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It depends on the forwarding strategy. Some strategies (e.g. best route) simply follow the cost assigned by the routing protocol or the operator. Others (e.g., the new ASF strategy) will probe the available routes in the FIB and pick the best one based on
RTT.
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<div class="">However, if the link to the next hop fails), nfd will remove the entry. So that one won’t be used any strategy.
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Lan</div>
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<div class="">On Nov 29, 2016, at 10:43 AM, Mohammad Alhowaidi <<a href="mailto:malhowaidi@gmail.com" class="">malhowaidi@gmail.com</a>> wrote:</div>
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Thank you for the reply, so we NFD can't do that in a dynamic way. What if the route status change after a while, then NFD will not change the route to select the best-route, right?<br class="">
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Thanks,<br class="">
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Mohammad<br class="">
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<div class="gmail_quote">On Mon, Nov 28, 2016 at 9:16 PM, Hila Ben Abraham <span dir="ltr" class="">
<<a href="mailto:hila@wustl.edu" target="_blank" class="">hila@wustl.edu</a>></span> wrote:<br class="">
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<div dir="ltr" class="">Hi Mohammad,
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<div class="">The forwarding strategy is the one making the next hop selection. Under the assumption that you are using the default best-route strategy, the next hop would be determined by the face cost and not by the link latency. According to my understanding,
If both links have the same cost then the strategy would choose the first face listed in the FIB.</div>
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<div class="">You can use: </div>
<div class="">nfdc register -c <cost1> /ndn udp://<a href="http://10.71.102.53/" target="_blank" class="">10.71.102.53</a></div>
<div class="">nfdc register -c <cost2> /ndn udp://<a href="http://10.71.103.63/" target="_blank" class="">10.71.103.63</a><br class="">
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<div class="">with cost1>cost2 to achieve your expected behavior when using best-route.</div>
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<div class="">Hila</div>
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<div dir="ltr" class="">On Mon, Nov 28, 2016 at 8:34 PM Mohammad Alhowaidi <<a href="mailto:malhowaidi@gmail.com" target="_blank" class="">malhowaidi@gmail.com</a>> wrote:<br class="">
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<div class="m_6193705818493415591gmail_msg">Hello,<br class="m_6193705818493415591gmail_msg">
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I setup the nfd to forward the traffic through the following route:<br class="m_6193705818493415591gmail_msg">
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nfdc register /ndn udp://<a href="http://10.71.102.53/" class="m_6193705818493415591gmail_msg" target="_blank">10.71.102.53</a><br class="m_6193705818493415591gmail_msg">
nfdc register /ndn udp://<a href="http://10.71.103.63/" class="m_6193705818493415591gmail_msg" target="_blank">10.71.103.63</a><br class="m_6193705818493415591gmail_msg">
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<div class="m_6193705818493415591gmail_msg">The first one has a higher latency but it keep forward through the first one, shouldn't it choose the best route ( the second one since it has lower latency )?<br class="m_6193705818493415591gmail_msg">
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<div class="m_6193705818493415591gmail_msg">Thanks,<br class="m_6193705818493415591gmail_msg">
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<div class="m_6193705818493415591gmail_msg">Mohammad<br class="m_6193705818493415591gmail_msg">
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