I attended the NZNOF 2010 conference in Hamilton. Notes as below.
Opening
- Overview by Dean and Jonny on developments, especially about the trust
National Library Webharvest
- 2nd Harvest planned in 2010
- Harvest planned for April
- Material from 1st harvest not yet online
- Feedback requested on “Notification” , “robots Policy” , “Location of Harvester”
- Would like feedback on the options paper
WAND Group
- PMTUD (Path MTU discovery) in ipv6
- Tested how well this is working
- Sent ICMPv6 PTB message to hosts and see if remote host changes behavour in response to it (drop from >1280 to 1280 byte packets)
- Tested 1647 websites (working ones from Alexa top 1 Million sites)
- Used scamper to test
- 58% PMTU worked, 34% packets too small ( might be working already, unsure)
- 5% PMTU failed or no response
- Working on protocols other than port80
- Multiple vantage points, Other sources of addresses, web interface to toll
- Conclusion – PMTUD mostly works – read RFC 4890
Anomaly detection in Networks – Andreas Loft
- Doing this automaticly is good
- Several existing tools
- Nothing very concrete
WAND AMP Project
- Boxes hosted by ISPs and PCs and sit around pinging each other
- Good coverage of TelstraClear since ISPs use them as upsteeam, less so for Telecom
- 1 ping / minute , 10 minute average posted
- Cute interface to graphs
- http://www.wand.net.nz -> click on “NZ AMP”
- Still under development
Shane Hobson – Velocity – Fibre to the home/premises
- “How to build a Fibre network with a sack full of Government cash”
- Broadband Challenge Fund $25M
- Hamilton had 5 companies with some Fibre – Formed Hamilton Fibre Networks Ltd
- HFN got $3m grant from fund
- HFN partnered with Velocity Networks
- 50-60km of Cable around Hamilton
- Sell layer-2 ethernet services (similar to citylink)
- Govt Ultra fast Broadband fund of $1500
- Aim Ultra Fats BB to 75% of NZers
- 100% of NZers in 25 (or 33) largest towns and cities
- BB today is 25Mbit on ADSL2 contended to perhaps 250kb/s
- UltraFats is 100Mb/s+ (50Mb/s upstream) with zero contention on access network
- Huge amounts of bandwidth potentially ( hundreds of GB/s just for each say Hamilton )
- ISPs need to decide: Buy Layer 2 or buy dark fibre?
- ISPs: Different standards/services in different regions
- ISPs: What content / services ?
- ISPs: Peer at regional exchanges to reduce haul on Nat links?
- ISPs: ISPANZ role?
- ISPs: Caching, CDNs
- ISPs: Zero rated “on net” traffic , Multicast IPTV, software updates
- right now Hamilton provider doing:1/3 Dark Fibre, 1/3 L2 within companies , 1/3 to Internet
- Frustrating to watch City Council digging up ground and not putting down ducts or letting other people do it.
- Some councils are better
