RIPE 62                      Technical Report                      Erik Romijn <eromijn@ripe.net>                      Sen...
Introduction      Erik Romijn - RIPE 62                  2Friday, May 6, 2011
The Technical Team                                 Ben, Brian, Darius, Erik,                              Menno, Paolo, Ră...
What Do We Do?      •    If it has wires, it’s ours              –   (except for beamers, lighting, audio and stenography)...
What do we do?      Erik Romijn - RIPE 62   5Friday, May 6, 2011
Network setup                                                RIPE meeting                                                 ...
Network setup      Erik Romijn - RIPE 62   7Friday, May 6, 2011
Network setup      Erik Romijn - RIPE 62   8Friday, May 6, 2011
We need to be creative      Erik Romijn - RIPE 62    9Friday, May 6, 2011
We need to be creative      Erik Romijn - RIPE 62    10Friday, May 6, 2011
We need to be creative      Erik Romijn - RIPE 62    11Friday, May 6, 2011
We need to be creative      Erik Romijn - RIPE 62    12Friday, May 6, 2011
New setups      Erik Romijn - RIPE 62                                           13Friday, May 6, 2011
Better cameras for plenary      Erik Romijn - RIPE 62        14Friday, May 6, 2011
Better cameras for plenary      Erik Romijn - RIPE 62        15Friday, May 6, 2011
Plasma screen setup      Erik Romijn - RIPE 62   16Friday, May 6, 2011
Plasma screen setup      Erik Romijn - RIPE 62   17Friday, May 6, 2011
Plasma screen setup      Erik Romijn - RIPE 62   18Friday, May 6, 2011
LISP      •    Separate SSID setup to experience LISP           connectivity, IPv4 and IPv6      Erik Romijn - RIPE 62    ...
Issues encountered      Erik Romijn - RIPE 62                                                   20Friday, May 6, 2011
IPv6 printing      Erik Romijn - RIPE 62   21Friday, May 6, 2011
IPv6 printing      Erik Romijn - RIPE 62   22Friday, May 6, 2011
IPv6 connectivity      •    Several issues with IPv6 connectivity this time              –   RAs from LISP router together...
IPv6 debugging is tricky   dhcp-24-90:~ eromijn$ ndp -na   Neighbor                        Linklayer Address Netif Expire ...
Rogue RAs      •    LISP router used public network for uplink      •    Interface with autoconfigured address: receives   ...
Rogue 6to4      •    Windows laptop announcing 6to4 RA      •    Shouldn’t affect anyone, because native is preferred     ...
Multicast issues      •    Effect: not getting an address, getting an address           but not reaching first hop      •  ...
Other issues      •    Newest model MacBook Pro can drop off wireless              –   Workaround reported by users: frequ...
Very long patches      Erik Romijn - RIPE 62   29Friday, May 6, 2011
Very long patches      Erik Romijn - RIPE 62   30Friday, May 6, 2011
Stats      Erik Romijn - RIPE 62                                      31Friday, May 6, 2011
TTM Observations      Erik Romijn - RIPE 62                              32Friday, May 6, 2011
TTM Observations      Erik Romijn - RIPE 62                              33Friday, May 6, 2011
Erik Romijn - RIPE 62   34Friday, May 6, 2011
TTM Observations                                Internet Initiative Japan:                              lower IPv6 than IP...
DHCP lease vendors                              59%                                    14%              Apple             ...
Uplink traffic         Peak: 48 Mbit/s in, 9 Mbit/s out       Average: 10 Mbit/s in, 2.5 Mbit/s out      Erik Romijn - RIP...
IPv6 traffic                              17.3%                                      of upli                              ...
IPv6 traffic on the RIPE meeting network                                  100 % of uplink traffic being IPv6              ...
Wireless                              20 base stations deployed                               Peak: 450 associations      ...
High-density access point distribution      Erik Romijn - RIPE 62                    41Friday, May 6, 2011
See you in Vienna!                                 Questions?                                      Erik Romijn            ...
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RIPE62 technical report

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RIPE62 technical report

  1. 1. RIPE 62 Technical Report Erik Romijn <eromijn@ripe.net> Senior Software EngineerFriday, May 6, 2011
  2. 2. Introduction Erik Romijn - RIPE 62 2Friday, May 6, 2011
  3. 3. The Technical Team Ben, Brian, Darius, Erik, Menno, Paolo, Răzvan, Sjoerd Erik Romijn - RIPE 62 3Friday, May 6, 2011
  4. 4. What Do We Do? • If it has wires, it’s ours – (except for beamers, lighting, audio and stenography) • Some highlights: – Local servers running DHCP, IRC, ripe62.ripe.net, registration software, ... – Webcasts / recordings – (Wireless) network – Presentation system – Services centre Erik Romijn - RIPE 62 4Friday, May 6, 2011
  5. 5. What do we do? Erik Romijn - RIPE 62 5Friday, May 6, 2011
  6. 6. Network setup RIPE meeting venue Public network Service network Private network Wireless Streaming Registration Terminal room TTM / Rosie Network mgt Erik Romijn - RIPE 62 6Friday, May 6, 2011
  7. 7. Network setup Erik Romijn - RIPE 62 7Friday, May 6, 2011
  8. 8. Network setup Erik Romijn - RIPE 62 8Friday, May 6, 2011
  9. 9. We need to be creative Erik Romijn - RIPE 62 9Friday, May 6, 2011
  10. 10. We need to be creative Erik Romijn - RIPE 62 10Friday, May 6, 2011
  11. 11. We need to be creative Erik Romijn - RIPE 62 11Friday, May 6, 2011
  12. 12. We need to be creative Erik Romijn - RIPE 62 12Friday, May 6, 2011
  13. 13. New setups Erik Romijn - RIPE 62 13Friday, May 6, 2011
  14. 14. Better cameras for plenary Erik Romijn - RIPE 62 14Friday, May 6, 2011
  15. 15. Better cameras for plenary Erik Romijn - RIPE 62 15Friday, May 6, 2011
  16. 16. Plasma screen setup Erik Romijn - RIPE 62 16Friday, May 6, 2011
  17. 17. Plasma screen setup Erik Romijn - RIPE 62 17Friday, May 6, 2011
  18. 18. Plasma screen setup Erik Romijn - RIPE 62 18Friday, May 6, 2011
  19. 19. LISP • Separate SSID setup to experience LISP connectivity, IPv4 and IPv6 Erik Romijn - RIPE 62 19Friday, May 6, 2011
  20. 20. Issues encountered Erik Romijn - RIPE 62 20Friday, May 6, 2011
  21. 21. IPv6 printing Erik Romijn - RIPE 62 21Friday, May 6, 2011
  22. 22. IPv6 printing Erik Romijn - RIPE 62 22Friday, May 6, 2011
  23. 23. IPv6 connectivity • Several issues with IPv6 connectivity this time – RAs from LISP router together with Mac OS X bug – Rogue 6to4 RAs from Windows box – Issues in multicast traffic • IPv6 debugging is difficult – Less experience than IPv4 – Wireless can influence the result – All problems very intermittent Erik Romijn - RIPE 62 23Friday, May 6, 2011
  24. 24. IPv6 debugging is tricky dhcp-24-90:~ eromijn$ ndp -na Neighbor Linklayer Address Netif Expire St Flgs Prbs 2001:67c:64:42:223:6cff:fe8a:2e8a 0:23:6c:8a:2e:8a en1 permanent R fe80::1%lo0 (incomplete) lo0 permanent R fe80::42:0:0:1%en1 0:0:5e:0:2:2a en1 23h59m59s S R fe80::223:6cff:fe8a:2e8a%en1 0:23:6c:8a:2e:8a en1 permanent R fe80::250:56ff:febc:7746%en1 0:50:56:bc:77:46 en1 9h13m31s S fe80::288c:82de:eb60:60ed%en1 0:24:d7:18:53:18 en1 5h11m3s S R 23h59m59s 23h57m40s 5s 40s Erik Romijn - RIPE 62 24Friday, May 6, 2011
  25. 25. Rogue RAs • LISP router used public network for uplink • Interface with autoconfigured address: receives address, then sends RAs from there... • Enable ipv6 nd surpress-ra? – No luck, only suppresses unsolicited RA - no way to disable solicited RA • Set RA lifetime to zero – Mac OS X bug (fixed in Lion) treats this as “infinite lifetime” • Solution: disable IPv6 on interface Erik Romijn - RIPE 62 25Friday, May 6, 2011
  26. 26. Rogue 6to4 • Windows laptop announcing 6to4 RA • Shouldn’t affect anyone, because native is preferred • Very difficult to find, despite not being Apple  host goaway {    hardware ethernet ..:..:..:..:53:18;    deny booting;  } Erik Romijn - RIPE 62 26Friday, May 6, 2011
  27. 27. Multicast issues • Effect: not getting an address, getting an address but not reaching first hop • AP not sending (parts of) multicast traffic – Fixed by repatching: new patch, reboot of AP and reset of switch port • Probably not caused by filling up multicast channel • Lots of mdns traffic • Further causes unknown Erik Romijn - RIPE 62 27Friday, May 6, 2011
  28. 28. Other issues • Newest model MacBook Pro can drop off wireless – Workaround reported by users: frequent pings • Next meeting: – IPv6 RA filtering – Consider mdns filtering Erik Romijn - RIPE 62 28Friday, May 6, 2011
  29. 29. Very long patches Erik Romijn - RIPE 62 29Friday, May 6, 2011
  30. 30. Very long patches Erik Romijn - RIPE 62 30Friday, May 6, 2011
  31. 31. Stats Erik Romijn - RIPE 62 31Friday, May 6, 2011
  32. 32. TTM Observations Erik Romijn - RIPE 62 32Friday, May 6, 2011
  33. 33. TTM Observations Erik Romijn - RIPE 62 33Friday, May 6, 2011
  34. 34. Erik Romijn - RIPE 62 34Friday, May 6, 2011
  35. 35. TTM Observations Internet Initiative Japan: lower IPv6 than IPv4 latency Erik Romijn - RIPE 62 35Friday, May 6, 2011
  36. 36. DHCP lease vendors 59% 14% Apple HTC 16% 11% Intel Other / unknown Erik Romijn - RIPE 62 36Friday, May 6, 2011
  37. 37. Uplink traffic Peak: 48 Mbit/s in, 9 Mbit/s out Average: 10 Mbit/s in, 2.5 Mbit/s out Erik Romijn - RIPE 62 37Friday, May 6, 2011
  38. 38. IPv6 traffic 17.3% of upli traffic nk is IPv6 Peak: 35 Mbit/s in, 2 Mbit/s out Average: 3 Mbit/s in, 144 kbit/s out Erik Romijn - RIPE 62 38Friday, May 6, 2011
  39. 39. IPv6 traffic on the RIPE meeting network 100 % of uplink traffic being IPv6 75 50 25 0 60 62 64 66 68 70 72 74 76 RIPE meeting Exponential Linear Erik Romijn - RIPE 62 39Friday, May 6, 2011
  40. 40. Wireless 20 base stations deployed Peak: 450 associations Erik Romijn - RIPE 62 40Friday, May 6, 2011
  41. 41. High-density access point distribution Erik Romijn - RIPE 62 41Friday, May 6, 2011
  42. 42. See you in Vienna! Questions? Erik Romijn <opsmtg@ripe.net> Erik Romijn - RIPE 62 42Friday, May 6, 2011
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