GLAST LAT Project
GLAST Large Area Telescope:
Gamma-ray Large
Area Space
Telescope
SLAC – NRL Data Connection
for the GLAST LAT
Environmental Test
Status report for the Environmental
Test Planning Meeting
March 16th, 2005
Brian Grist
GLAST LAT Integration and Test
bgrist@slac.stanford.edu
650-926-2998
SLAC-NRL Data Connection for GLAST Environmental Test 3/15/05
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GLAST LAT Project
Overview
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NRL-SLAC Network Working Group
Contact Information
When, Where, What
Proposed Solution
Network Connection Rate
Security Requirements
Test Area Network Diagram at SLAC
Other Options Explored
Meeting Schedule
SLAC-NRL Data Connection for GLAST Environmental Test 3/15/05
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GLAST LAT Project
NRL-SLAC Network Working Group
• A working group has been set up to plan the NRL-SLAC
network connection.
• There have been many email over the last few weeks getting
the points of contact identified (see next page) and to
exchange of concepts.
• The first teleconference/meeting was held yesterday (March
15th) to talk about a proposed solution and to capture action
items.
– Attendees were: Brian Grist (I&T), Bryson Lee (ISOC), Daryl Yentis
(NRL), Bill Johnston (ESnet), Jim Gagliardi (ESnet)
SLAC-NRL Data Connection for GLAST Environmental Test 3/15/05
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GLAST LAT Project
Group Contact Information
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NRL
– Daryl Yentis
• Naval Research Laboratory
• (202) 767-2719
• yentis@nrl.navy.mil
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SLAC
– Brian Grist
• GLAST LAT Integration and Test
• (650) 926-2998
• bgrist@slac.stanford.edu
– Rob Cameron
ESNet
– Bill Johnston
• ESnet Dept. Head and Senior
Scientist
• Lawrence Berkeley National
Laboratory
• wej@es.net
– Jim Gagliardi
• Energy Sciences Network
(ESnet)
• Lawrence Berkeley National
Laboratory
• jvg@es.net
• (510) 486-7009
• GLAST LAT Instrument
Operations Center (ISOC)
• (650) 926-2989
• rac@SLAC.Stanford.EDU
– Bryson Lee
• GLAST LAT Instrument
Operations Center (ISOC)
• (650) 926-2886
• blee@SLAC.Stanford.EDU
– Les Cottrell
• SLAC Computing Services
• (650) 926-2523
• cottrell@SLAC.Stanford.EDU
– Richard Dubois
• GLAST LAT Science Analysis
Software
• (650) 926-3824
• richard@SLAC.Stanford.EDU
SLAC-NRL Data Connection for GLAST Environmental Test 3/15/05
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GLAST LAT Project
When, Where, What
• When
– December 2005 through April 2006
• Needs to be available from setup through all tests at NRL
• Where
– NRL - building A59
• Action: Daryl to talk to Paul Dizon about locations within
building A59 where the test equipment will be located.
• What does the network connection need to support
– Send instrument data back to SLAC during Environmental
Tests as file transfers.
– Send Test S/W upgrades/fixes to Test Stands from SLAC as
file transfers.
– Support for ISOC testing
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GLAST LAT Project
Proposed Solution
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Use the existing network infrastructure for file transfer.
– NRL<->DREN<->ESnet<->SLAC
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NRL - Naval Research Laboratory internal network
DREN - Defense Research Engineering Network
ESnet - Energy Science network
SLAC - Stanford Linear Acceleratory Center internal network
This is provide a high-speed, two-way connection at little cost to the project
The LAT test equipment would have its firewall and machines “registered” with
the NRL network.
– This will allow us to have specific nodes within the collection of I&T
computers made visible for direct access here at SLAC; for example the
data server (DMZ) to allow the test data to flow to SLAC.
The link is managed and could be set up to notify network and LAT Test
Personnel of scheduled outages.
– Outages are scheduled and last in the ½ hour timeframe and usually on
the weekends.
– The LAT does not need a real-time connection as we are only talking about
simple file transfers.
DREN peers (connects) with ESnet at several points.
– Action: Bill Johnston to talk to DREN to discuss which connection point to
use.
Additionally, access to NRL computers can me made with a VPN account.
This is the preferred solution.
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GLAST LAT Project
Network Connection Rate
• 100 Mbps
– Same as we currently have at SLAC between the Test
Equipment (building 33) and SLAC Computing Services.
– NRL can easily support 100 Mbps;
• This is the standard setup within buildings
• Between buildings is faster and out of the facility is faster still
– DREN and ESnet can support this rate.
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GLAST LAT Project
Security Requirements
– The LAT systems must conform to NRL/Navy Computer
Security requirements.
• For this, a Memo of Understanding (MOU) between
SLAC/Project management, your NRL sponsor (Code 7650)
and NRL Network Security would be issued stating that LAT
would conform to all NRL Computer Security requirements.
• Action: Daryl to help setup the MOU
– There is an NRL publication with all the specifics will be
sent
• Action: Daryl to send publication
– Identify responsible Network Security POCs, list systems,
O/S, versions, etc. and certify that the systems have been
patched as required.
• Action: Will need to identify the POC for this activity.
SLAC-NRL Data Connection for GLAST Environmental Test 3/15/05
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GLAST LAT Project
Test Area Network Diagram at SLAC
• The current
GLAST LAT
test setup is
isolated by
firewall from
the rest of
SLAC
• Some subset
of this
equipment
would be
traveling to
NRL (only an
example)
Light House
Management
System
LMS
Media
Drive
SLAC, SCS
Bldg 33 Switch
Firewall / Router Primary
Backup Server
Online Detector System
ODS
ECS Win98
Private
Network
Xyplex
DMZ
LatTE Work
Station
Dataserver
W2K/Sybase
Web Server
W2K
Firewall / Router Redundant
SQL/LatTE
Server
LatTE Work
Station
VME Crate
Switch
Data Server
Printer
HouseKeeping
Work Station
LatTE Work
Station
VME Crate
Remote
Sensors
LatTE Work
Station
LatTE Work
Station
LatTE Work
Station
LatTE Work
Station
VME Crate
VME Crate
From: LAT-PS-05504-01
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GLAST LAT Project
Other Options Explored (not recommended)
• Direct T3 connection to ESnet
– This option would be to connect the GLAST LAT Test
equipment directly to ESnet with a rented T3 line.
– The initial cost estimate is outside of the scope feasibility
with the current funding.
• Approx. $70,700 – ($48,400 in non-recurring and a total of
$22,300 for 5 months in recurring)
• The possibility of using a recycled router could lower the cost
– Would only provide less than 43Mbps.
– This choice was deemed to costly and would not provide
the same capacity connection so is NOT recommended.
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GLAST LAT Project
Meeting Schedule
• NRL-SLAC Network Working Group (COMPLETED)
– Tuesday, March 15th
• LAT Environmental Test Planning Meeting
– Wednesday, March 16th - 8 AM PST (11 PM EST)
– NRL Bldg 209 Rm 321A
– Call-in number: 800-254-5920 Passcode: 692564
• NRL- SLAC Network Working Group
– Tuesday March 29th, 2005
• Environmental Test Planning Review
– April 15th
• NRL-SLAC Network Working Group Meeting
– ???
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