<div dir="ltr"><div class="gmail_default" style="font-family:tahoma,sans-serif">Hi Jorge,</div><div class="gmail_default" style="font-family:tahoma,sans-serif"><br></div><div class="gmail_default" style="font-family:tahoma,sans-serif">
Thanks for you response, please keep me in-line,</div><div class="gmail_default" style="font-family:tahoma,sans-serif"><br></div><div class="gmail_default" style="font-family:tahoma,sans-serif">Regards,</div><div class="gmail_default" style="font-family:tahoma,sans-serif">
<br></div><div class="gmail_default" style="font-family:tahoma,sans-serif">Thedin</div><div class="gmail_extra"><br><br><div class="gmail_quote">On Wed, Jan 29, 2014 at 7:24 AM, Rabadan, Jorge (Jorge) <span dir="ltr"><<a href="mailto:jorge.rabadan@alcatel-lucent.com" target="_blank">jorge.rabadan@alcatel-lucent.com</a>></span> wrote:<br>
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<div>Hi Thedin, </div>
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<span style="font-weight:bold">From: </span>Thedin Guruge <<a href="mailto:thedin@gmail.com" target="_blank">thedin@gmail.com</a>><br>
<span style="font-weight:bold">Date: </span>Tuesday, January 28, 2014 at 2:17 AM<br>
<span style="font-weight:bold">To: </span>"<a href="mailto:alcatel-nsp@puck.nether.net" target="_blank">alcatel-nsp@puck.nether.net</a>" <<a href="mailto:alcatel-nsp@puck.nether.net" target="_blank">alcatel-nsp@puck.nether.net</a>><br>
<span style="font-weight:bold">Subject: </span>[alcatel-nsp] PBB and IGMP Snooping<br>
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<div style="font-family:tahoma,sans-serif">Hi All,</div>
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<div style="font-family:tahoma,sans-serif">when IGMP snooping is enabled on an i-vpls instance, is it possible to activate 'send queries' towards the b-vpls?</div>
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<div>'send-queries’ is configured under saps and sdp-bindings. On the i-vpls you can’t active send-queries to be sent to the b-vpls.</div>
<div>You will need a real querier.</div><div class="im">
<div><br></div></div></div></blockquote><div class="gmail_default" style="font-family:tahoma,sans-serif">[TG] Thanks for confirming, w.r.t our setup we could rely on an upstream querier when 'b-sdp' where the MFIB entry is pointed to gets changed due to far-end failure, I've noted that in such case, the previous MFIB will still remain until aged out, but new MFIB entries get created when reports are received on the new sdp due to queries, until such time, traffic will be flooded.</div>
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<div style="font-family:tahoma,sans-serif">Also, when b-vpls's FDB state changes, does it propagate to i-vpls MFIB? </div>
<div style="font-family:tahoma,sans-serif">i.e. If shared mac (mc-lag) to sdp mappings on b-vpls changes (via mac-notification), can that propagate into to the i-vpls MFIB??</div>
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</div><div>Mac-notification sends a message with the shared sap-bmac as the source address from the new active PE, so that the remote PEs can update their FDBs. This mechanism allows to avoid black-holes for unicast traffic. For multicast traffic there is no blackhole
since the traffic is flooded into the (*,G) tree… do you have any issue?</div>
<div><br></div></div></blockquote><div class="gmail_default" style="font-family:tahoma,sans-serif">[TG] Yep i understand, the intent we had here was to reduce flooding when MFIB entry becomes invalid due to far-end PE mc-lag failover, i.e. when b-vpls FDB is updated if that could trigger the MFIB to be updated as well, then the temporary flooding (until MFIB is aged out) could be prevented. Agreed flooding is better than blackholing, but with increased no. of services, flooding traffic volumes can be substantial.</div>
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<div><font face="tahoma,sans-serif">Regards,</font></div>
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<font face="tahoma,sans-serif">Thedin Guruge</font> </font></span></div>
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</blockquote></div><br><br clear="all"><div><br></div>-- <br><div><font face="tahoma, sans-serif">Regards,</font></div><div><font face="tahoma, sans-serif"><br></font></div><font face="tahoma, sans-serif">Thedin Guruge</font>
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