MPLS-Japan_Esaki_2001.PDF

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ときなえいさか
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2 (IETF/ITU/OIF) 3 ( ) 4 2

3 Where the Internet Goes? Internet for Everything Everything over IP IP Internet for Everyone Everyone with IP IP Internet Everywhere/Anytime/Anyhow Everywhere and Anyhow to to IP IP IP is for Everyone Quantitative Scalability until Massive Scalability Qualitative Scalability Heterogeneity (e.g., Bandwidth, QoS/CoS, Media, etc.,) 5 Source: http// ops/bgptable.html But they cannot be relied on forever Projected routing table growth without CID/NAT Moore s Law and NATs make routing work today Deployment Period of CID 6 3

4 8 4

5 5 9 10

6 6 11 ( 12

7 (1) Qwest ( US West) 13 (2) 14 7

8 (3) 15 Fiber, Fiber Everywhere 16 8

9 17 Optical Networking at Double Moore s Law Moore s Law says that computer speed=2x every 18 months, and the cost = 50% John oth, president and chief executive officer, says that Nortel Networks is moving at twice the speed of Moore's Law, doubling the capacity of its fiber-optic systems and halving the cost every nine months. Networks: 3 years=16x capacity, 6% cost Computers: 3 years=4x speed, 25% cost Networks: 6 years=256x capacity, >1/2% cost Computers: 6 years=16x speed, 6% cost Source: HPCwire hpcwire@tgc.com> 18 9

10 1. Optical i. ii. WDM( ) 2. i. ii. IX 3. Dark Fiber i. 0 ii. IP Optical i. ii. WDM( ) 2. i. ii. IX 3. Dark Fiber i. 0 ii. IP 20 10

12 by IIJ 64Kbps Mbps 5 10Mbps Mbps

14 on Contents IX Internet IX idc idc 28 14

15 IX IX IX IX DC IX 1 1 IX IX DC (NxN) N x N IX IX DC 29 IX idc idc IX PN DC PN DC From VS From / IX DC IX DC PN DC!! 30 15

16 16 31 FDDI/Etherenet IX IX co-lo space FDDI/ Ethernet switch co-located IX architecture -office -office -office -router -router -router Fddi/Ether Fddi/Ether Fddi/Ether Fddi/Ether Fddi/Ether Fddi/Ether -office -office -office -router -router -router PrivatePeering 32 IX ASP CSP xsp LS IDC LS IDC LS Peering Peering MP S Peering Peering MP S

17 MP S Implementation Example Control Plane Control Software Control Plane Control Processor Data Plane Lambda Switch Matrix Data Plane 33 LSP for Engineering Purpose - CoS/QoS related multiple LSPes - PATH1 2 1 Multiple Virtual Links by LSPes - QoS LSP using SVP PATH

18 35 vs << >> << >> ( ) Connectivity is own reward (End-to-End) & :-) 18

19 37 History of MPLS Activity 1994 March 1995 April 1996 March July Nov. Dec March : CS Internet-Draft to IETF (by Toshiba), as well as ATM Forum : CS BOF at IETF (by Toshiba and Tokyo Institute of Technology) : IP Switch by Ipsilon : Tag Switch by Cisco : Collaboration Cisco and Toshiba : Tag Switch BoF at IETF : MPLS WG for LS at IETF (*) CS; Cell Switch outer 38 19

20 application application application application TCP ICMP IGMP UDP Port number (16 bits) AP IP Ethernet driver AP Protocol value in IP header (16 bits) Frame type (e.g., LLC/SNAP) Incoming/outgoing frame 39 < Layer > Application TCP IP < Address > < Semantics > UL A. Global logical service address (e.g., of node in the Internet Port number (e.g.,8080) B. End-to-end identifier for application multiplexing IP address (e.g., ) C. Global node identifier in the Internet (identifier and routing) DataLink MAC address / VC-ID (e.g., ) D. Link unique identifier for datagram transmission in local segment (e.g., Ethernet) 40 20

21 < Layer > Application TCP IP < Address > < Semantics > UL A. Global logical service address (e.g., of node in the Internet Port number (e.g.,8080) B. End-to-end identifier for application multiplexing IP address (e.g., ) C. Global node identifier in the Internet (identifier and routing) LS Label for FEC E. Link unique identifier for DataLink MAC address / VC-ID (e.g., ) label switching D. Link unique identifier for datagram transmission in local segment (e.g., Ethernet) Introduce of another (i) forwarding label and (ii) multiplexing label 41 History of MPLS Activity << Telephone >> << IP (Internet) >> PDH SDH/SONET ATM LANE, MPOA CS, IP Switch Optical Integration of ATM and IP Tag Switch, MPLS Multi-Link New Functions MP S for New Internet Architecture 42 21

22 1. Diff-Serv / Int-Serv 2. High Speed Large Capacity IP outer 3. VPN (Virtual Private Network) 4. Traffic Engineering MPLS tried to solve No.2 Objective, at the beginning MPLS tried to solve No.3 & No.4 MPLS integrate Diff-Serv / Int-Serv MPLS uses for layer 1/2/3 43 High Speed Large Capacity IP outer Integrate ATM and IP Use ATM s QoS/CoS Functions for IP Integrate ATM and IP over ATM Extended Motivations Multi-Link Extension (IP over Everything) VPN Extension Traffic Engineering for IP Operation L2 & L3 LSP MPLS with Optical Wave 44 22

23 MPLS

24 MPLS is going into the commercial operation By Operators for Operators and Venders ealize What MPLS can How manage and operate the MPLS 47 24

PowerPoint プレゼンテーション

PowerPoint プレゼンテーション / 7 OSI7 Application protocol 6 Presentation protocol 5 Session protocol 4 Transport protocol 3 2 1 : Network Layer Host-Router Protocol (e.g., ES-IS),,: (e.g., IS-IS,NNI,) : Data link Layer Host-Router