[c-nsp] 7200VXR to ASR migration advice/guidance

[John Elliot]

> 
> Is there anything I need to watch out for, either hardware-wise or software-wise when moving the configuration?  (other than the typical nomenclature/interface designations and small syntactical changes, that is)
> 


Ive migrated a couple of 7200's -> ASR's - One "feature" the ASR is missing is qos/shaping etc on portchan subints - It's not supported, but will be "potentially" in the next XE release (early to mid this year).

Other than that, Ive been very happy with the ASR1K

> Any recommendations for code version on the ASR?
> 

Latest.