WO2005112363A1 - Einrichtung zur session-basierten vermittlung von paketen - Google Patents
Einrichtung zur session-basierten vermittlung von paketen Download PDFInfo
- Publication number
- WO2005112363A1 WO2005112363A1 PCT/EP2005/052077 EP2005052077W WO2005112363A1 WO 2005112363 A1 WO2005112363 A1 WO 2005112363A1 EP 2005052077 W EP2005052077 W EP 2005052077W WO 2005112363 A1 WO2005112363 A1 WO 2005112363A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- session
- service
- packets
- network
- esn
- Prior art date
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
- H04L12/4641—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.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007512203A JP2007536851A (ja) | 2004-05-07 | 2005-05-06 | セッションベースのパケット交換装置 |
US11/579,709 US20080285569A1 (en) | 2004-05-07 | 2005-05-06 | Device for Session-Based Packet Switching |
EP05740082A EP1743462A1 (de) | 2004-05-07 | 2005-05-06 | Einrichtung zur session-basierten vermittlung von paketen |
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 |
DE102004022552.4 | 2004-05-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005112363A1 true WO2005112363A1 (de) | 2005-11-24 |
Family
ID=34967264
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2005/052077 WO2005112363A1 (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) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007228548A (ja) * | 2006-02-22 | 2007-09-06 | Juniper Networks Inc | 加入者情報ストリングに基づいたvlanインターフェイスの動的な構築 |
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 |
EP2023538A1 (de) * | 2006-05-29 | 2009-02-11 | Huawei Technologies Co., Ltd. | Steuerverfahren und system eines mehrverkehrs-zugangsnetzes |
US7606232B1 (en) | 2005-11-09 | 2009-10-20 | Juniper Networks, Inc. | Dynamic virtual local area network (VLAN) interface configuration |
US7808994B1 (en) | 2006-02-22 | 2010-10-05 | Juniper Networks, Inc. | Forwarding traffic to VLAN interfaces built based on subscriber information strings |
US8841004B2 (en) | 2007-10-03 | 2014-09-23 | Canon Kabushiki Kaisha | Binaphthyl compound and organic light emitting element using the same |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
US7861003B2 (en) * | 2006-01-31 | 2010-12-28 | Genband Us Llc | Adaptive feedback for session over internet protocol |
EP1973270B1 (de) * | 2007-03-22 | 2018-01-03 | PacketFront Software Solutions AB | Breitbanddienstleistung |
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 |
EP1998505B1 (de) * | 2007-05-29 | 2010-05-12 | PacketFront Systems AB | Verfahren zum Verbinden von VLAN-Systemen an andere Netze über einen Router |
DE602007003015D1 (de) * | 2007-08-08 | 2009-12-10 | 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 |
EP2048858B1 (de) * | 2007-10-12 | 2010-04-14 | PacketFront Systems AB | Konfiguration von Routern für DHCP-Dienstanfragen |
EP2048848B1 (de) * | 2007-10-12 | 2013-12-18 | PacketFront Network Products AB | Optische Datenkommunikation |
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 |
CN110035421B (zh) * | 2013-04-17 | 2022-06-21 | 英特尔公司 | 层2服务的wi-fi直连服务应用服务平台 |
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 |
CN114157708A (zh) * | 2020-09-08 | 2022-03-08 | 中国电信股份有限公司 | 会话迁移的控制方法、装置和vBRAS |
Citations (2)
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US20030131131A1 (en) * | 2002-01-10 | 2003-07-10 | Hiroshi Yamada | Communications system |
US20040049542A1 (en) * | 2002-09-09 | 2004-03-11 | Hamid Ould-Brahim | SVC-L2 VPNs: flexible on demand switched MPLS/IP layer-2 VPNs for ethernet SVC, ATM and frame relay |
Family Cites Families (1)
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 |
-
2004
- 2004-05-07 DE DE102004022552A patent/DE102004022552A1/de not_active Withdrawn
-
2005
- 2005-05-06 CN CNA2005800145921A patent/CN1951071A/zh active Pending
- 2005-05-06 WO PCT/EP2005/052077 patent/WO2005112363A1/de active Application Filing
- 2005-05-06 EP EP05740082A patent/EP1743462A1/de not_active Ceased
- 2005-05-06 RU RU2006143203/09A patent/RU2006143203A/ru not_active Application Discontinuation
- 2005-05-06 JP JP2007512203A patent/JP2007536851A/ja not_active Withdrawn
- 2005-05-06 US US11/579,709 patent/US20080285569A1/en not_active Abandoned
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US20030131131A1 (en) * | 2002-01-10 | 2003-07-10 | Hiroshi Yamada | Communications system |
US20040049542A1 (en) * | 2002-09-09 | 2004-03-11 | Hamid Ould-Brahim | SVC-L2 VPNs: flexible on demand switched MPLS/IP layer-2 VPNs for ethernet SVC, ATM and frame relay |
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Cited By (9)
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 |
US7983258B1 (en) | 2005-11-09 | 2011-07-19 | Juniper Networks, Inc. | Dynamic virtual local area network (VLAN) interface configuration |
JP2007228548A (ja) * | 2006-02-22 | 2007-09-06 | Juniper Networks Inc | 加入者情報ストリングに基づいたvlanインターフェイスの動的な構築 |
JP4537357B2 (ja) * | 2006-02-22 | 2010-09-01 | ジュニパー ネットワークス,インコーポレイティド | 加入者情報ストリングに基づいたvlanインターフェイスの動的な構築 |
US7808994B1 (en) | 2006-02-22 | 2010-10-05 | Juniper Networks, Inc. | Forwarding traffic to VLAN interfaces built based on subscriber information strings |
EP2023538A1 (de) * | 2006-05-29 | 2009-02-11 | Huawei Technologies Co., Ltd. | Steuerverfahren und system eines mehrverkehrs-zugangsnetzes |
EP2023538A4 (de) * | 2006-05-29 | 2009-05-27 | Huawei Tech Co Ltd | Steuerverfahren und system eines mehrverkehrs-zugangsnetzes |
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 |
US8841004B2 (en) | 2007-10-03 | 2014-09-23 | Canon Kabushiki Kaisha | Binaphthyl compound and organic light emitting element using the same |
Also Published As
Publication number | Publication date |
---|---|
DE102004022552A1 (de) | 2006-03-02 |
CN1951071A (zh) | 2007-04-18 |
EP1743462A1 (de) | 2007-01-17 |
RU2006143203A (ru) | 2008-06-20 |
US20080285569A1 (en) | 2008-11-20 |
JP2007536851A (ja) | 2007-12-13 |
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