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content/articles/2021-03-27-coloclue-vpp.md
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@ -8,7 +8,7 @@ title: 'Case Study: VPP at Coloclue, part 1'
## Introduction
Coloclue AS8283 operates several Linux routers running Bird. Over the years, the performance of their previous hardware platform (Dell R610) has deteriorated, and they were up for renewal. At the same time, network latency/jitter has been very high, and variability may be caused by the Linux router hardware, their used software, the inter-datacenter links, or any combination of these. The routers were replaced with relatively modern hardware. In a [previous post]({% post_url 2021-02-27-coloclue-loadtest %}), I looked into the links between the datacenters, and demonstrated that they are performing as expected (1.41Mpps of 802.1q ethernet frames in both directions). That leaves the software. This post explores a replacement of the Linux kernel routers by a userspace process running VPP, which is an application built on DPDK.
Coloclue AS8283 operates several Linux routers running Bird. Over the years, the performance of their previous hardware platform (Dell R610) has deteriorated, and they were up for renewal. At the same time, network latency/jitter has been very high, and variability may be caused by the Linux router hardware, their used software, the inter-datacenter links, or any combination of these. The routers were replaced with relatively modern hardware. In a [previous post]({{< ref "2021-02-27-coloclue-loadtest" >}}), I looked into the links between the datacenters, and demonstrated that they are performing as expected (1.41Mpps of 802.1q ethernet frames in both directions). That leaves the software. This post explores a replacement of the Linux kernel routers by a userspace process running VPP, which is an application built on DPDK.
### Executive Summary