EP1743462A1 - Einrichtung zur session-basierten vermittlung von paketen - Google Patents
Einrichtung zur session-basierten vermittlung von paketenInfo
- Publication number
- EP1743462A1 EP1743462A1 EP05740082A EP05740082A EP1743462A1 EP 1743462 A1 EP1743462 A1 EP 1743462A1 EP 05740082 A EP05740082 A EP 05740082A EP 05740082 A EP05740082 A EP 05740082A EP 1743462 A1 EP1743462 A1 EP 1743462A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- session
- service
- packets
- network
- esn
- 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.)
- Ceased
Links
- 230000005540 biological transmission Effects 0.000 title description 2
- 230000002776 aggregation Effects 0.000 abstract description 9
- 238000004220 aggregation Methods 0.000 abstract description 9
- 238000013475 authorization Methods 0.000 description 5
- 230000006870 function Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 2
- 238000013468 resource allocation Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000000131 plasma-assisted desorption ionisation Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000036962 time dependent Effects 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
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
- H04L12/4641—Virtual LANs, VLANs, e.g. virtual private networks [VPN]
-
- 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
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/50—Routing or path finding of packets in data switching networks using label swapping, e.g. multi-protocol label switch [MPLS]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L2212/00—Encapsulation of packets
Definitions
- Future access networks for the broadband subscriber line must provide higher bandwidths at lower costs than is possible with the ATM-based access networks that are common today. For this reason, future networks are to be increasingly based on Ethernet technology, which is currently establishing itself on the market as an attractive solution for metro networks.
- Dynamic network access with authentication and access control • Minimal administration effort for setting up new subscribers • Good scalability • Traffic separation between individual subscriber connections • Dynamic selection of different services or service classes • Support of different access methods (e.g. PPPoE, DHCP) • Aggregation of many subscribers in Few, service-specific logical tunnels • Support for video distribution services • Support for packet-based voice services (VoIP), especially Quality of Service • Efficient transport of peer-peer applications (Kazaa, etc.)
- the subject matter of this invention is a novel aggregation solution for use in Ethernet-based broadband access networks.
- the architecture for ATM-based broadband access networks with QoS support is described, for example, in the DSL forum specifications TR-058 and TR-059. These networks are based on fixed ATM Virtual Connections (PVC) between the subscriber connection and a central IP network access node (broadband access server, BAS).
- PVC Physical Virtual Connections
- BAS central IP network access node
- the BAS takes over the access control and authentication of the participants as well as the selection of services.
- the invention defines a new network architecture for Ethernet-based access networks, which relocates the function of the BAS to the aggregation network and modifies it so that access control can be carried out using Ethernet-based methods. On the one hand, this eliminates the need for a separate BAS, which leads to significant cost savings. On the other hand, access control shifts closer to the participant, which enables better QoS support.
- FIG. 1 shows the associated network concept of an Ethernet service node (ESN).
- ESN Ethernet service node
- many DSLAMs or Ethernet edge switches (L2 switches) are connected to the ESN.
- L2 switches Ethernet edge switches
- the ESN routes traffic to various service providers, which can be network providers such as ISPs or application providers for video services or voice services.
- the ESN aggregates and controls the subscriber traffic and connects the individual subscriber sessions with the corresponding service providers. This is shown in a highly simplified manner in FIG. 2 (see Appendix 1).
- the ESN has its own logical session interface for each user or service, to which all packages of a user / service are assigned.
- a logical session interface can be defined, for example, by the combination of
- the ESN On the network side, the ESN has its own logical service interface per service or per service class (e.g. best effort and premium service), to which a session is permanently assigned. The assignment is determined either during the session establishment or later through a direct service selection (typically via a service selection server).
- per service class e.g. best effort and premium service
- a logical service interface on the network side can be defined, for example, by 1. a physical port and / or 2. a VLAN and / or 3. an MPLS path and / or 4. a special virtual network
- FIG 4 shows an example of the configuration of a simple network with ESN, two DSLAMs and three service providers.
- Each subscriber line of a DSLAM is assigned its own VLAN, which terminates in the ESN.
- the logical service ports are also connected to the service providers via VLAs. The ESN must now ensure that the data packets are correctly transported between the logical session and service ports.
- the data is transported based on the session data, with the assignment of the packets to one
- Session specific parts of the packet header must be evaluated (e.g. MAC addresses, VLAN tags, priority bits, IP ad eat, etc.).
- Figure 5 shows an example of data transport from the user to the network.
- the original MAC address and the VLAN header of received packets are evaluated in order to derive the assigned service interface (port, VLAN).
- the assignment table shown in FIG. 5 results from this.
- a major difference between the ESN and conventional Ethernet switches is that the switching of the packets is based in part on the original MAC address.
- Figure 6 shows the corresponding assignment table on a service interface.
- the destination MAC address and the VLAN header are evaluated here in order to assign the packets to a logical session port.
- a session can be ended in different ways: • Explicit termination of the session by the client (e.g. PPPoE PADT) • Expiry / termination of a DHCP address lease • If no more data is received (idle timeout) • By explicitly monitoring the client, e.g. with periodic ARP request; Closing the session if no response is received. • EAP reauthentication not successful (802. Ix)
- the ESN deactivates the logical session interface and the corresponding table entries are deleted.
- the ESN can also perform other functions:
- network access is only possible for authorized logical ports. All other logical ports are blocked and only permit authorization.
- Simplified administration Subscriber connection only needs to be set up in the access node (DSLAM, Edge Switch). Session interfaces are generated by the ESN itself.
- Simplified network planning and dimensioning Service-based engineering of the aggregation network, with a much smaller number of logical connections.
- Simpler IP network planning with fewer IP addresses by concentrating many session ports on a few service ports (eg VLANs). A separate subnet is occupied for each VLAN in the IP network.
- the main difference to the classic Ethernet switch is the transmission of packets based on the original MAC address and the implementation (translation) of the VLAN ID.
- the main difference to the classic BAS is the session control and switching through on layer 2 (MAC layer) instead of the IP layer (layer 3), as well as the assignment of the sessions to service-specific logical interfaces (tunnels).
- MAC layer MAC layer
- IP layer layer 3
- Also new is the integration of access control in the Ethernet aggregation network.
- FIG. 7 shows an example of a possible network configuration in which a subscriber is connected to the ESN via VLAN 200.
- Two service providers are available on the network side, one at port 8 / VLAN 90 and the second at port port 9 / VLAN 91.
- FIG. 8 shows the message flow when establishing a PPPoE session.
- the designation of the messages / packets corresponds to the terminology of the PPPoE definition in RFC2516.
- the session setup begins with a PPPoE discovery phase, in which a PPPoE server is selected using the PADI and PADO packages. These packets are transmitted using a PPPoE relay agent in the ESN.
- the actual session setup is carried out by the PADR package (PPPoE Active Discovery Request) and the subsequent PPPoE Active Discovery session confirmation (PADS) of the server.
- PADR package PPPoE Active Discovery Request
- PADS PPPoE Active Discovery session confirmation
- the session is also assigned a session ID, which is used in all subsequent PPPoE packages. keten is included.
- the ESN has all the information required to generate a dynamic session and to generate the assignment tables for session and service port shown in FIG. 9. When the table entries are activated, direct communication between the PPPoE client and server is enabled and the session
- SSS Service Selection Server
- EAP (RFC2284) is a general authentication protocol that supports several authentication mechanisms.
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Small-Scale Networks (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102004022552A DE102004022552A1 (de) | 2004-05-07 | 2004-05-07 | Einrichtung zur Session-basierten Vermittlung von Paketen |
| PCT/EP2005/052077 WO2005112363A1 (de) | 2004-05-07 | 2005-05-06 | Einrichtung zur session-basierten vermittlung von paketen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1743462A1 true EP1743462A1 (de) | 2007-01-17 |
Family
ID=34967264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP05740082A Ceased EP1743462A1 (de) | 2004-05-07 | 2005-05-06 | Einrichtung zur session-basierten vermittlung von paketen |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20080285569A1 (de) |
| EP (1) | EP1743462A1 (de) |
| JP (1) | JP2007536851A (de) |
| CN (1) | CN1951071A (de) |
| DE (1) | DE102004022552A1 (de) |
| RU (1) | RU2006143203A (de) |
| WO (1) | WO2005112363A1 (de) |
Families Citing this family (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7606232B1 (en) | 2005-11-09 | 2009-10-20 | Juniper Networks, Inc. | Dynamic virtual local area network (VLAN) interface configuration |
| US7861003B2 (en) * | 2006-01-31 | 2010-12-28 | Genband Us Llc | Adaptive feedback for session over internet protocol |
| US7865612B2 (en) * | 2006-01-31 | 2011-01-04 | Genband Us Llc | Method and apparatus for partitioning resources within a session-over-internet-protocol (SoIP) session controller |
| US7860990B2 (en) * | 2006-01-31 | 2010-12-28 | Genband Us Llc | Session data records and related alarming within a session over internet protocol (SOIP) network |
| US7808994B1 (en) | 2006-02-22 | 2010-10-05 | Juniper Networks, Inc. | Forwarding traffic to VLAN interfaces built based on subscriber information strings |
| US7492766B2 (en) * | 2006-02-22 | 2009-02-17 | Juniper Networks, Inc. | Dynamic building of VLAN interfaces based on subscriber information strings |
| CN100579063C (zh) * | 2006-05-29 | 2010-01-06 | 华为技术有限公司 | 多业务接入网的控制系统及控制方法 |
| EP1973270B1 (de) * | 2007-03-22 | 2018-01-03 | PacketFront Software Solutions AB | Breitbanddienstleistung |
| JP2008244750A (ja) * | 2007-03-27 | 2008-10-09 | Nec Corp | Sip通信システム、呼制御サーバ、およびsip通信方法 |
| US20080285577A1 (en) * | 2007-05-15 | 2008-11-20 | Yehuda Zisapel | Systems and Methods for Providing Network-Wide, Traffic-Aware Dynamic Acceleration and Admission Control for Peer-to-Peer Based Services |
| DE602007006447D1 (de) * | 2007-05-29 | 2010-06-24 | Packetfront Systems Ab | Verfahren zum Verbinden von VLAN-Systemen an andere Netze über einen Router |
| EP2023545B1 (de) * | 2007-08-08 | 2009-10-28 | PacketFront Systems AB | VLAN-Datenrahmen und -übertragung |
| US7912062B2 (en) * | 2007-09-28 | 2011-03-22 | Genband Us Llc | Methods and apparatus for managing addresses related to virtual partitions of a session exchange device |
| JP5183142B2 (ja) | 2007-10-03 | 2013-04-17 | キヤノン株式会社 | ビナフチル化合物及びこれを用いた有機発光素子 |
| EP2048848B1 (de) * | 2007-10-12 | 2013-12-18 | PacketFront Network Products AB | Optische Datenkommunikation |
| ATE464733T1 (de) * | 2007-10-12 | 2010-04-15 | Packetfront Systems Ab | Konfiguration von routern für dhcp-dienstanfragen |
| US7921212B2 (en) * | 2008-10-14 | 2011-04-05 | At&T Intellectual Property I, L.P. | Methods and apparatus to allocate bandwidth between video and non-video services in access networks |
| US9100497B2 (en) * | 2012-04-05 | 2015-08-04 | Blackberry Limited | Method, system and apparatus for managing persona-based notifications at a communication device |
| EP2987307B1 (de) * | 2013-04-17 | 2019-01-02 | Intel Corporation | Verfahren zur verwendung einer wfds-anwendungsdienstplattform für schicht-2-dienste |
| CN111262770B (zh) * | 2018-12-03 | 2022-05-20 | 迈普通信技术股份有限公司 | 一种通信方法及通信系统 |
| CN114157708B (zh) * | 2020-09-08 | 2024-05-10 | 中国电信股份有限公司 | 会话迁移的控制方法、装置和vBRAS |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6771673B1 (en) * | 2000-08-31 | 2004-08-03 | Verizon Communications Inc. | Methods and apparatus and data structures for providing access to an edge router of a network |
| JP3868815B2 (ja) * | 2002-01-10 | 2007-01-17 | 富士通株式会社 | 通信システム |
| EP1540893B1 (de) * | 2002-09-09 | 2007-12-19 | Nortel Networks Limited | Netzwerk und Verfahren zur Bereitstellung von Schicht-2 virtuellen privaten Netwerken auf Basis von vermittelten virtuellen Verbindungen |
-
2004
- 2004-05-07 DE DE102004022552A patent/DE102004022552A1/de not_active Withdrawn
-
2005
- 2005-05-06 EP EP05740082A patent/EP1743462A1/de not_active Ceased
- 2005-05-06 CN CNA2005800145921A patent/CN1951071A/zh active Pending
- 2005-05-06 WO PCT/EP2005/052077 patent/WO2005112363A1/de not_active Ceased
- 2005-05-06 JP JP2007512203A patent/JP2007536851A/ja not_active Withdrawn
- 2005-05-06 US US11/579,709 patent/US20080285569A1/en not_active Abandoned
- 2005-05-06 RU RU2006143203/09A patent/RU2006143203A/ru not_active Application Discontinuation
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2005112363A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2005112363A1 (de) | 2005-11-24 |
| DE102004022552A1 (de) | 2006-03-02 |
| JP2007536851A (ja) | 2007-12-13 |
| RU2006143203A (ru) | 2008-06-20 |
| US20080285569A1 (en) | 2008-11-20 |
| CN1951071A (zh) | 2007-04-18 |
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Legal Events
| Date | Code | Title | Description |
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| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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| 17P | Request for examination filed |
Effective date: 20060905 |
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| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE ES GB IT |
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| DAX | Request for extension of the european patent (deleted) | ||
| RBV | Designated contracting states (corrected) |
Designated state(s): DE ES GB IT |
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| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: NOKIA SIEMENS NETWORKS GMBH & CO. KG |
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| RAP3 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: NOKIA SIEMENS NETWORKS S.P.A. |
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| RAP3 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: NOKIA SIEMENS NETWORKS GMBH & CO. KG |
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| 17Q | First examination report despatched |
Effective date: 20071120 |
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| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED |
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| 18R | Application refused |
Effective date: 20090102 |