Cisco 3550 Switch Ios

1. Cisco 3550 Switch Ios Image Download For Gns3
2. Network Switches, LAN And Enterprise Switches - Cisco
3. Cisco 3550 Switch Ios Download For Gns3

Tired of waiting for those ####### every time you turn on your devices? When you see those, it means that the Cisco IOS is uncompressing itself. If you want to save a bit of time when booting your routers up, you can decompress the image on your computer then send it to your routers. Set the devices to boot from the new, uncompressed images, and they’ll boot up quite a lot faster! You’ll have to check that the device has enough room to store the uncompressed image though. My switches need new images put on them so I’ll go through the recovery procedure on them, but they can’t fit the uncompressed images on them unfortunately!

I’ll be using XMODEM to send the new images over to my switches using SecureCRT. As far as I know, Putty doesn’t support XMODEM so you’ll need to use a terminal emulator that does – SecureCRT and TeraTerm both do. Normally you could use TFTP from privileged mode, but my switch currently has no IOS image on it so I’ll be using XMODEM instead. This is usually used when a device has a corrupt IOS image.

This is usually used when a device has a corrupt IOS image. To upgrade the IOS we need to boot into Switch ROM mode. To do this: Open a console session with the switch to ensure you can access it. Unplug the switch. Hold down the Mode button on the front of the switch. Reconnect the switch to the mains. . Catalyst 3550 switch running Cisco IOS Software Release 12.1(14)EA. Catalyst 6500/6000 switch running Cisco IOS Software Release 12.1(13)E1 The information in this document was created from the devices in a specific lab environment.

To upgrade the IOS we need to boot into Switch ROM mode. To do this:

• Open a console session with the switch to ensure you can access it
• Unplug the switch
• Hold down the Mode button on the front of the switch
• Reconnect the switch to the mains
• Let go of the Mode button once the switch says that the flash initialization has been interrupted

This should come up in the console session:

The system has been interrupted, or encountered an error
during initializion of the flash filesystem. The following
commands will initialize the flash filesystem, and finish
loading the operating system software:

flash_init
boot

Initialize and format the flash:

Set the BAUD rate on the console line to increase the speed at which the image will transfer (the BAUD command is case sensitive):

Once we do that we’ll need to reconnect the console session, changing the BAUD rate from the default of 9600 to 115200 on the terminal program.

Tell the switch to use XMODEM to copy the file over:

Then tell SecureCRT or whatever you’re using to send the file via XMODEM. The transfer should then start and you should then see something like this:

Once it’s finished this will come up, and we can tell it which image to boot from, and then tell it to boot:

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Cisco 3550 Switch Ios Image Download For Gns3

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Network Switches, LAN And Enterprise Switches - Cisco

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File “xmodem:” successfully copied to “flash:c3550-ipservices-mz.122-44.SE6.bin”
switch: set boot flash:c3550-ipservices-mz.122-44.SE6.bin
switch: boot

Cisco 3550 Switch Ios Download For Gns3

After that it should boot up just fine with the new image!