01-10-2012 07:33 AM - edited 03-04-2019 02:51 PM
I am looking to upgrade a 2811 router to 15.1.2T and see in the release notes that this image is only compatible with the "C Series" older ISR routers? What is a "C Series" ISR and how do I know if I have one?
Any info would be appreciated. Thanks.
01-10-2012 07:35 AM
Would you paste in the entire context or post a link.
01-10-2012 11:16 AM
Cisco IOS Release 15.1(2)T supports the Cisco 1841C, Cisco 2801C, Cisco 2811C, Cisco 2821C, Cisco 3825C, and Cisco 3845C integrated service routers generation 1 C-series.
http://www.cisco.com/en/US/docs/ios/15_1/release/notes/151-2TNEWF.html#wp43314
01-10-2012 01:21 PM
I can only think that these are special reduced features models, that Cisco never publicly announced.
However, the release notes says that these models are also supported, not exclusively.
01-10-2012 02:45 PM
You are correct, they are not exclusively the only models. Also, the 2nd generation ISRs are supported. There is no mention of a standard 1st gen ISR router excep the C-Series. This is confusing as Cisco has referred to this C series and there is no documentation indicating what a C series is.
Find answers to your questions by entering keywords or phrases in the Search bar above. New here? Use these resources to familiarize yourself with the community: