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[ns] Link util



Does anybody know how to get link util stats on a bottleneck link
using several end servers and clients with the following queue monitors on 
the bottleneck buffers:

# next, I want a queue monitor on both queues going in the direction
    # of the test flow
    set qt1 [open $q1filename w]
    set qt2 [open $q2filename w]

    set qm1 [$ns monitor-queue $n(0) $n(1) $qt1]
    set qm2 [$ns monitor-queue $n(1) $n(0) $qt2]

    set link1 [$ns link $n(0) $n(1)]
    set q1 [$link1 queue]
    set link2 [$ns link $n(1) $n(0)]
    set q2 [$link2 queue]

    $link1 init-monitor $ns $qt1 0.05
    $link2 init-monitor $ns $qt2 0.05


    #set qm1 [$link1 set qMonitor_]
    #set qm2 [$link2 set qMonitor_]
}
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