhan Civanlar , Vikram R. Saksena
- 申请人: Tian-Pong P. Chang , Seyhan Civanlar , Vikram R. Saksena
- 申请人地址: NJ Holmdel
- 专利权人: AT&T
- 当前专利权人: AT&T
- 当前专利权人地址: NJ Holmdel
- 主分类号: H04L12/46
- IPC分类号: H04L12/46 ; H04L12/56 ; H04Q11/04
摘要:
A so-called "ELAN contronect network" is employed to interconnect sub-ELANs to form an ELAN. More specifically, the "ELAN contronect network" is a separate network for interconnecting the servers of the sub-ELANs, where a sub-ELAN is a part of an ELAN having its own LES and BUS that may also be configured as a stand-alone ELAN. Each of the sub-ELANs is connected to the ELAN contronect network via a point-to-point connection-oriented connection, e.g., an asynchronous transfer mode (ATM) connection and the ELAN contronect network is configured to present itself to each of the servers of the sub-ELANs as clients thereof. In a particular embodiment of the invention, the ELAN contronect network includes an address server, a broadcast/route server, a configuration server, multimedia servers, and at least one LAN hub interconnected over a high-speed backbone. The address server contains an address data base for performing address resolution between the at least two addresses of each ELAN end-point in response to requests for such translations. The broadcast/route server receives data packets for broadcast to a different sub-ELAN from which the packets originated and broadcasts the received data packets to at least one other sub-ELAN. The broadcast/route server also recognizes that a packet which is a broadcast packet at layer 2 is actually a request for an address resolution at layer 3. If so, the broadcast/route server collaborates with the address server to perform the necessary address resolution and insures that a response is sent only to the client originating the request.
公开/授权文献
- US4953838A Work positioning device 公开/授权日:1990-09-04
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