What is the difference between cisco IOS and IOS XE ?
Maybe looking at it in a simplistic way but ios is just going to be another Linux application.on the ios xe boxes.
IOS is a monolithic OS and for that reason is going to be "replaced". The reason why is from an operational, maintenance, and programming point of view. IOS XE is more modular, and process fails don't cause HUGE harm to other processes. On IOS if one process fails the entire router could fail, so that is a big problem from a operational perspective. Think about ISPs arround the world, a failure on a core router could cause big financial losts. I think that's one of the reason why Juniper's Junos/JunOS it's widely deployed on ISP enviroments.
so possibly on ios xe the ios could be running multiple times and if one ios process fails then it just affects the packets it was currently routing?
Hi Elvin ,
Good Day !!!!!!
Does it means that in there is hardware architecture difference in routers suppoting IOS XE ?
Also is there is any command line difference ?
There shouldn't be too much cli differences. I am running it on some 4500s and haven't seen any major differences in commands and such.
Hi Jared !!!!!
Thanks a lot .............. :-)