I had 6 switches that got botched today and we only have 2 laptops so I spent 2.5 hours (38 min/switch minimum) babysitting the laptops while they download the new binary. Obviously if I don't have time to do the firmware over Tel Net I don't have time to do it out in the field, at least not at the amount of time it's costing me. Sounds like you already have IP addresses on the boxes, so a central TFTP server that can handle multiple simultaneous downloads should do the trick.
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For example, 12.1(8)E14 is a Rebuild, the 14 denoting the 14th rebuild of 12.1(8)E.
Cisco network equipment is powered by the Cisco IOS software which is stored in flash memory of the router and moved into the RAM during boot process.
Fundamentally it provides the area to execute commands to configure and administer the device.
Cisco may release different version and different feature set IOS image for same platform (hardware), so you may have to upgrade existing IOS to new IOS supporting advanced features and facilities.
I'd show the other guys how to do it in the field, but they're having a hard enough time with telnet, I'm not gonna try to get them to learn this.
If your equipment is Cisco 801-805 Router that uses Tiny ROM, then please use the following guide instead.
Cisco IOS Software Upgrade Procedure for Cisco 801, 802, 803, 804, and 805 Series Routers2.
This FAQ assumes that your router is able to boot up normally.
This is just a simple question, but here it is: OK, so we've been upgrading our cisco 3500XL switches at Res Net.