Firmware updates on C9130AXI-B & friends
The GUI based updates suck and never work. In place upgrades suck and never work. I can’t imagine trying to do this with an HA scenario. I do an outage-requiring Continue Reading…
Category: Networking
Getting 400gig interfaces working on the Arista 7280CR3-36S
TL;DR: you have to give up the adjacent 200gig port to use 400gig on the 7280CR3. If that’s okay, and you want to proceed with converting eth33/1 and/or eth35/1 to Continue Reading…
Uploading custom SSL to Opengear device
Just taking this from https://opengear.zendesk.com/hc/en-us/articles/216372923-How-to-upload-an-SSL-certificate since I don’t know how long it will live there. Here’s all that actually matters. Cert+CA (in that order) goes in /etc/config/ssl_cert.pem Key goes in Continue Reading…
FortiGate + T-Mobile for Out of Band Access
I’ve been growing increasingly frustrated with the ongoing move towards mediocrity at Opengear, presumably the result of the Digi acquisition, similar to what happened to Nimble after HPE bought them. Continue Reading…
Getting a modern EOS on an Arista 7010T
The (currently) last version of EOS to support the venerable Arista 7010T switch is 4.28.10.1M. This is such a great switch; you can find them on eBay, often for less Continue Reading…
Arista Optics vs Real World
Just throwing a quick post up to act as a note to myself on Arista’s transceiver form factor names and how they map to the rest of the world. There’s Continue Reading…
Speeding up long-distance vMotion
Here’s the situation I was facing. Two Vmware vCenter 7.0.3. clusters on opposite sides of the country, connected via a a 10gig point to point ethernet circuit, and that circuit Continue Reading…
IPIP tunneling in Linux (Ubuntu)
I think the increasingly low use of IPIP, i.e. IP-in-IP or IP-IP, tunneling these past few decades has resulted in very little documentation on how to set it up on Continue Reading…
Arista 7280SE upgrade failure
If you see this style of error after upgrading a 7280SE, it’s because EOS past 4.23 doesn’t support the good ol’ 7280SE (reference https://www.arista.com/en/support/advisories-notices/end-of-support/10276-end-of-software-support-for-7500e-7280e): Jul 27 07:34:34 rtr-lax-int2 SuperServer: 93: Continue Reading…
Accessing pfSense-based CRL remotely
I have an OpenVPN instance operating on a pfSense firewall virtual machine. Within OpenVPN I’m using both radius-based two factor for authentication, and certificate-based auth in the client. Doing this Continue Reading…