guru pradyumna
When a switch is said to be congested?
By guru pradyumna in Networking on Nov 10 2011
  • Sonakshi Singh
    Feb, 2012 19

    When the sum of inputs for a particular output destination exceeds the capacity of that output, then switch gets congested.

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  • guru pradyumna
    Nov, 2011 10

    Since switches have large number of inputs (which may regulary have packets destined for a single output), they likely sites of network congestion

    To reach the an equivalent level of performance, output buffered switches require more buffers and a faster switch fabric than input buffered switches.

    Congestion will fill all buffers. Dead time or spare capacity is required to empty full buffers.

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