October 2012
Intermediate to advanced
419 pages
10h 47m
English
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Chapter 7. Upgrading EOS
Upgrading EOS is a simple process. In a nutshell, get the software
image onto the switch, configure the switch to see the new image, and then
reboot the switch. Let’s start by taking a look at the current version of EOS on our
7124S switch by using the show version
command:
Arista#sho ver
Arista DCS-7124S-F
Hardware version: 06.02
Serial number: JSH10170315
System MAC address: 001c.7308.80ae
Software image version: 4.7.8
Architecture: i386
Internal build version: 4.7.8-535760.EOS478
Internal build ID: 530a4112-b24f-40ef-bbe2-8c4b139a797d
Uptime: 4 days, 20 hours and 4 minutes
Total memory: 2042400 kB
Free memory: 891220 kBWe can see from this output that our switch is running EOS version 4.7.8.
Note
Check out the model number in the first line of output, which reads DCS-7124S-F. The -F indicates that this switch shipped with front-to-rear airflow fans. If the model number had a -R appended to it, the fans would be rear-to-front. Cool, huh? Well I think it is, but then, little things like this excite me.
If we felt like poking around further where we don’t belong (and who
doesn’t?), then we could use the show version
detail command, which will regale us with page upon page of
process names and their requisite versions:
Arista#sho version detail Arista DCS-7124S-F Hardware version: 06.02 Deviations: D0000213, D0000203 Serial number: JSH10170315 System MAC address: 001c.7308.80ae Software image version: 4.7.8 Architecture: i386 Internal build version: 4.7.8-535760.EOS478 ...Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.