WO2002037936B1 - Methods and apparatus for scalable, distributed management of virtual private networks - Google Patents

Methods and apparatus for scalable, distributed management of virtual private networks

Info

Publication number
WO2002037936B1
WO2002037936B1 PCT/US2001/049871 US0149871W WO0237936B1 WO 2002037936 B1 WO2002037936 B1 WO 2002037936B1 US 0149871 W US0149871 W US 0149871W WO 0237936 B1 WO0237936 B1 WO 0237936B1
Authority
WO
WIPO (PCT)
Prior art keywords
nodes
master
subsets
vpn
master nodes
Prior art date
Application number
PCT/US2001/049871
Other languages
French (fr)
Other versions
WO2002037936A3 (en
WO2002037936A2 (en
WO2002037936A8 (en
Inventor
David Stringer-Calvert
Steven Dawson
Patrick Lincoln
Original Assignee
Stanford Res Inst Int
David Stringer-Calvert
Steven Dawson
Patrick Lincoln
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 Stanford Res Inst Int, David Stringer-Calvert, Steven Dawson, Patrick Lincoln filed Critical Stanford Res Inst Int
Priority to AU2002234086A priority Critical patent/AU2002234086A1/en
Publication of WO2002037936A2 publication Critical patent/WO2002037936A2/en
Publication of WO2002037936A3 publication Critical patent/WO2002037936A3/en
Publication of WO2002037936B1 publication Critical patent/WO2002037936B1/en
Publication of WO2002037936A8 publication Critical patent/WO2002037936A8/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/40—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass for recovering from a failure of a protocol instance or entity, e.g. service redundancy protocols, protocol state redundancy or protocol service redirection
    • 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
    • H04L12/4641—Virtual LANs, VLANs, e.g. virtual private networks [VPN]
    • H04L12/4675—Dynamic sharing of VLAN information amongst network nodes
    • H04L12/4679—Arrangements for the registration or de-registration of VLAN attribute values, e.g. VLAN identifiers, port VLAN membership
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/40—Network security protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/40—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks using virtualisation of network functions or resources, e.g. SDN or NFV entities

Abstract

A groupware management system for collaborative groups is disclosed that is scalable to support large, dynamic, multiple, and other virtual VPNs. The system may introduce a graph (or hierarchical) structure to the VPN (200), providing multiple master nodes controlling membership in subsets of the collaborative group. Use of multiple master nodes in a graph-structured (or hierarchical) network topology often relaxes the need for single, centralized globally consistent view of VPN group membership, and enables distribution of the management burden among multiple master nodes. Membership in the VPN may be changed dynamically by the second master node (240) for the member nodes (250 a-c) of the second subset, without requiring the first master node (210) to dynamically update its group membership records to reflect the change and in many cases without even having to notify the first master node (and vice versa), for example. In further embodiments, the use of multiple master nodes may increase the reliability and efficiency of VPNs, such as by enabling load balancing of master node tasks. Fail-over mechanisms may also be used to transparently re-route management tasks to an alternate master node especially in the case of failure of the current master node serving a given member node.

Claims

AMENDED CLAIMS[received by the International Bureau on 30 July 2002 (30.07.02); original claim 1 amended; remaining claims unchanged (2 pages)]
1. A group management system comprising: a plurality of interconnected nodes communicatively coupled with each other in a graph structure as member nodes of a virtual private network ("VPN")» wherein at least two of the member nodes are coupled to each other by more than one path; and a plurality of master nodes, each of the master nodes controlling membership in the VPN for an associated non-empty subset of the member nodes.
2. The system of claim 1 wherein a membership change in at least one of the subsets can be performed without notifying all of the master nodes not associated with the changed subset.
3. The system of claim 1 wherein at least two of the subsets do not share any member nodes in common.
4. The system of claim I wherein at least two of the subsets share at least one member node in common.
5. The system of claim 4 wherein a communication involving said common member node can be transmitted along multiple paths.
6. The system of claim 5, further comprising an intrusion detection mechanism that receives said multiple-path communication as input.
7. The system of claim 1 wherein in the event one of the master nodes fails, the associated subset of member nodes will be automatically reassigned to one or more other of the master nodes.
8. The system of claim 7, wherein each of the member nodes is associated with at least one of the master nodes as a back-up master.
9. The system of claim 1 wherein the plurality of interconnected nodes are communicatively coupled as part of a peer-io-peer network.
10. The system of claim 1 wherein the plurality of master nodes are part of an edge- based content delivery network.
11. The system of claim I wherein the member nodes are allocated to the subsets at leasi partly based upon one or more criteria of connectivity between each of the member nodes and the corresponding master nodes,
12. The system of claim 11 wherein the connectivity criteria are selected from a group of criteria comprising geographical distance, topological distance, bandwidth, latency, jitter, financial cost, and political boundaries.
13. The system of claim I wherein at least one of the master nodes further controls membership in another virtual overlay group different from the VPN.
14. The system of claim 1 wherein a communication from a first one of the subsets of the member nodes uses a first encryption key, and a communication from a second one of the subsets uses a second encryption key that is different from the first encryption key.
15. The system of claim 14, wherein one or more of the master nodes are operable to translate between the encryption keys.
16. The system of claim 1 wherein a communication from a first one of the subsets of the member nodes and a communication from a second one of the subsets of the member nodes both use the same encryption key,
17. The system of claim I wherein at least one of the master nodes are operable to remotely install software communication mechanisms for a new member node of the VPN without the necessity of installing augmented hardware for the new member node.
19
PCT/US2001/049871 2000-11-08 2001-11-08 Methods and apparatus for scalable, distributed management of virtual private networks WO2002037936A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002234086A AU2002234086A1 (en) 2000-11-08 2001-11-08 Methods and apparatus for scalable, distributed management of virtual private networks

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US24748800P 2000-11-08 2000-11-08
US60/247,488 2000-11-08
US24718400P 2000-11-09 2000-11-09
US60/247,184 2000-11-09
US09/844,693 US7403980B2 (en) 2000-11-08 2001-04-26 Methods and apparatus for scalable, distributed management of virtual private networks
US09/844,693 2001-04-26

Publications (4)

Publication Number Publication Date
WO2002037936A2 WO2002037936A2 (en) 2002-05-16
WO2002037936A3 WO2002037936A3 (en) 2002-09-12
WO2002037936B1 true WO2002037936B1 (en) 2003-03-20
WO2002037936A8 WO2002037936A8 (en) 2003-10-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/049871 WO2002037936A2 (en) 2000-11-08 2001-11-08 Methods and apparatus for scalable, distributed management of virtual private networks

Country Status (3)

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US (1) US7403980B2 (en)
AU (1) AU2002234086A1 (en)
WO (1) WO2002037936A2 (en)

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WO2002037936A2 (en) 2002-05-16
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US20020055989A1 (en) 2002-05-09
US7403980B2 (en) 2008-07-22

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