Minutes of Working Group Meeting
IfA Manoa Facility, Honolulu
December 14, 2012
- Kanoa Withington (CFHT)
- Simon Chan (Gemini)
- Tim Minick (Gemini)
- Gavin Seo (IfA)
- Pui Hin Rhoads (IfA)
- Miranda Hawarden-Ogata (IRTF/IfA)
- Jonathan Chock (Keck)
- Mac Cooper (SMA)
- Luke Mckay (UH88/IfA)
- Current Network Status
On October 15 -- Starting at around 8:00pm, the observatories were having
intermittent and sporadic problems locally and to/from the Internet.
At ~9:30pm, UH-ITS fixed the problems by shutting down the SX south
path and rerouted all observatories traffic through Manoa. We were
never able to track down the source of the problems. The problems
no longer existed when UH-ITS normalized the network path the next
morning. Our best guess is that someone in LA made a configuration
mistake which leaked the R&E routes to the commodity peers, however
routing policies prohibited the observatories network packets from
traversing those networks.
Between October 30 and November 8, there were several attempts by the
AARNET to perform maintenance work on their LA router. On three of these
occasions, the scheduled event was aborted due to conflicts in their
scheduling. On each of these occasions, UH-ITS rerouted the observatories
traffic through Oahu.
On December 7 -- Starting at 9:00am UH-ITS worked on replacing all the
older routers at the network room at Mauna Lani with the Cisco C4500X
in order to clear some rack space. According to UH-ITS, the new routers
are taking half of the space of the older units. They were done by 2:00pm.
No downtime was experienced, with the redundant routes going through
Mauna Lani, UH-ITS was able to maintain connectivities for all UH
supported sites during the entire process.
- Report from the Users' Meeting
Pui Hin went through the PowerPoint presentation she gave at the MKO
Users' Committee Meeting. It is mostly a summary of the progress
of the network upgrades funded by the various stimulus grants secured
by UH-ITS in 2010. The presentation was subsequently distributed to
members of the Working Group.
- Plans for 10Gb and IPv6 in Hilo
The Cisco C4500X-16s were finally available for ordering toward
the end of September with delivery date in November. Pui Hin
has ordered two units, one for Hilo and one for the Summit, shipment was
to be in December. Even though we are not expecting the 10Gb to be
available on the Summit until July or August, Pui Hin plans to deploy
the new switch as soon as possible due to the fact that the C4500X-16,
with 5 hot-swappable fans and redundant power supplies, is a more robust
piece of equipment for the Summit than the C3750s that are currently
On the SPF+s, Pui Hin has been using a non-Cisco product for Multimode
connections at ~$350 each, but she hasn't located a suitable non-Cisco
product for SM connections. The Cisco LR SFP module is listed at
- Weather Station at HP
Responses from the users were diverse, some like the idea of multiple
non-interactive screens and some are worried that their favorite weather
related webpages will no longer be available. There is a suggestion
that eight screens might be overkill as users can always view any
specific screen on their own computers. Another suggestion was to have
several static screens and one interactive screen.
A major part of the meeting was then spent discussing how to fit just
the contents that have been suggested by those responses on eight screens
which was the number of screens we have in mind. Some of the contents,
such as view from the webcams, are easy to handle. Other pages, for
example, those at the MKWC website, are set up more for manually scrolling
and clicking and are not easy to fit on static screens.
It was clear that more discussion is needed.
- Next meeting
March 14th, Thursday, 10:00am at the Gemini Hilo Facility.
Note: This meeting has been rescheduled for Wednesday, March 20th.
Last updated March 20, 2013 by Miranda Hawarden-Ogata