CERNET Optical Network Trial. Xing Li

Transcription

1 CERNET Optical Network Trial Xing Li

2 Outline Layer 1 CERNET Lambda 40G test Layer 2 Ethernet over MPLS DragonLight Layer 3 CERNET CERNET2 Challenge of BGP routing Comments and Summary

3 Layer 1

4 CERNET Dark Fiber Layout

5 CERNET Transport Network 大连北京郑州石家庄武汉合肥南京上海长沙南昌杭州广州福州成都昆明重庆厦门海口桂林沈阳哈尔滨天津济南南宁深圳太原青岛

6 CERNET Transport Network Terminal Stations

7 CERNET Lambda Phase 2 Upgrading to ELH (40x10G+) 大连北京郑州石家庄武汉合肥南京上海长沙南昌杭州广州福州成都昆明重庆厦门海口桂林沈阳哈尔滨天津济南南宁深圳太原青岛

8 10x40G DWDM

9 40Gb/s Market Drivers OC-768 clients (from next-gen IP routers) now available on the market 40Gb/s cost structure now competitive 40Gb/s retrofit offers the opportunity for increased revenue from installed footprint (4x capacity increase) Increased 40Gb/s trial and bid activity amongst carriers Proving 40Gb/s support before DWDM contract awards becoming more common

10 40Gb/s Retrofit on Installed 10Gb/s DWDM Lightwave modulation enabling technologies: 43 Gb/s transmission on ITU-T 50GHz channel grid 4x capacity increase on existing 10Gb/s system 300ps/nm chromatic dispersion tolerance Full band tunable laser and broadband receiver Existing 10G/s System T T T T 50 or 100 GHz T T T T OTS Existing 10 Gb/s channels Added 40 Gb/s channels OTS-4000

11 Compatibility of Modulation Formats with 50GHz Filters 40G NRZ, RZ and CS-RZ too broad spectra for 50GHz filters 10G NRZ and 40G StrataLight spectra fits within 50GHz Ralative Optical Power (db) G RZ 40G CS-RZ 10G NRZ 50 GHz Interleaver G StrataLight 40G NRZ Relative Frequency (GHz)

12 Higher Speed PMD compensation PMD WDM/ETDM+OTDM L+,S,S+ S+ Dispersion management 40G L band WDM OTDM Non-linear WDM Dispersion compensation 10G EDFA Dispersion <2.5G Attenuation

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16 Trial-2: BJ-TJ 10G Beijing Agilent 86142B TianJing OC256 Tester OC-256 FangZh YangC 38km 82.6km 65.5km Cisco MI 4010S Lucent 80G Lucent 80G Lucent 80G Lucent 80G MI 4010S Cisco M Router O&M VPN Router 1. DCM? Where? 2. TJ side, MI4010S in Lanxin and in the University.

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20 40Gbps Test 43GbpsCSRZ eye and spectrun

21 Trial-3: BJ-TJ 40G TianJing Beijing Agilent 86142B OC256 Tester OC-768 FangZh 82.6km 38km CRS-1 MI 4040S Lucent 80G YangC Lucent 80G 65.5km Lucent 80G 1. DCM? Yes. Only in receive side. Loopback Lucent 80G

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23 40Gb/s Marketing Timelines Cisco CRS-1 40Gb/s IP router Product launch 40Gb/s IP over DWDM field trials 2004 Technology Evaluation/Trial Phase 40Gb/s ULH field trial Certification and First Office Application Phase Large scale Deployment Phase

24 Layer 2

25 Ethernet over MPLS Solution GE CERNET MPLS GE

26 Current DragonLight Configuration 2.5G-10G CERNET APAN CERNET2 HARNET Switch Switch CNGI-6IX TANET NSFCNET DragonLight-HK DragonLight-BJ Now: Layer 2 service via Ethernet over MPLS Future: Layer2 service over lambda etc

27 DragonLight Structure Abilene HARNET STARLIGHT ASNET APAN KERON CERNET2 CERNET2 CERNET2 CERNET2 CNGI-6IX DragonLight- HK 10G 2.5G DragonTap TEIN2 JANET CSTNET CERNET GEANT

28 Layer 3

29 Layer 3 Networks IPv4 IPv6

30 Challenges of BGP Routing AS4538 AS9270 AS7660

31 Example TEIN2 Routing Considerations

32 Example The Real World Routing

33 Comments

34 Definition What is the meaning of lambda networking? Dark fiber Layer 1 interface Layer 2 interface High speed

35 Speed Record in Layer 3

36 Vision

37 Abilene/NLR, GEant2

38 Bandwidth and Applications

39 UCLP Architecture

40 Optical Packet Switching nms Routing & forwarding Optical tag reding/dele ting in Switching fabric Optical tag writing out S h a r e d storage Service in inf Optical packet transmit Optical packet receive inf Service out

41 Summary

42 Internet Architecture Putting on weight An accident(nat&alg). Mid Life crisis IP over IP Tunnel

43 Overlay

44 Layered Structure Layer 7 URI addressing Layer 3 IPv4 IPv6 Layer 2.5 MPLS Layer 2 Ethernet switch Layer 1 TDM 10GE/Multiple GE over 10G SDH Layer 0 Optical switch

45 Overlay Structure Layer 1 VPN GVPN GMPLS GVPXC Layer 2 VPN Ethernet over MPLS (AtoM) Ethernet over IP (L2tpv3) VPLS-BGP VPLS-LDP Layer 3 VPN IPv6 over IPv4 IPv4 over IPv6 GRE MPLS VRF VPN Security IPSec

46 DragonLight Architecture Layer 3 - IPv4 DragonTap 10GE and GE Ethernet interface 37 cities (DragonLight-BJ, HK, etc) Layer 3 - IPv6 CNGI-6IX 10GE and GE Ethernet interface 21 cities (DragonLight-BJ, HK, etc) NIC Layer 2 DragonLight 10GE and GE Ethernet interface 23 cities (DragonLight-BJ, XA, CD, GZ, WH, NJ, SH, SY, HK, tjn, lzh, chq, chs, zhz, hef, jnn, hzh, xmn, fzh, dln, chc, hrb, sjz) NOC Layer 1 CERNET Lambda 2.5G, 10G, 40G SDH interface 5 cities (DragonLight-BJ, SH, GZ, WH, NJ, HK)

47 Network Architecture MAN BACKBONE Lambda 1 public Internet 10G (40G) L3 Lambda 2 public Internet 10G (40G) Internet Lambda i public Internet 10G (40G) Lambda k VPN 10G (40G) {L1, L2, UCLP, etc.} L2 VPN 1 VPN 2 Lambda k+1 VPN M VPN M+1 10G (40G) VPN IP VPN N IP VPN N+1 Lambda k+n IP VPN Q IP VPN Q+1 10G (40G)

48 User Interface/subnets Layer 2 GE, 10GE Layer 3 IPv4 (IPv6) Over Layer 0 optical cross connects Layer 1 TDM Ethernet over SDH framing Layer 2 Ethernet Layer 3 VPN Remarks

49 Summary CERNET are providing lambda services Layer 1 2.5G - 10G (40G in the near future) SDH service in 5 cities Layer 2 1G - 10G Ethernet service in 23 cities Layer 3 1G Ethernet interface IPv4 in 37 cities IPv6 in 21 cities High performance applications are being developed Grid, HDV, VR Study the possibility for the UCLP service Study optical packet switching