TCP customization for httpd

From: Thomas Bohn ([email protected])
Date: Thu Feb 01 2001 - 16:23:22 EST

  • Next message: Craig Partridge: "Re: TCP customization for httpd"

    All:

    Please excuse this post if inappropriate.

    Am seeking any interest in an opportunity to test research
    projects/products in a working satellite environment: am working on a US
    Federal telehealth project in the state of Alaska -- we have a statewide
    network interconnected by a combination of satellite-based and terrestrial
    T1 and sub-DS1 links. We have developed a web-based application for
    digital acquisition of medical imagery in remote areas, with a
    store-and-forward function for referral of medical data to distant
    providers/specialists. The application has been developed on Win2K
    platforms (both client and server) using ColdFusion middleware and SQL
    database backends. I am currently porting the application to Linux.

    We have run into the well-known snag with sat links and TCP: short bursty
    data transfers over TCP don't do so well on high-band/long delay nets.

    I am seeking information related to Open Source TCP stack modifications
    for a web proxy to be placed on the web server LAN in order to accelerate
    the transfer of data out over the WAN to distant client machines. We do
    *NOT* want to modify the stack on the webserver itself, but on an
    accelerating proxy for outlying satnet clients.

    Our network is private, e.g. is NOT connected to the public Internet. We
    are built out on RFC 1918 address space, use Cisco network elements and
    standard transport offerings from Alaska-based space segment providers.

    If anyone on this list has an interest in testing within such an
    environment (whether your solution is commercial or non-commercial) we
    would like to speak with you. We are, as stated, seeking non-commercial
    Open Source variants of standard TCP implementations -- primarily on the
    sender side. Link layer framing is typically standard serial, as
    ATM-based cell protocol offerings in the Alaska market were recently
    pulled by AT&T (e.g. we use HDLC, PPP, etc.)

    I am particularly interested in any TCP mods that have been developed for
    BSD-derived unices.

    Please contact:

    Thomas Bohn
    Alaska Federal Healthcare Access Network (AFHCAN) Project
    c/o AFHCAN Telecom and Networking
    907.729.2266
    [email protected]

    reference: http://www.afhcan.org --> this site in progress of update, so
    please check back more than once in the coming weeks.

    Thanks!



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