<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=us-ascii"><meta name=Generator content="Microsoft Word 15 (filtered medium)"><style><!--
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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='color:#1F497D'>Based on what you described it seems more to be the case that the FLS648 is dropping throughput from ~70 Mbps to 20 Mbps (I presume you mean bits, not bytes when you write MB/s).<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>How do you know that the remote speed server is not maxed out? Or that your uplink is not maxed out?<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Frank<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b>From:</b> foundry-nsp [mailto:foundry-nsp-bounces@puck.nether.net] <b>On Behalf Of </b>nethub@gmail.com<br><b>Sent:</b> Thursday, February 12, 2015 11:38 AM<br><b>To:</b> foundry-nsp@puck.nether.net<br><b>Subject:</b> [f-nsp] MLX throughput issues<o:p></o:p></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>We are having a strange issue on our MLX running code 5.6.00c. We are encountering some throughput issues that seem to be randomly impacting specific networks.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>We use the MLX to handle both external BGP and internal VLAN routing. Each FLS648 is used for Layer 2 VLANs only.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>From a server connected by 1 Gbps uplink to a Foundry FLS648 switch, which is then connected to the MLX on a 10 Gbps port, running a speed test to an external network is getting 20MB/s.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Connecting the same server directly to the MLX is getting 70MB/s.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Connecting the same server to one of my customer's Juniper EX3200 (which BGP peers with the MLX) also gets 70MB/s.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Testing to another external network, all three scenarios get 110MB/s.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>The path to both test network locations goes through the same IP transit provider.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>We are running NI-MLX-MR with 2GB RAM, NI-MLX-10Gx4 connect to the Foundry FLS648 by XFP-10G-LR, NI-MLX-1Gx20-GC was used for directly connecting the server. A separate NI-MLX-10Gx4 connects to our upstream BGP providers. Customer’s Juniper EX3200 connects to the same NI-MLX-10Gx4 as the FLS648. We take default routes plus full tables from three providers by BGP, but filter out most of the routes.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>The fiber and optics on everything look fine. CPU usage is less than 10% on the MLX and all line cards and CPU usage at 1% on the FLS648. ARP table on the MLX is about 12K, and BGP table is about 308K routes.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Any assistance would be appreciated. I suspect there is a setting that we’re missing on the MLX that is causing this issue.<o:p></o:p></p></div></body></html>