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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><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>