WO2008024882A3 - Maintaining filtering database consistency - Google Patents

Maintaining filtering database consistency Download PDF

Info

Publication number
WO2008024882A3
WO2008024882A3 PCT/US2007/076578 US2007076578W WO2008024882A3 WO 2008024882 A3 WO2008024882 A3 WO 2008024882A3 US 2007076578 W US2007076578 W US 2007076578W WO 2008024882 A3 WO2008024882 A3 WO 2008024882A3
Authority
WO
WIPO (PCT)
Prior art keywords
switch
entry
destination address
information
filtering database
Prior art date
Application number
PCT/US2007/076578
Other languages
French (fr)
Other versions
WO2008024882A2 (en
Inventor
Torkil Oelgaard
Joergen P R Hofman-Bang
Original Assignee
Vitesse Semiconductor Corp
Torkil Oelgaard
Joergen P R Hofman-Bang
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 Vitesse Semiconductor Corp, Torkil Oelgaard, Joergen P R Hofman-Bang filed Critical Vitesse Semiconductor Corp
Publication of WO2008024882A2 publication Critical patent/WO2008024882A2/en
Publication of WO2008024882A3 publication Critical patent/WO2008024882A3/en

Links

Classifications

    • 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
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/02—Topology update or discovery
    • 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
    • H04L45/66—Layer 2 routing, e.g. in Ethernet based MAN's
    • 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
    • H04L49/00—Packet switching elements
    • H04L49/30—Peripheral units, e.g. input or output ports
    • H04L49/3009—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
    • H04L49/35—Switches specially adapted for specific applications
    • H04L49/354—Switches specially adapted for specific applications for supporting virtual local area networks [VLAN]

Abstract

Information is shared between switches such as bridges to facilitate efficient forwarding of data. In some embodiments consistency is maintained between information stored in filtering databases for IEEE 802. 1D or 802. 1Q bridges. When a switch does not have an entry in a filtering database that matches a destination address in a received frame, the switch may send information with the forwarded frame indicating that the switch had no entry for the destination address. When a switch that has an entry for a given destination address receives a frame along with an indication that the sender did not have an entry or has a different entry for the destination address, the switch may send its information corresponding to the destination address to other switches.
PCT/US2007/076578 2006-08-22 2007-08-22 Maintaining filtering database consistency WO2008024882A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/508,361 2006-08-22
US11/508,361 US7636352B2 (en) 2006-08-22 2006-08-22 Maintaining filtering database consistency

Publications (2)

Publication Number Publication Date
WO2008024882A2 WO2008024882A2 (en) 2008-02-28
WO2008024882A3 true WO2008024882A3 (en) 2008-08-28

Family

ID=39107663

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/076578 WO2008024882A2 (en) 2006-08-22 2007-08-22 Maintaining filtering database consistency

Country Status (2)

Country Link
US (1) US7636352B2 (en)
WO (1) WO2008024882A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110270979A1 (en) * 2009-01-12 2011-11-03 Schlansker Michael S Reducing Propagation Of Message Floods In Computer Networks
US8654680B2 (en) * 2010-03-16 2014-02-18 Force10 Networks, Inc. Packet forwarding using multiple stacked chassis
CN103812779B (en) 2012-11-08 2018-03-09 华为技术有限公司 The processing method of flooding, device
CN110741610B (en) 2017-01-09 2021-11-12 马维尔亚洲私人有限公司 Port expander with local switching

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030142680A1 (en) * 2002-01-28 2003-07-31 Naoki Oguchi Device, network, and system for forwarding frames between geographically dispersed user networks
US20030179707A1 (en) * 1999-01-11 2003-09-25 Bare Ballard C. MAC address learning and propagation in load balancing switch protocols
US6757279B1 (en) * 2000-05-20 2004-06-29 3Com Corporation Method for synchronizing databases in stacked network units
US20050147111A1 (en) * 2003-12-24 2005-07-07 Prabhanjan Moleyar Updating address tables

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US5343471A (en) * 1992-05-11 1994-08-30 Hughes Aircraft Company Address filter for a transparent bridge interconnecting local area networks
KR960014983B1 (en) * 1992-08-31 1996-10-23 가부시끼가이샤 도시바 Local area network bridge apparatus with dedicated packet fittering mechanism
JPH0795231A (en) * 1993-07-29 1995-04-07 Toshiba Corp Inter-lan connecting device
US5959976A (en) * 1996-12-09 1999-09-28 Kuo; Yung-Tien Method and device for filtering transmission
US5909686A (en) * 1997-06-30 1999-06-01 Sun Microsystems, Inc. Hardware-assisted central processing unit access to a forwarding database
US6707818B1 (en) * 1999-03-17 2004-03-16 Broadcom Corporation Network switch memory interface configuration
US6813268B1 (en) * 1999-05-21 2004-11-02 Broadcom Corporation Stacked network switch configuration
US6952421B1 (en) * 1999-10-07 2005-10-04 Cisco Technology, Inc. Switched Ethernet path detection
EP1162795A3 (en) * 2000-06-09 2007-12-26 Broadcom Corporation Gigabit switch supporting improved layer 3 switching
US6999455B2 (en) * 2000-07-25 2006-02-14 Broadcom Corporation Hardware assist for address learning
US20020124107A1 (en) * 2000-12-19 2002-09-05 Michele Goodwin Vlan advertisement protocol (VAP)
US6993033B1 (en) * 2001-04-04 2006-01-31 Advanced Micro Devices, Inc. Method and apparatus for synchronizing aging operations associated with an address table
US7139267B2 (en) 2002-03-05 2006-11-21 Industrial Technology Research Institute System and method of stacking network switches
GB2384956B (en) * 2002-02-02 2004-01-21 3Com Corp Stacked network routers
CN100370740C (en) * 2004-03-06 2008-02-20 鸿富锦精密工业（深圳）有限公司 Management method of stacked switch
US7139367B1 (en) * 2004-09-29 2006-11-21 Khai Minh Le Time share digital integration method and apparatus for processing X-ray images
US7483383B2 (en) * 2004-10-28 2009-01-27 Alcatel Lucent Stack manager protocol with automatic set up mechanism
US7593400B2 (en) * 2006-05-19 2009-09-22 Corrigent Systems Ltd. MAC address learning in a distributed bridge

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030179707A1 (en) * 1999-01-11 2003-09-25 Bare Ballard C. MAC address learning and propagation in load balancing switch protocols
US6757279B1 (en) * 2000-05-20 2004-06-29 3Com Corporation Method for synchronizing databases in stacked network units
US20030142680A1 (en) * 2002-01-28 2003-07-31 Naoki Oguchi Device, network, and system for forwarding frames between geographically dispersed user networks
US20050147111A1 (en) * 2003-12-24 2005-07-07 Prabhanjan Moleyar Updating address tables

Also Published As

Publication number Publication date
US20080049612A1 (en) 2008-02-28
WO2008024882A2 (en) 2008-02-28
US7636352B2 (en) 2009-12-22

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