What Is Haystack?

The Haystack Observatory at the Massachusetts Institute of Technology (MIT) is one of the pioneers in the field of VLBI in radio astronomy. VLBI is a high-resolution imaging technique used in radio astronomy. VLBI techniques involve using multiple radio telescopes simultaneously in an array to record data, which is then stored on magnetic tape and shipped to a central processing site for analysis. Using high-bandwidth networks, electronic transmission of VLBI data (known as “e-VLBI”) from this worldwide array of telescopes is now becoming a reality.


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t is a cakebox? It is a small, inexpensive PC running Linux. It is configured such that, when you plug it into a DHCP-enabled Ethernet port and give it power, it registers its presence with an LDAP server where it logs its current IP address so you can “find” it. You can then connect to it remotely and run a series of network utilities (like Iperf, traceroute, and pchar). Cakeboxes were developed by Internet2 to test H.323 video conferencing capabilities and have been used for a variety of other end-to-end performance tests. Instructions on “building” a cakebox are available to member institutions upon request.
DHCP-enabled Ethernet port and give it power, it registers its presence with an LDAP server where it logs its current IP address so you can “find” it. You can then connect to it remotely and run a series of network utilities (like Iperf, traceroute, and pchar). Cakeboxes were developed by Internet2 to test H.323 video conferencing capabilities and have been used for a variety of other end-to-end performance tests. Instructions on “building” a cakebox are available to member institutions upon request.