[comm] Communications meeting Wednesday

James Robnett jrobnett at nrao.edu
Wed Aug 25 13:14:20 EDT 2010


    I'd suggest not having it and rescheduling for next week.

    If we have it today somebody needs to pipe up pretty quick.

    The main issue is the CV/AOC router performance.

    I've talked to Dan Lunceford and we've done some more tests.
They have *almost* the same router connecting them to the outside world
as we have connecting to them.

    Their router has the G2 (2nd generation) controller card where
as ours has the G1.  The main difference between the two is the
G2 has twice the bandwidth and packet per second handling capability.

    When running iperf from their network to UNM across their 7206
they get 810mit/s.  Considering there's a 130mbit/s background rate
that's 940mbit/s to UNM.

    My understanding is the G2 card costs around $12K.  We may want
to consider going that route rather than whole new routers.

James


Derek Hart wrote:
> Gene is out doing some dam work at his house the rest of this week
> and will have limited access both to email and phone -- not sure if
> he'll be holding the meeting or not.
> 
> 
> -D-
> 



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