<html><head><style type='text/css'>p { margin: 0; }</style></head><body><div style='font-family: times new roman,new york,times,serif; font-size: 12pt; color: #000000'>Thanks Ryan,<br><br>Here's the thing I need that might be hard, I need to be able to satisfy these assertions: <br><br>For source networks A, B, and C, dest-node A is preferred, B is a usable standby, but dest-node C should never be tried (even if it's up).<br>For source networks C, D, and E, dest-node C is preferred, B is a usable standby, but dest-node A should never be tried (even if it's up).<br><br>Do you think HAProxy is up to that?<br><br><div><span name="x"></span>--<br>David L. Willson<br>Teacher, Engineer, Evangelist<br>RHCE+Satellite CCAH Network+ A+ Linux+ LPIC-1 UbuntuCP NovellCLA<br>Mobile 720-333-LANS(5267)<br>http://sofree.us<br><br>This is a good time for a r3VOLution.<span name="x"></span><br></div><br><hr id="zwchr"><blockquote style="border-left:2px solid #1010FF;margin-left:5px;padding-left:5px;color:#000;font-weight:normal;font-style:normal;text-decoration:none;font-family:Helvetica,Arial,sans-serif;font-size:12pt;"><style><!--
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--></style><div class="WordSection1"><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#244061">David,</span></p><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#244061">While I do not profess to be an HAProxy expert, we have used it to check most of the boxes on your list in the past. </span></p><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#244061">You can use the weight parameter on your backend servers to specify where the traffic is preferred – a value of 256 for your primary and 1 as your failover should accomplish what you are looking for. </span></p><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#244061">You can also write IP based ACL’s to set traffic from each network to specific backends. </span></p><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#244061"> </span></p><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#244061">There are some limitations – HAProxy will only support TCP, and I have had issues with some ssl. </span></p><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#244061"> </span></p><div><p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Calibri","sans-serif";color:black">Regards,</span></b><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#244061"><br></span><b><span style="font-size:10.0pt;font-family:"Calibri","sans-serif";color:black">Ryan Naef</span></b><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#244061"><br><br></span><span style="font-size:10.0pt;font-family:"Calibri","sans-serif";color:#244061"></span></p></div><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#244061"> </span></p><div><div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in"><p class="MsoNormal" style="margin-left:.5in"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> clue-bounces@cluedenver.org [mailto:clue-bounces@cluedenver.org] <b>On Behalf Of </b>David L. Willson<br><b>Sent:</b> Thursday, October 30, 2014 7:43 AM<br><b>To:</b> CLUE's mailing list<br><b>Subject:</b> [clue] load-balancing</span></p></div></div><p class="MsoNormal" style="margin-left:.5in"> </p><div><p class="MsoNormal" style="margin-left:.5in"><span style="color:black">I am looking for an intelligent load-balancer. It needs to understand proximity / preference. I want to be able to send all the clients from (these networks) to this node, unless it's down, or fully-loaded, or otherwise uninterested in new connections, then send them to this node, instead.<br><br>I don't mind if I have to setup the preference rules (which networks prefer which servers), but it would be cool if I didn't have to.</span></p><p style="margin-left:.5in"><span style="color:black"> </span></p><p style="margin-left:.5in"><span style="color:black">I'd *strongly* prefer a solution that doesn't generate vendor lock-in. ie: I don't mind paying for it, but I'd like to preserve the freedom to choose *who* to pay.</span></p><p style="margin-left:.5in"><span style="color:black"> </span></p><p style="margin-left:.5in"><span style="color:black">It would be really great if someone that has a lot of experience with HAProxy confidently said something like, "Oh yeah, it does all that. Just do this and this, and that, and it works great, lasts a long time, and you'll lose weight doing it."</span></p><p style="margin-left:.5in"><span style="color:black"> </span></p><div><p class="MsoNormal" style="margin-left:.5in"><span style="color:black">--<br>David L. Willson<br>Teacher, Engineer, Evangelist<br>RHCE+Satellite CCAH Network+ A+ Linux+ LPIC-1 UbuntuCP NovellCLA<br>*killed my phone on Sunday. This space for rent.*<br><a href="http://sofree.us" target="_blank">http://sofree.us</a><br><br>This is a good time for a r3VOLution.</span></p></div><p class="MsoNormal" style="margin-left:.5in"><span style="color:black"> </span></p></div></div><br>_______________________________________________<br>clue mailing list: clue@cluedenver.org<br>For information, account preferences, or to unsubscribe see:<br>http://cluedenver.org/mailman/listinfo/clue</blockquote><br></div></body></html>