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[ns] Diffserv:Can we design Robust TCP



hi all,
    I know in diffserv network,when congestion
happens,
TCP will suffer bandwidth lost than UDP.The reason is
TCP minishs its congestion window.
    Can we design robust TCP:When congestion happens
TCP minishs its congestion window to (rtt*bandwidth of
reservation)?

    Thanks
    JieZhang



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