MKO ComNet Working Group Meeting Minutes
W. M. Keck Observatory
April 15, 1994
- Jonathan Chock (WMKO)
- Bernt Grundseth (CFHT)
- Bob Link (CFHT)
- Bob McLaren (IfA)
- Kyoji Nariai (Subaru)
- Eric Pilger (IRTF)
- Mike Prater (VLBA)
- Antony Schinckel (CSO)
- Henry Stillmack (JAC)
- Tjet Sun (IfA)
- Network Status and Performance
The network has been problem-free since the switch to single-mode
interfaces and CNX routers at all nodes on the FDDI ring. Additional
Ethernets can now be added to the CNX-600 at HP--contact Tjet Sun
- Hewlett-Packard Network Analyzer
The draft loan policy was approved as presented. A familiarization
session with the analyzer took place following the meeting. Keck has
the unit on loan for the next two weeks. CFHT has reserved it for the
folowing two weeks.
- Router Maintenance
The Working Group gave its strong endorsement to the proposal to
have all routers on the FDDI ring covered by a single maintenance
contract which will be administered through the MKSS Network cost
center. A schedule of the
costs is attached.
ACTION: BMc to forward this information to MKSS for inclusion
in FY 94/95 draft budget.
- Optical Bypasses
Following further discussion of the cost/benefit, it was decided
that optical bypasses are not needed at this time. Item closed.
- Utilities Relocation
The various options for rerouting and upgrading the communications
infrastructure in conjunction with the Gemini and Smithsonian
Submillimeter Array (SMA)Projects were discussed. GTE Hawaiian
Telephone has stated it should be possible to splice new cable
to existing fibers at Handhole 16 reliably and with no interruption
in service (new fibers checked before ones in use are interrupted).
The Working Group agreed with this approach, if it can be achieved
as described. The Working Group also agreed that we should use this
opportunity to accommodate and to prepare for upgrades to the
communications infrastructure. Specifically mentioned was the
provision by common carriers (e.g. HawTel) of fiber-based services
directly to the facilities. Since the electrical power loop will
be upgraded from the batch plant area over to JCMT and then extended
to SMA and Subaru (closing the loop), it appears that this path
offers the best prospect for providing upgraded communications to
CSO, JCMT, SMA, Subaru, Keck, and eventually IRTF. The alternative
of trying to work with the already congested two-conduit run from
CFHT to Keck appears less promising based on current information.
ACTION: BMc to continue exploring this issue with Gemini and SMA.
It came up during this discussion that one or more of the dark
fibers to Keck are faulty.
ACTION: JC and TS to investigate
- MKOCN Info on MOSAIC
Tjet Sun suggested using MOSAIC to distribute information about
the network, e.g. the troubleshooting guide and analyzer sign up.
- Next Meeting
Friday July 15, 9:30 am at Subaru Office (in Hilo Hotel).
Last updated December 7, 2001 by