NZNOG 2010 – Day 2 – Session 1

Lightning Talk

  • Geoff Huston – Stateless TCP and DNS
  • TCp limitations – Rough a high load
  • UDP Limitations – Requires IP fragmentation
  • Problems when response bigger than MTU , Fragments of UDP IPv6 often dropped. Switching to TCP drives up load again
  • Simulate UDP with TCP – do minimal crappy respose to fill headers
  • Ignore options, server doesn’t retransmit, ignore anything else from client, just closes connection
  • No reliability, No Flow Control, bad Idea but seems to work
  • Olof Kasselstrant – IXOR
  • Small IX in Malmo and Copenhagen (2nd site being looked at)
  • DIX only IX in Denmark
  • Sponsors for Fibre and Equipment
  • Exchange in 2 countries. Does it affect “must peer in 4 countries” agreement.
  • Dream to be in 4 sites soon
  • CCIP – Barry Brailey
  • Getting out of rewriting Microsoft patch notices
  • “investigation and analysis” function being dropped
  • Infomation and Alerting – website , newsletter, alerts – alerts targetted and highish threshold –
  • Outreach and partnering – main function – lease with overseas certs – talk to various groups – Education: presentation, newsletters, exercises (CyberStorm III – volenteers )
  • Security Information exchanges – Various groups – traffic light protocol – Looking at some new forums – Maybe ISP SIE
  • Cloud Computing for Service Providers – Richard Wade
  • As a service provider – should I care?
  • Infrastructure Foundation (Cisco, EMC, HP)
  • Infrastructure as a service (Amazon , Sun , Savvis )
  • Platform as a swervice (Amazon, MS Azure )
  • Software as a Service ( Salesforce, Google apps)
  • Integrate mngt ( network, servers, hypervisor, storage ) – unified fabric
  • Why and Why Should I care
  • Customer Ads – Eliminate Capex – Reduce Opex – IT as a utility
  • Customer Probs – No LAN apps (overseas often) – WAN now biz critical – Operational relationship with overseas provider – Legal jurisdiction of data
  • Service Provider ads – Understand managed services – Existing datacentres and infrastructure – OSS , process staff and contacts – SLAs – Domestic provider
  • Sp Probs – Managed cust revenue declining – Race to bottom? – Increase International transit – High expectations of quality and relaibility
  • Lame aternative IX Update technique – Simon Blake
  • New system to update filter lists for IXs
  • Citylink can instead download list of networks from customer URL
  • Pulls list daily
  • If diff email for confirmation or action it immediately
  • ALTO – LLyod
  • Helping p2p users select local/nearby peers
  • GeoIP and anycasting – rough
  • ALTO allows ISP to provide application, localtion, routing information, charging information, performance.
  • ISP puts on network some servers (itrackers) that deliver to p2p client the policy information
  • p2p caches (very close to edge) can be advertised
  • No currently in use in the wild
  • IPv6 taskforce – Dean Pemberton
  • Internetnz+ MED
  • TechSIG – 3 Hui in 2009 – Aimed at CIO/CTO – Went really well
  • Looking at more training (session in 2009 already)
  • Other things Task Force can do?

Building a Datacentre for less than $1 million – Gerald Creamer

  • When it’s your own money you care so much more
  • Had to move datacenter to another building
  • Short is that you can’t do it for less than $1m
  • Significant cost areas – Physical – power – cooling – network – time
  • The right building – 18 m search – 100 sites looked at – 7 sites investigated – 4 site due diligence
  • Engineers – “consultation” vs “converstaion”
  • First culling – all concrete – Not ground , not top floor – Strong 5kPa – high stud – no sprinklers – built between 50 and mid-80s – CBD fringe
  • $400 per m2 to strength building
  • 2nd culling – close to street transformer – shorter power cables runs in building – shorter pipes for colling – outdoor space – generater space – near data networks
  • Useful – friendly landlord – nice bank – recession (kean landlord)
  • Save money – quality pre-owned hardware – “free” stuff – Ask experts – do some stuff yourself – Get experts to do others
  • Cables up abandoned lift shaft
  • 2nd hand generator – not as large as final requirement but bigenough for current build
  • Room to upgrade UPS, generator, cables and space spec’d for more
  • domestic meters to measure power in each rack
  • Process Coolers (cheaper) 28KW each $1500/KW cost – $70k of aircon for $7k – check serial number with manufacter to find product history
  • Seismic Bracing – $30k
  • Helped corps clear out datacenters they were moving out of rooms ( “make good” on leases) and picked up some equipment
  • Citylink and Telstra provisioned fibre. Telecom less helpful.
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