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Use the scheduleEvent method of the ns-3 scheduler:
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<div class="">Thanks,</div>
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<div>Spyridon (Spyros) Mastorakis, Ph.D.<br class="">
Assistant Professor<br class="">
Computer Science Department<br class="">
University of Nebraska, Omaha<br class="">
Peter Kiewit Institute Room 175A<br class="">
Associate Editor, IEEE Internet of Things Journal<br class="">
Website: https://sites.google.com/site/spyridonmastorakis</div>
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<div class="">On Jun 14, 2021, at 5:39 PM, Prajjwal Singh <csb17053@tezu.ac.in> wrote:</div>
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<div dir="auto" class="">Thank you very much. Junxio.
<div dir="auto" class="">I am actually looking for ways to delay the sending of some interests (as per some custom field).</div>
<div dir="auto" class="">How can I achieve this? </div>
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<div dir="ltr" class="gmail_attr">On Mon, 14 Jun 2021, 19:09 Junxiao Shi, <<a href="mailto:shijunxiao@email.arizona.edu" class="">shijunxiao@email.arizona.edu</a>> wrote:<br class="">
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<div dir="ltr" class="">Hi Prajjwal
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<div class="">Congestion control algorithm accesses TX queue length via Transport::getSendQueueLength function.</div>
<div class="">The implementation relevant to ns-3 is here:</div>
<div class=""><a href="https://urldefense.proofpoint.com/v2/url?u=https-3A__github.com_named-2Ddata-2DndnSIM_ndnSIM_blob_28da73c868ad7444dba7a754fb77a41f6ca7cb07_model_ndn-2Dnet-2Ddevice-2Dtransport.cpp-23L85-2DL96&d=DwMFaQ&c=Cu5g146wZdoqVuKpTNsYHeFX_rg6kWhlkLF8Eft-wwo&r=eI5Bh74ovG-uIXQ5ksQETSPgRFzmJXjIZXneCqw580E&m=GehPQRpCJBlTe0EVxVxLSCNciGMlYdGFIjhdqNB5Q2U&s=GmwOh1jV6B_gTw9AqoZtcGOOTNiLkTdVh5Txhus51g8&e=" target="_blank" rel="noreferrer" class="">https://github.com/named-data-ndnSIM/ndnSIM/blob/28da73c868ad7444dba7a754fb77a41f6ca7cb07/model/ndn-net-device-transport.cpp#L85-L96</a><br class="">
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<div class="">You cannot introduce delays in a queue.</div>
<div class="">Instead:</div>
<div class="">If you want to create an interval between transmitting two packets, set the PointToPointNetDevice/DataRate attribute. This enforces a packet sending speed, such that the NetDevice would not dequeue faster than that.</div>
<div class="">If you want to create a delay between transmitting a packet and its receipt, set a link delay on PointToPointChannel/Delay attribute.</div>
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<div class="">Yours, Junxiao</div>
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<div dir="ltr" class="gmail_attr">On Fri, Jun 11, 2021 at 12:47 PM Prajjwal Singh <<a href="mailto:csb17053@tezu.ac.in" target="_blank" rel="noreferrer" class="">csb17053@tezu.ac.in</a>> wrote:<br class="">
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<div class="">Hello everybody,</div>
<div class="">I have read in the NFD's developers guide, under the Congestion Control section, that each NFD face monitors its outgoing queue for congestion.</div>
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<div class="">Please refer me to the code implementation of these outgoing Queues.</div>
<div class="">Also, how can one introduce delays for outgoing interest packets from these queues.</div>
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<div class="">Thanking you in advance</div>
<div class="">Prajjwal Singh<br class="">
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