A guide for working with MTU and MPLS in a Wireless ISP
MPLS/VPLS MTU math can be complicated and is always a struggle to unravel.
To make it a little easier and put it into a WISP context, I designed this cheat sheet on 8.5 x 11 (to print for those that actually trust printers) and used common WISP equipment like MikroTik routers, Ubnt and Cambium radios with real world MTU values.
The MTU values are displayed in layers to make it easier to see where each value fits.
These values are meant to be a starting point by representing the minimum values required for MPLS/VPLS with a single 802.1q VLAN tag.
In general, after going through hundreds of WISP migrations, I’ve found it to be easier to implement the minimum values required when working on a production WISP to identify the effective lowest MTU in the network.
Once the network equipment has been modified and has been running in a stable way on the minimum values, then higher values can be considered and implemented (now that the effective lowest MTU on the network is documented)
It seems like ages ago that we blocked out time in our schedules to fly to technical conferences and immerse ourselves with great people and content for an entire week.
In reality, it’s only been a few months but 2020 has made it seem like a lifetime.
However, those of us in tech are quick to adapt and virtual conferences are now a thing.
For the fixed wireless industry, in-person conferences are critical because most of the attendees are entrepreneurs.
For a small business owner in tech, going to a show is one of the best ways to evaluate content and business opportunities needed to stay competitive in a short amount of time.
The first virtual conference for Wireless ISPs
Thankfully, due to some amazing efforts and collaboration in the WISP industry – led by Preseem and supported by WISPA, we are about to kick off the first virtual conference for the fixed wireless industry at 10 AM Eastern on July 28th, 2020.
An enormous amount of work has gone into planning and preparation to replicate the experience of an in-person technical conference as much as possible.