차세대 인터넷을 위한 네트워킹 기술
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차세대 인터넷을 위한 네트워킹 기술. 1999. 2. 5. 강현국 [email protected] 고려대학교 전자정보공학부. 차례. 1. 차세대 인터넷 2. 트랜스포트 계층에서의 기술 3. IP Multicast Routing 4. IP QoS 5. 스위칭기술 6. IP over Transmission Systems 7. 인터넷과 ATM 활용 기술 8. 맺음말. 1. 차세대 인터넷 발전 방향. 고속의 전송속도 유무선 통합 이동성 보편성 QoS 보안성.

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차세대 인터넷을 위한 네트워킹 기술

1999. 2. 5.

강현국

[email protected]

고려대학교 전자정보공학부


차례

1. 차세대 인터넷

2. 트랜스포트 계층에서의 기술

3. IP Multicast Routing

4. IP QoS

5. 스위칭기술

6. IP over Transmission Systems

7. 인터넷과 ATM 활용 기술

8. 맺음말


1. 차세대 인터넷 발전 방향

  • 고속의 전송속도

  • 유무선 통합

  • 이동성

  • 보편성

  • QoS

  • 보안성



2. 트랜스포트 계층에서의 기술

  • 현재의 TCP/UDP 문제점 –unicast/reliable

    • Transactions

    • Fast failover to other server

    • FC & EC without performance degradation

    • Three-way handshaking

    • Security

  • Suggestion

    • Unlikely to get a single new transport

    • Light-weight protocol

    • ECTP

  • 관련기관 : ITU-T, ISO/IEC JTC1 SC6, IETF


3 ip multicast routing
3. IP Multicast Routing

  • 관련기술

    • Host Extension for IP Multicast(RFC1112)

    • DVMRP(RFC 1075)

    • CBT

    • PIM-SM

    • PIM-DM

    • BGP4+

  • 관련기관

    • IETF, IPMI, CCIRN


4 ip qos
4. IP QoS

  • 관련기술

    • RSVP

    • DiffServ

    • Qbone

  • RSVP와 DiffServ 통합구조

  • 관련기관 : IETF, Internet2


5 switching
5. Switching 관련 기술

  • 관련기술

    • Gigabit Router

      • switching fabric, network processor, forwarding engine

      • MGR(BBN), GFR(Ascend)

    • IP switching

      • ATM switch, IP switch controller, IFMP, GSMP

      • Ipsilon

    • Tag switching

      • Label swapping

      • tag edge router, tag switch, tag distribution protocol

      • Cisco

    • MPLS

      • Cell switched router, LSR, FEC

      • ARIS(IBM), SITA

      • ITU-T, Toshiba

  • 관련기관 : IETF, ITU-T


6 ip over transmission systems
6. IP over Transmission Systems


6 1 atm
6-1. 인터넷과 ATM 활용 기술

  • 인터넷기술과 ATM 기술의 축적

  • DiffServ(RSVP)와 ATM의 시그널링이 유사

- Admission Control

- Traffic Classification

- Flow Control

- Traffic Shaping

. Per Flow Queuing

. Weighted Fair Queuing

ATM

기술과

유사

DiffServ

IntServ

안정화 단계가 되기

위해서는 2-3년 소요


7 atm
7. 인터넷과 ATM 활용 기술





Ipatm
ipatm 참조 모델


7 4 ip over atm overlay model
7-4. IP over ATM -overlay model


7 5 ip over atm clns
7-5. IP over ATM - CLNS

  • Core Protocol

    • To support IP over ATM in the B-ISDN

    • To enhance CL data transfer service on existing ATM

  • Core Network


7 5 core protocol
7-5 Core Protocol 고려사항

  • Forwarding Table Lookup

    • IP : longest matching algorithm

    • MPLS, Core : fixed length label

  • Address Resolution

    • IPOA, MPOA : NHRP

    • Core : Default Forwarder

  • Network Management

    • IP, MPLS : Autonomous function

    • Core : OS Approach

  • IP Logical Network

    • IP : Management + Forwarding

    • Core : Management / Forwarding


7 6 core protocol stack
7-6. Core Protocol Stack


7 7 core protocol stacks ccmp
7-7. Core Protocol Stacks - CCMP


7 8 mechanism of the redirection method
7-8. Mechanism of the Redirection Method


7 9 sequence of the redirection method
7-9. Sequence of the Redirection Method


7 10 an example configuration of sub as
7-10. An example configuration of Sub-AS


7 11 an example of differentiating classes
7-11. An Example of Differentiating Classes


7 12 an example of multicasting transfer scheme
7-12. An example of Multicasting Transfer Scheme


7 13 an example of the interior routing protocol internetworking
7-13. An example of the Interior Routing Protocol Internetworking


7 14 reference points in core network
7-14. Reference points in Core Network


7 15 protocol stack 1
7-15. Protocol Stack(1)

IP routing service(the Ethernet interface subscribers)

Transmitting IP-PDUs via DF


7 15 protocol stack 2
7-15. Protocol Stack(2)

When the routing protocol is transmitted to RS/MCRS

A 2-hop CLS relay


7 16 clp prio mapping at an en
7-16. CLP Prio. Mapping at an EN


7 17 protocol stacks
7-17. Protocol stacks

in the user protocol

in an internal protocol(CCMP)


7 18 support of ip multicasting
7-18. Support of IP Multicasting



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