<html><body><div style="color:#000; background-color:#fff; font-family:arial, helvetica, sans-serif;font-size:10pt"><div style="font-family: arial, helvetica, sans-serif; font-size: 10pt; "><span>Hi Diego, </span></div><div style="font-family: arial, helvetica, sans-serif; font-size: 10pt; "><span><br></span></div><div><span><font class="Apple-style-span" size="2">Thanks for the detail explanation, appreciate it.....</font></span></div><div><span><font class="Apple-style-span" size="2"><br></font></span></div><div><span><font class="Apple-style-span" size="2">Actually going for IOT staging next week, thought of getting more advice from profession expert like yours before things started. Well, will know the outcome soon enough..... Thanks again....</font></span></div><div><span><font class="Apple-style-span" size="2"><br></font></span></div><div><span><font class="Apple-style-span" size="2">Regards,</font></span></div><div><span><font
class="Apple-style-span" size="2">Simon</font></span></div><div style="font-family: arial, helvetica, sans-serif; font-size: 10pt; "><br></div><div style="font-size: 10pt; font-family: arial, helvetica, sans-serif; "><div style="font-size: 12pt; font-family: 'times new roman', 'new york', times, serif; "><font size="2" face="Arial"><hr size="1"><b><span style="font-weight:bold;">From:</span></b> "Garcia Del Rio, Diego (Diego)" <diego.garcia_del_rio@alcatel-lucent.com><br><b><span style="font-weight: bold;">To:</span></b> simon lee <simon_lez@yahoo.com>; "alcatel-nsp@puck.nether.net" <alcatel-nsp@puck.nether.net><br><b><span style="font-weight: bold;">Sent:</span></b> Friday, October 21, 2011 1:44 AM<br><b><span style="font-weight: bold;">Subject:</span></b> RE: [alcatel-nsp] 7750SR and Juniper MX480 VPLS full mesh interopt<br></font><br>
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--></style><div><div class="yiv61510558WordSection1"><div class="yiv61510558MsoNormal"><span style="font-size: 11pt; color: rgb(31, 73, 125); font-family: sans-serif; ">HI Simon,</span></div><div class="yiv61510558MsoNormal"><span style="font-size: 11pt; color: rgb(31, 73, 125); font-family: sans-serif; "> </span></div><div class="yiv61510558MsoNormal"><span style="font-size: 11pt; color: rgb(31, 73, 125); font-family: sans-serif; ">Im not sure how to configure the equivalent of spoke or mesh on the juniper, but at least on this 3-node topology, the two mesh-sdps on the 7750 will never allow traffic to pass between them, so you will never have a loop. </span></div><div class="yiv61510558MsoNormal"><span style="font-size: 11pt; color: rgb(31, 73, 125); font-family: sans-serif; "> </span></div><div class="yiv61510558MsoNormal"><span style="font-size: 11pt; color: rgb(31, 73, 125); font-family: sans-serif; ">Also, as long as pc and server are
communicating bidirectionally, you should have mac-learning and no flooding. If only the server is sending traffic and the client’s MAC has never been learnt, the MX(A) would flood to the 7750 and the MX-B. If the MX-B is configured as a mesh as well (which all vplses by default should) then you will not have any further propagation from MX-B to 7750.</span></div><div class="yiv61510558MsoNormal"><span style="font-size: 11pt; color: rgb(31, 73, 125); font-family: sans-serif; "> </span></div><div class="yiv61510558MsoNormal"><span style="font-size: 11pt; color: rgb(31, 73, 125); font-family: sans-serif; ">Unless you’re trying to configure the VPLS on the MX as H-VPLS (with the equivalent of Spoke-sdps in ALU-speak) you should be ok.</span></div><div class="yiv61510558MsoNormal"><span style="font-size: 11pt; color: rgb(31, 73, 125); font-family: sans-serif; "> </span></div><div class="yiv61510558MsoNormal"><span style="font-size: 11pt;
color: rgb(31, 73, 125); font-family: sans-serif; ">Do you actually have a problem or is it something you’re checking in advance?</span></div><div class="yiv61510558MsoNormal"><span style="font-size: 11pt; color: rgb(31, 73, 125); font-family: sans-serif; "> </span></div><div class="yiv61510558MsoNormal"><span style="font-size: 11pt; color: rgb(31, 73, 125); font-family: sans-serif; ">Best Regards,</span></div><div class="yiv61510558MsoNormal"><span style="font-size: 11pt; color: rgb(31, 73, 125); font-family: sans-serif; "> </span></div><div><div class="yiv61510558MsoNormal"><span style="color: rgb(31, 73, 125); font-family: sans-serif; "><img width="276" height="26" id="yiv61510558Picture_x0020_1" src="cid:1.1345388292@web31802.mail.mud.yahoo.com" alt="Corporate-sig-logo"></span><span style="font-size: 11pt; color: rgb(31, 73, 125); font-family: sans-serif; "></span></div><div class="yiv61510558MsoNormal"><b><span style="font-size: 8pt;
color: rgb(31, 73, 125); font-family: sans-serif; ">DIEGO GARCÍA DEL RIO</span></b></div><div class="yiv61510558MsoNormal"><span style="font-size: 8pt; color: rgb(102, 57, 183); font-family: sans-serif; ">ALCATEL-LUCENT</span></div><div class="yiv61510558MsoNormal"><span style="font-size: 8pt; color: rgb(102, 57, 183); font-family: sans-serif; ">IPD PRODUCT MANAGEMENT</span></div><div class="yiv61510558MsoNormal"><span style="font-size: 8pt; color: rgb(102, 57, 183); font-family: sans-serif; ">777 E. Middlefield Rd</span></div><div class="yiv61510558MsoNormal"><span style="font-size: 8pt; color: rgb(102, 57, 183); font-family: sans-serif; ">Mountain View CA 94043</span></div><div class="yiv61510558MsoNormal"><span style="font-size: 8pt; color: rgb(102, 57, 183); font-family: sans-serif; ">Mobile: +1 (415) 439-9420</span></div><div class="yiv61510558MsoNormal"><span style="font-size: 8pt; color: rgb(102, 57, 183); font-family: sans-serif; ">OnNet:
2852-2726</span></div><div class="yiv61510558MsoNormal"><b><span style="font-size: 8pt; color: rgb(102, 57, 183); font-family: sans-serif; ">diego.garcia_del_rio@alcatel-lucent.com</span></b></div></div><div class="yiv61510558MsoNormal"><span style="font-size: 11pt; color: rgb(31, 73, 125); font-family: sans-serif; "> </span></div><div><div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0mm 0mm 0mm;"><div class="yiv61510558MsoNormal"><b><span lang="EN-US" style="font-size: 10pt; font-family: sans-serif; ">From:</span></b><span lang="EN-US" style="font-size: 10pt; font-family: sans-serif; "> alcatel-nsp-bounces@puck.nether.net [mailto:alcatel-nsp-bounces@puck.nether.net] <b>On Behalf Of </b>simon lee<br><b>Sent:</b> Thursday, 20 October 2011 3:23 PM<br><b>To:</b> alcatel-nsp@puck.nether.net<br><b>Subject:</b> [alcatel-nsp] 7750SR and Juniper MX480 VPLS full mesh interopt</span></div></div></div><div class="yiv61510558MsoNormal">
</div><div><div><div class="yiv61510558MsoNormal" style="background:white;"><span style="font-size: 10pt; color: black; font-family: sans-serif; ">Hi All,</span></div></div><div><div class="yiv61510558MsoNormal" style="background:white;"><span style="font-size: 10pt; color: black; font-family: sans-serif; "> </span></div></div><div><div class="yiv61510558MsoNormal" style="background:white;"><span style="font-size: 10pt; color: black; font-family: sans-serif; ">Got question regarding the following VPLS setup:</span></div></div><div><div class="yiv61510558MsoNormal" style="background:white;"><span style="font-size: 10pt; color: black; font-family: sans-serif; "> </span></div></div><div><div class="yiv61510558MsoNormal" style="background:white;"><span style="font-size: 10pt; color: black; font-family: sans-serif; ">7750SR(A)
<--------------->MX480(A)<---------------->MX480(B)<----------------->7750SR(A)</span></div></div><div><div class="yiv61510558MsoNormal" style="background:white;"><span style="font-size: 10pt; color: black; font-family: sans-serif; "> mesh-sdp mesh-sdp</span></div></div><div><div class="yiv61510558MsoNormal" style="background:white;"><span style="font-size: 10pt; color: black; font-family: sans-serif; "> </span></div></div><div><div class="yiv61510558MsoNormal" style="background:white;"><span style="font-size: 10pt; color: black; font-family: sans-serif; ">- All PE suppose to be fully mesh in a triangular formation. </span></div></div><div><div class="yiv61510558MsoNormal"
style="background:white;"><span style="font-size: 10pt; color: black; font-family: sans-serif; ">- 7750SR VPLS service configured using mesh sdp with the 2 Juniper MX480.</span></div></div><div><div class="yiv61510558MsoNormal" style="background:white;"><span style="font-size: 10pt; color: black; font-family: sans-serif; ">- Server at MX480(A), while client PC at 7750SR.</span></div></div><div><div class="yiv61510558MsoNormal" style="background:white;"><span style="font-size: 10pt; color: black; font-family: sans-serif; "> </span></div></div><div><div class="yiv61510558MsoNormal" style="background:white;"><span style="font-size: 10pt; color: black; font-family: sans-serif; ">Question is, when client PC wish to establish connection with server, will there be a loop or mac-move trigger on 7750SR? Will the mesh-mesh violation between MX480(B) and 7750SR take place hence deny any traffic traverse via that LSP tunnel and instead
traffic will proceed thru MX480(A)? </span></div></div><div><div class="yiv61510558MsoNormal" style="background:white;"><span style="font-size: 10pt; color: black; font-family: sans-serif; "> </span></div></div><div><div class="yiv61510558MsoNormal" style="background:white;"><span style="font-size: 10pt; color: black; font-family: sans-serif; ">Appreciate if anyone could help and comment.... Thanks.</span></div></div><div><div class="yiv61510558MsoNormal" style="background:white;"><span style="font-size: 10pt; color: black; font-family: sans-serif; "> </span></div></div><div><div class="yiv61510558MsoNormal" style="background:white;"><span style="font-size: 10pt; color: black; font-family: sans-serif; ">Regards,</span></div></div><div><div class="yiv61510558MsoNormal" style="background:white;"><span style="font-size: 10pt; color: black; font-family: sans-serif; ">Simon</span></div></div><div><div class="yiv61510558MsoNormal"
style="background:white;"><span style="font-size: 10pt; color: black; font-family: sans-serif; "> </span></div></div><div><div class="yiv61510558MsoNormal" style="background:white;"><span style="font-size: 10pt; color: black; font-family: sans-serif; "> </span></div></div><div><div class="yiv61510558MsoNormal" style="background:white;"><span style="font-size: 10pt; color: black; font-family: sans-serif; "> </span></div></div></div></div></div></div><br><br></div></div></div></body></html>