MKO ComNet Working Group Meeting Minutes

CSO Base Facility, Hilo

June 4, 1998




  1. Current Network Status
  2. There were two incidents to report, both occurred at CFHT:

    The ring is currently operating at full counter-rotating mode.

  3. FY 98/99 budget
  4. Pui Hin Rhoads presented the proposed FY 98/99 budget:

    Henry Stilmack of JAC requested to drop the maintenance on the JCMT router since all JAC traffic is currently routed through UKIRT. Pui Hin will recalculate the charges and have an update at the next meeting.

  5. Status of Infrastructure Upgrade
  6. Renovation of the old generator room is completed except for some minor detail work. Inspection by the architect and engineers was made on May 21. HawTel is planning to move their equipment from the temporary area in the old generator building to the permanent location in the same building on June 15. Removal of the radio on top of the 88" dome will occur once the voice, T1s and 56kb services are taken care of. Several members of the group expressed interest in seeing if the radio could be used to support at least voice services in case of a failure to the fiber system. Pui Hin Rhoads will look into it.

    The MKOCN fibers extension is completed. Gemini is expected to be added to the FDDI ring after the meeting.

  7. Update of UH's effort to improve Internet Access
  8. Pui Hin pointed out that in order for the Observatories to take advantage of the extra bandwidth, the link between HP and UH Manoa has to be upgraded. The cost will consist of the cost of the link itself and the UH Internet access charges. David Lassner of UH has indicated that the Internet access charges will be based on the size of the link between HP and UH. Following are some budgetary rates for a 6Mbps link from HawTel:

    A quick survey shows that most members will not be interested if the increase in bandwidth means a big increase in their costs. Pui Hin will look into prices for a smaller size link, such as 2 T1s.


  9. Further Discussion on ATM Support and other Upgrades
  10. Pui Hin reported that she has been working with Cisco on ways to deal with the backup units. Together with the migration to ATM, Pui Hin also wants to upgrade the ethernet at HP to 100Mbps, she pointed out that a 10Mbps ethernet can easily be overloaded with a couple of the new Sun Workstations.

  11. Interop 98 Summary
  12. Although ATM equipment for both LAN and WAN were widely available, IP integration remains complicated and confusing. Different vendors are taking different approaches.

    Gigabit Ethernet is emerging as a very viable alternative for high speed network for the LAN. A draft standard for Gigabit Ethernet over fiber is expected to be ratified in the near future. The distance limit according to this draft is 550 meters on multimode fibers and 5000 meters on singlemode fibers. A draft to provide Gigabit Ethernet over 4-pair Category 5 unshielded twisted pair wiring up to 100 meters is under developement. Gigabit Ethernet provides QOS through protocols such as RSVP and VLAN.

  13. Sun monitors failing at the summit
  14. It could very well be that climate control is the key to getting equipment to work properly on the summit.

  15. Next Meeting
  16. Thursday, September 10, 1998, 10:00 a.m., at Gemini Hilo office.

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Last updated December 10, 2001 by Miranda Hawarden-Ogata