GB2344498B - An apparatus for transferring input/output data among a plurality of processors having respective local memories - Google Patents

An apparatus for transferring input/output data among a plurality of processors having respective local memories

Info

Publication number
GB2344498B
GB2344498B GB9930726A GB9930726A GB2344498B GB 2344498 B GB2344498 B GB 2344498B GB 9930726 A GB9930726 A GB 9930726A GB 9930726 A GB9930726 A GB 9930726A GB 2344498 B GB2344498 B GB 2344498B
Authority
GB
United Kingdom
Prior art keywords
processors
output data
respective local
local memories
transferring input
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.)
Expired - Lifetime
Application number
GB9930726A
Other versions
GB2344498A (en
GB9930726D0 (en
Inventor
Mark S Isfeld
Bruce W Mitchell
Michael John Seaman
Tracy D Mallory
Nagaraj Arunkumar
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.)
3Com Corp
Original Assignee
3Com 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
Priority claimed from US08/438,897 external-priority patent/US5592622A/en
Priority claimed from US08/599,473 external-priority patent/US5802278A/en
Application filed by 3Com Corp filed Critical 3Com Corp
Publication of GB9930726D0 publication Critical patent/GB9930726D0/en
Publication of GB2344498A publication Critical patent/GB2344498A/en
Application granted granted Critical
Publication of GB2344498B publication Critical patent/GB2344498B/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
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H04L47/30—Flow control; Congestion control in combination with information about buffer occupancy at either end or at transit nodes
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/38—Information transfer, e.g. on bus
    • G06F13/382—Information transfer, e.g. on bus using universal interface adapter
    • G06F13/387—Information transfer, e.g. on bus using universal interface adapter for adaptation of different data processing systems to different peripheral devices, e.g. protocol converters for incompatible systems, open system
    • 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
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H04L47/24—Traffic characterised by specific attributes, e.g. priority or QoS
    • H04L47/2425—Traffic characterised by specific attributes, e.g. priority or QoS for supporting services specification, e.g. SLA
    • H04L47/2433—Allocation of priorities to traffic types
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/50—Queue scheduling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/50—Queue scheduling
    • H04L47/62—Queue scheduling characterised by scheduling criteria
    • H04L47/6215—Individual queue per QOS, rate or priority
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L49/00—Packet switching elements
    • H04L49/10—Packet switching elements characterised by the switching fabric construction
    • H04L49/104—Asynchronous transfer mode [ATM] switching fabrics
    • H04L49/105—ATM switching elements
    • H04L49/108—ATM switching elements using shared central buffer
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L49/00—Packet switching elements
    • H04L49/25—Routing or path finding in a switch fabric
    • H04L49/256—Routing or path finding in ATM switching fabrics
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L49/00—Packet switching elements
    • H04L49/30—Peripheral units, e.g. input or output ports
    • H04L49/3081—ATM peripheral units, e.g. policing, insertion or extraction
    • H04L49/309—Header conversion, routing tables or routing tags
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L49/00—Packet switching elements
    • H04L49/90—Buffering arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L49/00—Packet switching elements
    • H04L49/90—Buffering arrangements
    • H04L49/901—Buffering arrangements using storage descriptor, e.g. read or write pointers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L49/00—Packet switching elements
    • H04L49/90—Buffering arrangements
    • H04L49/9042—Separate storage for different parts of the packet, e.g. header and payload
    • 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
    • H04L2012/5638—Services, e.g. multimedia, GOS, QOS
    • H04L2012/5646—Cell characteristics, e.g. loss, delay, jitter, sequence integrity
    • H04L2012/5651—Priority, marking, classes
    • 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
    • H04L2012/5678—Traffic aspects, e.g. arbitration, load balancing, smoothing, buffer management
    • H04L2012/5681—Buffer or queue management
GB9930726A 1995-05-10 1996-05-09 An apparatus for transferring input/output data among a plurality of processors having respective local memories Expired - Lifetime GB2344498B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/438,897 US5592622A (en) 1995-05-10 1995-05-10 Network intermediate system with message passing architecture
US08/599,473 US5802278A (en) 1995-05-10 1996-01-23 Bridge/router architecture for high performance scalable networking
GB9724996A GB2316843B (en) 1995-05-10 1996-05-09 Bridge router for high performance scalable networking

Publications (3)

Publication Number Publication Date
GB9930726D0 GB9930726D0 (en) 2000-02-16
GB2344498A GB2344498A (en) 2000-06-07
GB2344498B true GB2344498B (en) 2000-10-18

Family

ID=27269105

Family Applications (2)

Application Number Title Priority Date Filing Date
GB9930726A Expired - Lifetime GB2344498B (en) 1995-05-10 1996-05-09 An apparatus for transferring input/output data among a plurality of processors having respective local memories
GB9930727A Expired - Lifetime GB2344499B (en) 1995-05-10 1996-05-09 A method for transferring data on a communication medium from a source processor to a destination processor, the data including messages of a first transmit

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB9930727A Expired - Lifetime GB2344499B (en) 1995-05-10 1996-05-09 A method for transferring data on a communication medium from a source processor to a destination processor, the data including messages of a first transmit

Country Status (1)

Country Link
GB (2) GB2344498B (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5088090A (en) * 1990-01-31 1992-02-11 Rad Network Devices Ltd. Routing system to interconnect local area networks
US5093824A (en) * 1990-03-27 1992-03-03 Bell Communications Research, Inc. Distributed protocol for improving the survivability of telecommunications trunk networks

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4630261A (en) * 1984-07-30 1986-12-16 International Business Machines Corp. Integrated buffer management and signaling technique
US5553061A (en) * 1994-06-27 1996-09-03 Loral Fairchild Corporation Packet processor having service priority and loss priority features

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5088090A (en) * 1990-01-31 1992-02-11 Rad Network Devices Ltd. Routing system to interconnect local area networks
US5093824A (en) * 1990-03-27 1992-03-03 Bell Communications Research, Inc. Distributed protocol for improving the survivability of telecommunications trunk networks

Also Published As

Publication number Publication date
GB2344498A (en) 2000-06-07
GB2344499B (en) 2000-10-18
GB2344499A (en) 2000-06-07
GB9930726D0 (en) 2000-02-16
GB9930727D0 (en) 2000-02-16

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732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

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PE20 Patent expired after termination of 20 years

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732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

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