EVN e-VLBI report
=================

Current status:
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Now connected: Mc, On, Tr, Wb, Jb, Cm/Da at 1 Gbps
					Mh at 1+ Gbps
               Ar at 155 Mbps
               TIGO at 95 Mbps
					Sh at 1 Gbps/ 622 Mbps
					Australia at 3 * 1 Gbps

Lightpaths from all European stations except On and Mh, and from
Australia and China.

Connectivity:

Large development effort in UDP and CTCP-based transfer has led to
reliable sustained 512 Mbps transfers from Sh and Australian
telescopes, and has made 64 Mbps from Ar (again) and TIGO possible.

-Ar limited to 64 Mbps, but will upgrade soon
-TIGO (with 5 Mbps restriction lifted) can sustain 64 Mbps
-256 Mbps has been operational mode for European e-VLBI for most of this year.
-512 Mbps (with TCP) has been demonstrated with 6 European stations,
operational 512 Mbps mode will be UDP-based 
-1024 Mbps mode green leds demonstrated from Tr (4% packets dropped at sending
side, padded with dummy packets at receiving side)

Continuing with mixed test/science e-VLBI runs at regular intervals
throughout the year. The ToO e-VLBI observation of SN2007 led to first EVN
astronomers' telegram ever. The first spectral mode e-VLBI session was
conducted this fall.

Many improvements have been made to e-VLBI operations at stations and
correlator and to correlator control code. 12 out of 16 Mark5As at JIVE
have been equipped with new motherboards/dual CPUs/power supplies, as
have the Mark5s at all European e-VLBI stations (except On) and Sh. New
networking equipment has been installed at JIVE, connectivity at this
moment is 8 * 1 Gbps lightpaths and 1 * 10 Gbps switched.


Near future:
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Ef should be online very soon, greatly enhancing the sensitivity of the
e-EVN. Implementation of e-VLBI in the Mark5B code in ongoing, as is
the integration of Mark5B in the correlator system (first
autocorrelations two weeks ago).