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Deploying 100G WDM Network for CERNET Xing Li 2013-09-09

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Deploying 100G WDM Network for CERNET

Xing Li2013-09-09

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Outline

• Demand• Technology and standard• The project• 100G DWDM • 100G IP• Operation• New Trends• Future Internet

3

Demand

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Technology and standard

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CERNET 211-3 project

• Originally planed in 2007– 40x10G DWDM– 2.5G (via TMUX) – 10G IP

• Funding is available in 2010– 40x100G & 40x10G DWDM– 100G & 10G IP

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CERNET 100G DWDM

• 100G & 10G • 10G

• G.652• G.655 (some sections)

7

DWDM topology

Huawei Optix OSN 8800 (11,438 km)

ZTE ZXONE 8300 (10,370 km) Total 21,724 km

北京

郑州

武汉 合肥

上海

杭州

广州

成都

沈阳

天津

福州

重庆

济南

厦门

大连

长春 哈尔滨

长沙

南京

兰州西安

太原

深圳

石家庄

南宁

南昌

桂林

西宁

银川

呼和浩特

青岛

昆明

贵阳

海口

8

DWDM design considerations

• 100G transport network– Point-to-point link– No OTN cross-connects

• 100G & 10G mixed system– Conservative considerations

• Not sure 100G is stable at the design time

– Economical considerations• 100G TMUX multiple 10Gs• Or mixed 100G/10G

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DWDM testing considerations• Worst case

– Span variation• Configuration

– 5x100G + 10x10G + 10G TMUX• Device testing

– OUT line (4x25GHz)– OUT router (4x25GHz)

• System testing– Optical channel– Budget– Stableness– RFC2544 (Throughput, Lost Rate, Latency, Back-to-Back)

• Management

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DWDM deployment considerations

• 10G is sensitive to dispersion• 100G is sensitive to attenuation

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DWDM stations

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IP topology

北京

西安

武汉

合肥 上海

南昌 杭州

广州

成都

沈阳

南宁

福州

重庆

济南

厦门

大连长春

长沙

南京

兰州

太原

西宁

呼和浩特

桂林

海口

青岛

银川

昆明

贵阳

乌鲁木齐

拉萨

深圳

哈尔滨

天津

100G

OSPFiBGP (RR)PIM-SM

Juniper T4000Cisco CRS-3

13

IP testing considerations• Features

– Full routing table– IPv4/IPv6– ACL– Traffic engineering– uRPF– L2/L3 VPN (MPLS)– Multicast

• Results – Line speed when packet size > 128 byte– No interoperation issues– Some packet delay issue

14

IP routers (1)

Juniper T4000

15Cisco CRS-3

IP routers (2)

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IP traffic (1)

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IP traffic (2)

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New trends

• Silicon photonics• ROADM• 400G• FlexGrid• SDN

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Compass EOS (The chip-to-chip direct silicon-to-photonics solution ) for testing

Silicon photonics (1)

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Silicon photonics (2)

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ROADM

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400G

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Flexgrid

Distance Throughput

2PSK4QAM16QAM

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SDN

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Next step – more 100G Pops

天津

合肥

郑州

长沙

重庆

深圳 厦门厦门

杭州

济南

兰州

长春 哈尔滨

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Next steps

• 100G/40G for IDC• 400G trial• OTN • SDN

Future Network Testbed

100G CERNETIPv4

100G CERNET2IPv6

100G FITICN/SDN/?