Cisco 3750 software
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Here is what the flash looks like post upgrade. Below we have successfully loaded 03.06.06E onto the switch.Īs a post clean up task you should execute the command software clean switch 1. Once the switch has successfully finished reloading, you can log back in and confirm that the new version was successfully applied. It will take several minutes to reload, during the reload processes the switch does several post-installation tasks such as updating the Front-end Microcode. The switch prepares the image for installation below you see the switch performing pre-installation tasks.
CISCO 3750 SOFTWARE INSTALL
Switch# software install file usbflash0:cat3k_caa-universalk9.SPA.03.06.06.E.152-2.E6.bin I have chosen to use a USB drive to place my source image on, but you can still use a transfer protocol like TFTP or SCP.Īfter confirming that you have your source image in its proper location, execute the following command on the switch with your source image accurately defined. I still like to make sure since I am always paranoid. The new software version here will be 03.06.06E. As much as I enjoy my 3750 switches and their stackability, I haven’t had much love from the 15T of IOS images. You can see from the output of the 3650 that the current software version is 03.06.05b.e and it is running in Install Mode.ĭownload your image from Cisco. I would suggest operating in Install mode as this is the default, and provides you with a modular system, you can switch them if you choose. It consumes more memory than Install mode because packages are extracted from the bundle and copied to RAM. Cisco recommends not altering any of the files.īundle mode uses monolithic Cisco IOS images to boot the switch. pkg files found in the flash drive that provide a specific function to the OS. Now it either gets stuck in a boot loop or somethings boots up and is functional from the CLI for a minute or so then crashes. Install mode uses a package-provisioning file named nf, which is in charge of booting the switch. I bought an old 3750 off ebay, first thing I did was delete the IOS, format the flash, and copy a newer IOS to it. The Cisco Catalyst 3650, 3850, and 9K series switches have two modes of operation, Install Mode and Bundle Mode. Now that you have some understanding of the differences between IOS and IOS-XE you need to understand that there is two modes of operation. Individual sub packages create IOS-XE that can be upgraded individually.Multiprocessing allows for workloads to be shared across multiple CPUs.A single process could crash the entire system.Monolithic – The OS and its processes run in the same address space on the same hardware.You can also review upgrade procedure for specific hardware.Īs a quick introduction, here are some differences between IOS and IOS-XE.
CISCO 3750 SOFTWARE HOW TO
You can view my other post on how to convert IOS XE from Bundled running mode to Install running mode.Ĭonverting Cisco IOS-XE Software from Bundle Mode to Install Mode
CISCO 3750 SOFTWARE SOFTWARE UPGRADE
So today we will be going through the software upgrade process for a 3650 running in install mode. IOS-XE isn’t new, I prefer it over IOS because of its Linux base and the processing advantages it has. I got my hands on a Cisco Catalyst 3650-48PD-L switch which is the first access level switch that I’ve dealt with that is running IOS-XE.