Following the Network meeting, there was an impromptu System Administration
- Current Network Status
On December 1st, there were problems connecting to outside of Hawaii
after a software upgrade on the Hawaii border router. UH-ITS
subsequently reverted to a earlier version of the software. The
problem lasted about 2 hours.
Jonathan Chock reported some issues with DNS and a new UH IE proxy
server. Pui Hin needs to check with UH-ITS.
- Weather Kiosk at HP - Richard Chamberlin (CSO)
Richard Chamberlin presented the idea of a weather information station
at HP to be placed near the entrance of the common building. The
weather station will allow day crews and operators easy access to
information on summit conditions during poor weather periods.
The weather station will be a single purpose computer expected to be
used to browse the JAC weather site and other URLs descended from
this site only. To prevent people from using this computer for other
purposes, it is likely that just a mouse, no keyboard, will be
provided for input.
Since web browsing is not a computing power demanding application, Pui Hin
suggested using one of the surplus Sun SPARCstations from the IfA. A
decent flat panel display will be purchased by MKSS.
Pui Hin asked the working group members to solicit suggestions and
recommendations from their day crews.
- Update of the SX TransPORT 10 Gigabit per second (Gbps) links and
extension to MK
UH-ITS is still working on the agreement with carriers on the
portions of the connection.
- Common DS3 upgrade
The common DS3 between Hilo and the summit was upgraded to 100mbps in
the early morning of November 1st.
- Replacement of ATM connections at the summit with Gigabit Ethernet
The replacement of the common DS3 with a Fast Ethernet connection
ended the need for ATM equipment in Hilo.
Pui Hin suggested that we should start supporting Gigabit Ethernet
on the summit in the next fiscal year and should phase out the OC3
ATM switched network in the next two years. As the observatories'
ATM routers get old, it will be more cost effective to replace these
routers with multilayer switches.
- HP dormitories network wiring
A PO has been processed for the HP dormitories network wiring.
Hawaiian Telcom has advised Pui Hin that the job will most likely be
scheduled for Mid January to Mid February.
Pui Hin will be proceeding with the acquisition of equipment for the
network connections. Following is the equipment list: (all Cisco's)
Catalyst 3750 with 48 10/100 + 4 SFP enchanced - common area
Catalyst 2950 with 48 10/100 ports w/2 fixed 1000BASE-SX uplinks - Dorm B
Catalyst 2950 with 24 10/100 ports w/2 1000Base-SX ports - Dorm C and D
The 3750 is a multilayer switch with four GE capable ports, three of
which will be used to provide connections to building B, C, and D. The
fourth port will be available for the summit GE switched network when
that becomes available.
Since the 3750 is a multilayer switch, it will support VLAN and
the observatories could elect to have separate subnets at HP. VTP
could also be deployed between HP and observatories once the summit
GE network is in place.
- Webserver move
The MKOCN MRTG graphs have been moved to a different webserver at the
IfA. Pui Hin asked the observatories to modify their firewalls to
allow SNMP to the new webserver.
- Message from the Laser Guide Star (LGS) Working Group
Kanoa Withington, as a member of the LGS Working Group, reminded us of
the importance of a reliable summit network. The LGSTCS (Traffic
Control System) depends on the availability of the MK summit network.
The development of the LGS systems is now moving into a mode where
observatories with LGS systems will not be able to observe at all
without a functioning summit network and valuable observing time
will be lost should the network fail.
The MKOCN working group acknowleges the charge and will continue
to work for a faster and more reliable summit network and
Internet connection with the LGS in mind.
- Next meeting
March 8th Thursday, 10:00am at IfA , Manoa
Note: Due to the HP dormitories network wiring, the meeting has been
rescheduled for March 23, time and place unchanged.