CA2169493A1 - Method and apparatus for interconnecting atm emulated lans - Google Patents

Method and apparatus for interconnecting atm emulated lans

Info

Publication number
CA2169493A1
CA2169493A1 CA2169493A CA2169493A CA2169493A1 CA 2169493 A1 CA2169493 A1 CA 2169493A1 CA 2169493 A CA2169493 A CA 2169493A CA 2169493 A CA2169493 A CA 2169493A CA 2169493 A1 CA2169493 A1 CA 2169493A1
Authority
CA
Canada
Prior art keywords
elan
sub
broadcast
network
contronect
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA2169493A
Other languages
French (fr)
Other versions
CA2169493C (en
Inventor
Tian-Pong Peter Chang
Seyhan Civanlar
Vikram R. Saksena
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AT&T Corp
Original Assignee
AT&T IPM Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by AT&T IPM Corp filed Critical AT&T IPM Corp
Publication of CA2169493A1 publication Critical patent/CA2169493A1/en
Application granted granted Critical
Publication of CA2169493C publication Critical patent/CA2169493C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/46—Interconnection of networks
    • H04L12/4604—LAN interconnection over a backbone network, e.g. Internet, Frame Relay
    • H04L12/4608—LAN interconnection over ATM networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
    • H04Q11/0428—Integrated services digital network, i.e. systems for transmission of different types of digitised signals, e.g. speech, data, telecentral, television signals
    • H04Q11/0478—Provisions for broadband connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/54—Store-and-forward switching systems 
    • H04L12/56—Packet switching systems
    • H04L12/5601—Transfer mode dependent, e.g. ATM
    • H04L2012/5614—User Network Interface
    • H04L2012/5615—Network termination, e.g. NT1, NT2, PBX
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/54—Store-and-forward switching systems 
    • H04L12/56—Packet switching systems
    • H04L12/5601—Transfer mode dependent, e.g. ATM
    • H04L2012/5619—Network Node Interface, e.g. tandem connections, transit switching

Abstract

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.
CA002169493A 1995-03-10 1996-02-14 Method and apparatus for interconnecting atm emulated lans Expired - Lifetime CA2169493C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US402,235 1995-03-10
US08/402,235 US5600644A (en) 1995-03-10 1995-03-10 Method and apparatus for interconnecting LANs

Publications (2)

Publication Number Publication Date
CA2169493A1 true CA2169493A1 (en) 1996-09-11
CA2169493C CA2169493C (en) 2000-04-11

Family

ID=23591088

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002169493A Expired - Lifetime CA2169493C (en) 1995-03-10 1996-02-14 Method and apparatus for interconnecting atm emulated lans

Country Status (7)

Country Link
US (1) US5600644A (en)
EP (1) EP0731582A3 (en)
JP (1) JPH098838A (en)
CN (1) CN1135689A (en)
CA (1) CA2169493C (en)
MX (1) MX9600885A (en)
SG (1) SG64900A1 (en)

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Also Published As

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EP0731582A3 (en) 1997-06-25
CN1135689A (en) 1996-11-13
SG64900A1 (en) 1999-05-25
US5600644A (en) 1997-02-04
EP0731582A2 (en) 1996-09-11
CA2169493C (en) 2000-04-11
MX9600885A (en) 1997-02-28
JPH098838A (en) 1997-01-10

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