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<div><font face="Calibri,sans-serif">Hi Junxiao,</font></div>
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<div>Ok, that makes sense. This was sort of an extreme case, though. What about for two hosts likely to have "equal" cost (e.g., UCLA and UA, for REMAP) that have different performance in practice for a given subnamespace that is not known a priori?</div>
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<div>Jeff </div>
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<span style="font-weight:bold">From: </span>Junxiao Shi <<a href="mailto:shijunxiao@email.arizona.edu">shijunxiao@email.arizona.edu</a>><br>
<span style="font-weight:bold">Date: </span>Sun, 29 Mar 2015 09:42:35 -0700<br>
<span style="font-weight:bold">To: </span>Jeff Burke <<a href="mailto:jburke@remap.ucla.edu">jburke@remap.ucla.edu</a>><br>
<span style="font-weight:bold">Cc: </span>"<a href="mailto:nfd-dev@lists.cs.ucla.edu">nfd-dev@lists.cs.ucla.edu</a>" <<a href="mailto:nfd-dev@lists.cs.ucla.edu">nfd-dev@lists.cs.ucla.edu</a>><br>
<span style="font-weight:bold">Subject: </span>Re: [Nfd-dev] Why don't additional routes impact performance?<br>
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<div dir="ltr">Hi Jeff
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<div>With default configuration, you are using best-route v3 strategy.</div>
<div>Therefore, <b>this behavior is by design</b>.</div>
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<div>Please try: register BASEL route with <b>higher cost</b> than REMAP or CAIDA route.</div>
<div>When a route with lower cost is inserted, traffic shall be switched immediately to the new route.</div>
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<div>Yours, Junxiao</div>
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<div class="gmail_quote">On Sun, Mar 29, 2015 at 9:21 AM, Burke, Jeff <span dir="ltr">
<<a href="mailto:jburke@remap.ucla.edu" target="_blank">jburke@remap.ucla.edu</a>></span> wrote:<br>
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<div>Hi,</div>
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<div>I am running some tests with ndncon and am curious about the following:</div>
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<div>Steps to reproduce:</div>
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<div>- Start ndncon publisher with route through REMAP node. </div>
<div>- On consumer node,</div>
<div><span style="white-space:pre-wrap"></span>- Restart nfd</div>
<div><span style="white-space:pre-wrap"></span>- Use nfdc to register udp route for / through university of basel</div>
<div><span style="white-space:pre-wrap"></span>- Start consumer and observe performance (audio dropouts due to jitter buffer issues)</div>
<div><span style="white-space:pre-wrap"></span>- While ndncon is running, use nfdc to register udp route for / through REMAP, CAIDA, or another closer hub</div>
<div><span style="white-space:pre-wrap"></span>- No change in performance at the consumer and no change in traffic flow on ndnmap... why?</div>
<div><span style="white-space:pre-wrap"></span>- Quit ndncon and restart</div>
<div><span style="white-space:pre-wrap"></span>- Still no change </div>
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<div>This behavior is not intuitive. I would expect that by default NFD would be issuing interests to both faces, and/or that it would be probing performance new faces become available for a given route. Does a different strategy need to be used to get
this behavior? </div>
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<div>On the consumer, I am running the latest version of NFD cloned from github this morning, with a default configuration (I think). </div>
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<div>Thanks!</div>
<span class="HOEnZb"><font color="#888888">
<div>Jeff</div>
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