SMART SFP - Mini Linux System on a Stick (literally)

Today I'm taking a look at the Plumspace Smart SFP - a dual core ARM Cortex A53 stuffed inside a 1310nm SFP optical transceiver, which can deal with packet flows at line rate*. Quite a neat little thing, with plenty of use cases. Plumspace Smart SFPs: https://plumspace.com/products/smart-sfp/ Command on my blog: https://www.apalrd.net/posts/2025/network_smartsfp/ Support me on Ko-Fi or buy my merch: https://ko-fi.com/apalrd Feel free to chat about my upcoming projects on Discord! https://discord.gg/xJsaEukAr4 Follow me on Mastodon: https://hachyderm.io/@apalrd Timestamps: 00:00 - Introduction 00:44 - SFP? 04:05 - Bridge Packet Capture 05:51 - Bridge Traffic Analysis 08:18 - Performance 09:36 - NAT64 11:39 - VPN Gateway 13:42 - Thoughts