August 4, 2008

Pre-ISR routers discontinued in IOS :-(

The old Cisco battleships, the pre-ISR routers, are going to be discontinued in the next upcoming IOS versions, starting from 12.4(20)T.

I found this information while I was going through a presentation about new features that were implemented in the 12.4(20)T version of IOS:

image

So the last available IOS for pre-ISR routers will be the 12.4(15)T version. For more information, go to cisco.com.