Transcript HiSeasNet-FocusGroup09

HiSeasNet Focus Group
Meeting
November 17, 2009
Seattle, WA
Steve Foley
Scripps Institution of Oceanography
This Morning
 Quick intro and Highlights run-down
 Open format
 Open, informal discussion
 I have some suggested topics
 Toss out your own
 Open discussion?
 Show-and-tell
 Tech-to-tech chatter of stuff that works or doesn’t
 Open forum
 Q&A with me or each other?
 Demos of web/other stuff?
 Small group/break-out discussion?
 Adjourn to somewhere even less formal?
2009 Changes & Highlights
 Fewer AOR slots, more POR slots…for now
 POR has 6 slots with 256kbps, 5 slots in 2010
 AOR has 3 slots with 128kbps, 4 slots in 2010?
 Wiki up and running still well
 FAQs, frequencies, calendar, resources,
maintenance reports, etc.
 More community input would be better
 Come get an account if you want one
 Training class run at SIO in August
 Do we need another?
 Accelerators tested on 2 ships in 2009, fleet
purchase made for 2009/2010 install
 Atlantic Explorer online with iSCPC connection
Accelerators
 Features include:
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Protocol tuning for long-fat pipes
Compression and caching of packets (TCP & UDP)
Better bandwidth control at higher layers (min/max/etc)
Auto fragmentation (better VoIP?)
 Why bother?
 More ongoing effective bandwidth for 1-time cost
 ~20% shore-to-ship, 65%+ ship-to-shore
 Great for streaming uncompressed data to shore (Real-time!)
 Expand 4830 and 4930 units in use
 4830s have no disk, are for C-band ships
 4930s have disk for web proxy, are for Ku-band ships
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Shipped to home institution, install info on the wiki
Rolling install…plug it in, Steve will light it up at some point
Configuration maintained on shore
Tuning process is a bit touchy
 Requires feedback from the ship
 Get out what you put in
 No acceleration on compressed or encrypted data
Connecting without tunnels
 Pros:
 No tunnel equipment on shore required
 No extra hop or failure point on shore
 No need to get Campus IT involved during
setup or troubleshooting
 May present like other connection types
 Flexibility for MobileIP, VPN to campus,
non-HSN footprint migration
 Cons:
 Performance overhead of tunnel/VPN
across satellite
 Not part of campus network
More Potential Topics
 Accelerators
 Installation, use, policies, tuning process, etc.
 Wider coverage areas
 GE-23, Med, IOR, Alaska, split Ku into AOR/POR?
 Wiki demo/discussion
 Tracking issues and DAC/Comtech cable
 HSN-wide parent web proxy
 Elective, could provide shared caching, antivirus/ad filtering,
blacklisting, ToS tagging for various URLs/TLDs
 Security/firewalls/DoS – Need support from HiSeasNet?
 Routing
 Tunnel alternatives?
 MobileIP, VPNs, etc.
 Bandwidth
 Upgrades, shared vs. separate
 Training
 Feedback…did it work in the long term? Do we need more?
 Policies
 What are they? How to enforce them? Should they be the same?
 Services offered on ships (IM, web, mail, Skype, streamed data,
etc)
 Who is running what? How does it work? What does Science expect now?
 Random feedback / discussion / experiences
GE-23 Satellite
 Wider beam is weaker and requires larger 1.5m antenna
 No earth station capabilities right now
 Strange satellite, needs some hardware changes to shipboard
antennas ($2k?)
 Availability may be reduced now due to KVH use of satellite
 Low look angle in port and coastal waters
Galaxy-18 Satellite
 Used quite successfully on Pt Sur (1m dish) in Gulf of
Alaska in 2009
 No HiSeasNet earth station capabilities right now, would
need additional Ku antenna at earth station
Telstar 11N
 No HSN earth station capabilities
 Sketchy in port and near shore
AMC 6
 Availability unknown
 Would require another antenna on shore
 Look angle gets sketchy at the edge
DAC/Modem Cable
 Starting some testing with this, but havent
been able to get it to work as advertised
 Schematic in manuals and on wiki
HiSeasNet Fleet
 C-Band (2.4m dish,
Global coverage)
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Atlantis
Kilo Moana
Knorr
Melville
Revelle
Seward Johnson
Thompson
Langseth
 Ku-Band (North
America coastal
coverage)
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Endeavor (1.2m)
New Horizon (1.2m)
Oceanus (1.5m)
Pelican (1m)
Point Sur (1m)
Walton Smith (1m)
Wecoma (1.5m)
 Ku-band iSCPC
 Atlantic Explorer (1.5m)
Pacific C-band Coverage
Atlantic/Eastern Pacific C-band
Indian Ocean C-band
Ku-Band Coverage (SatMex5)
 Beam 1
 R/V New Horizon
 R/V Point Sur
 R/V Wecoma
 Beam 2
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R/V
R/V
R/V
R/V
Endeavor
Oceanus
Pelican
Walton Smith
DAC Remote Panel
 SeaTel has released
DacRemotePanel
 Runs under Windows
across a serial or IP
connection to an antenna
controller
 Provides extra diagnostic
plots, debug data dumps,
and visibility into the
pedestal control unit.
 Officially unsupported,
but seems to work well
 An upgrade to PCDAC
(but it doesn’t have the
antenna/ship diagram)
Typical Ship
Network
Setup
High Level Network View