AARNet Updateplus the Taiwan Earthquake

Winter 2007 Joint Techs Minneapolis

Copyright 2007, AARNet2

What’s happened since Jan 06?

• Seems a slow news year after the previous few but …

• AARNet3 backbone completed• Optical network in place• AARNet3 network running on our

own optical network• TEIN2 links complete• Link to Frankfurt (might be up)• Extension to AMS-IX and LINX

Copyright 2007, AARNet3

Current AARNet3 Footprint

Copyright 2007, AARNet4

Optical Network

Copyright 2007, AARNet5

Optical Network

• Focus on permanent circuits– Connection to the AARNet3 backbone– Inter campus links

• NOC out sourced to Cisco/SOUL• Will interconnect to SXTransPORT

– Providing light paths from Los Angeles to anywhere on the optical network

– Issues to be resolved with configuration management and control

Copyright 2007, AARNet6

Peering in AARNet

• AARNet has > 200 peers• 66% of AARNet’s international

commodity traffic is received via peering

• 50% of AARNet’s domestic commodity traffic is received via peering

• Currently only doing IP peering– Might do VoIP eventually

• See entry at <www.peeringdb.com>

Copyright 2007, AARNet7

Taiwan Earthquake• December 28, 2006• Major impact on connectivity within

the region• At least 7 cable systems severed

– China/US– SEA-ME-WE3– Flag/RNAL– EAC– C2C– APCN– APCN2

Copyright 2007, AARNet8

Why all this traffic in Singapore …

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What happened to China Telecom?

Copyright 2007, AARNet10

TanshuiPali

Fangshan

Shanghai

Shantou

Philippines

Miyazaki

APCN-2

S6

S7

S4

S3

S2 S8

SMW3

Okinawa

Macau

China-US

N3

S1

N2

W3

N1

W1

W2

N4

N5N9

N6

N7

N8

S2

S3

S4

S5

FNAL/RNAL

Flag

Philippines

B3

B5

B2

B8

B1

B4

B17

B6

B7

B9

APCN

Toucheng

Copyright 2007, AARNet11

Lessons Learned• Many cables hit by single event so vendor

diversity didn’t help• Sometimes focus on RTT and cost is bad• Need geographic diversity• Working as a “club” can improve diversity if

someone buys the “strange” or expensive path

• But Internet soon discovered the alternative paths– What you think is a backup path may not be the

one used in practice– China to Japan via Chicago!

Copyright 2007, AARNet12

Further Reading

• A couple of presentations from last week’s NANOG in Toronto

• http://www.nanog.org/mtg-0702/laperriere.html• http://www.nanog.org/mtg-0702/underwood.html

• Expect more at APRICOT later in the month

• http://www.apricot2007.net/

Copyright 2007, AARNet13

Thanks

• Thanks for some slideware from the APAN meeting in Manila– Francis Lee of SingAREN– Yu-lin Chang of Asnet, Taiwan