{"version":"1.0","provider_name":"Catharsis | Blog","provider_url":"https:\/\/catharsis.net.au\/blog","title":"From 96 to 340 Gbit\/s: Benchmarking a Two-Node DGX Spark Cluster - Catharsis | Blog","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"lkBVIEOpPI\"><a href=\"https:\/\/catharsis.net.au\/blog\/nvidea-dgx-spark-benchmarking\/\">From 96 to 340 Gbit\/s: Benchmarking a Two-Node DGX Spark Cluster<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/catharsis.net.au\/blog\/nvidea-dgx-spark-benchmarking\/embed\/#?secret=lkBVIEOpPI\" width=\"600\" height=\"338\" title=\"&#8220;From 96 to 340 Gbit\/s: Benchmarking a Two-Node DGX Spark Cluster&#8221; &#8212; Catharsis | Blog\" data-secret=\"lkBVIEOpPI\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script>\n\/*! This file is auto-generated *\/\n!function(d,l){\"use strict\";l.querySelector&&d.addEventListener&&\"undefined\"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!\/[^a-zA-Z0-9]\/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret=\"'+t.secret+'\"]'),o=l.querySelectorAll('blockquote[data-secret=\"'+t.secret+'\"]'),c=new RegExp(\"^https?:$\",\"i\"),i=0;i<o.length;i++)o[i].style.display=\"none\";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute(\"style\"),\"height\"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):\"link\"===t.message&&(r=new URL(s.getAttribute(\"src\")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener(\"message\",d.wp.receiveEmbedMessage,!1),l.addEventListener(\"DOMContentLoaded\",function(){for(var e,t,s=l.querySelectorAll(\"iframe.wp-embedded-content\"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute(\"data-secret\"))||(t=Math.random().toString(36).substring(2,12),e.src+=\"#?secret=\"+t,e.setAttribute(\"data-secret\",t)),e.contentWindow.postMessage({message:\"ready\",secret:t},\"*\")},!1)))}(window,document);\n\/\/# sourceURL=https:\/\/catharsis.net.au\/blog\/wp-includes\/js\/wp-embed.min.js\n<\/script>\n","thumbnail_url":"https:\/\/catharsis.net.au\/blog\/wp-content\/uploads\/2026\/05\/NVIDEA-DGX.png","thumbnail_width":866,"thumbnail_height":884,"description":"How we wired two NVIDIA DGX Spark workstations through a MikroTik CRS804-4DDQ switch, discovered four hardware ceilings, and ended up moving 340 Gbit\/s full-duplex between GPUs with the CPU sitting at idle. The setup Two NVIDIA DGX Spark workstations sitting next to each other in the lab, each with an NVIDIA GB10 superchip (Grace ARM [&hellip;]"}