1) Is RME 3.5 "solid" when it comes to upgrading images on devices?
2) What kind of issues did you run into that may have or did cause an outage?
3) How many devices can be upgraded at a time.
4) Any other important factors that need to be taken into consideration.
The network I'm working on has close to 15,000 devices. Approx 5,000 of these are 3500 series switches and we've identified a serious bug that affects approximately 4,000 of these switches and they need to be upgraded.
I've only recently used SWIM to successfully upgrade 1-2900 switch and 1-3550 switch to 2-3 slightly different versions each and that worked fine, and that's it.
I'm basically looking for tips, pointers or would someone even attempt such a task.
P.S. There are 7 different models of the 3500s. There are 17 different versions of IOSes running on these 7 different model devices. What a mess!
There is one bug of which I am aware that could bite you (CSCea62915). If the transfer is cut off for some reason, you might be left with a bad upgrade. To avoid this, do not reboot the switches until you have confirmed the checksum of the new image is good.
For these devices, be sure to use TFTP for your transfer protocol. Do not upgrade more than 12 devices in one job, and do not run more than 12 parallel SWIM jobs. Test one device first that you have good recovery access to just to check for any local gotchas. Be sure to schedule a large enough maintenance window for recovery.
This is actually a pretty cool feature, i didn't even know it existed until I was looking for a solution to advertise a subnet (prefix in BGP talk), only if a certain condition existed. This is exactly what conditional advertisements does
j ai une question j ai achete un routeur cisco 887VA-k9 , je le configuré avec la configuration ci- dessous
si je le lier avec mon pc portable sur l un de ses ports directement ça marche toute est bien ( la connexion internet + m...
Attached policy provides CLI access to the Cisco 4G router over text messaging. Two files are in the attached .tar file:
2. PDF with instructions on how to load and use the .tcl file.