CCIE Pursuit Blog

May 25, 2009

Core Knowledge Question of the Day: 25 May 2009

Name at least three of the four types of congestion management queueing offered in Cisco router QoS.

Highlight for answer: FIFO (first-in, first-out), Weighted fair queueing (WFQ), Custom queueing (CQ), Priority queueing (PQ)

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3 Comments »

  1. can you comment the existence of such abbreviations as wrr, srr, mdrr, cbwfq and llq? 🙂
    if i am misunderstanding the question, please correct me

    Comment by invalidCCIE — May 25, 2009 @ 10:02 am | Reply

  2. @invalidCCIE – Good point. I have rewritten the question to specify congestion management on Cisco routers. The link that I pulled this question from is:

    http://www.cisco.com/en/US/docs/ios/qos/configuration/guide/congstion_mgmt_oview_ps6350_TSD_Products_Configuration_Guide_Chapter.html#wp1000872

    Comment by cciepursuit — May 25, 2009 @ 1:06 pm | Reply

  3. still somewhat uncertain 🙂
    i think it’s better to ask about *software* queues, because cisco routers (in general) can have hardware queues like mdrr or something like that (for example take a look at gsr series, or 7600 series :))

    Comment by invalidCCIE — May 26, 2009 @ 11:43 pm | Reply


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