As I’ve recently had the opportunity to start working with Cumulus Linux (running on a Dell S6000-ON switch), in this post I wanted to share a few concepts I’ve learned about networking with Cumulus Linux.
I’m not a networking guru, but I’m also not new to configuring network equipment—I’ve configured GRE tunnels on a Cisco router, set up link-state tracking, and enabled jumbo frames on a Nexus 5000 (to name a few examples). I’ve worked with Cisco gear, HP equipment, Dell PowerConnect switches, and Arista EOS-powered switches. However, as a full distribution of Linux, networking with Cumulus Linux is definitely different from your typical network switch. To help make the transition easier, I’ll share here a few things I’ve learned so far.
It’s important to understand that Cumulus Linux isn’t just a “Linux-based network OS”—it’s actually a full Linux distribution (based on Debian). Lots of products are Linux-based these days, but often hide the full power of Linux behind some sort of custom command-line interface (CLI) or shell. Not so in this case! I think this fact is perhaps a bit easy to overlook, but it shapes everything that happens in Cumulus Linux:
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This last weekend I set a toilet, replaced five faucets, and put together the beginnings of a workbench. No, I’ve not resorted to working in “the trades,” to make a living — I’ve been slowly but surely finishing and refashioning our “country house” to better accommodate the time we spend “in the country.” One of the faucets, and the toilet, were set in a new bathroom; the pipes had been stubbed up but not finished — which means there were no valves. After the adventure of finding the main water cutoff for the house (it’s buried under about three inches of dirt along one side of the foundation), I had to cut off the plugs and install valves.
The pipes in the country house are PEX. So are the pipes in the house we just moved from. In fact, so are the pipes in the house in Raleigh we just moved to. Odd thing, that — three houses, in different places, at different price levels, and they all use PEX piping. In fact, walking through some random retail store last week, I noticed they had PEX stub outs in a bathroom there, too.
Imagine walking into an apartment and Continue reading
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