First Cisco device upgrade

17 04 2012

So, read about it plenty of times but never actually done it – until today. Have to say, it’s a hair raising few moments waiting for the device to start booting from the new image but very satisfying when it does. These are the steps I took – no warranty implied, do it at your own risk.

1. Install TFTPD32 on computer, verify upload of file from a Cisco device with known good connectivity

2. Upload the .bin file from the device where the OS is to be upgraded to the TFTP server. This is to ensure that there is a fall-back plan if the new image doesn’t work. It was not possible in this case to store both images at the same time on the switch.

3. Upload the image from the switch with the desired OS version to the TFTP server

4. Delete the old image from the switch to be upgraded.

5. Download the desired image from TFTP to the flash of the to-be-upgraded device

6. Configure the switch to boot from the new image:
Switch(config)#boot system switch all flash:/c3750-imgname.bin
Switch#copy run start

7. Verify the boot variable:
Switch#Show boot

8. Clench, and reload the switch 😉


15 09 2011

Decided to delay this exam from the original chosen date (had to delay once already, due to the pretty much emergency implementation of a project at work) of Tuesday, as I didn’t feel ready.

Managed to get an appointment at the same test centre but for tomorrow, Friday. Had a few extra days to study, and have finally got the Cisco switches and routers out again.

The bits I’m most concerned about are OSPF / EIGRP and Frame Relay, because I don’t and have never used them before, which makes it much harder to ‘get’ the concepts.

I’ve also lost my DCE/DTE cable, and didn’t give myself enough time to order a new one, so am winging it a little with no practise on PPP/HDLC too!

Will update here when I can, hopefully as a CCNA!

Thanks a bunch, Measure Up!

11 09 2011

So, got the ICND2 exam on Tuesday, and thought I’d buy the online practise tests from Measure UP as I’ve done for numerous exams previously.

Imagine my disappointment when I logged in to my “Learning Locker”, after having added the ICND2 practise tests to my Basket, when I saw that I had to download Silverlight to proceed. This is not compatible with iPad, iPhone or even the full blown Mac OSX.

The thing I liked most about Measure Up was the fact that I could access the practise tests from a number of platforms – my work desktop, laptop, iPad2 and even iPhone (although this was pushing the boundaries due to the screen size).

Now, I was forced to boot my PC just to write a complaint to them. I will be looking for alternatives now, but I fear that there may not be any. I’d quite possible rather go without than have my hand forced with regards the platform I use.