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

[Mark Tinka]

On Friday, January 10, 2014 11:07:52 PM John Elliot wrote:

> 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).

It is supported, but has to (annoyingly) be implemented on 
the member links instead of the LAG.

This is a general IOS problem (IOS XE is really just IOS on 
Linux), as other IOS-based platforms have the same 
implementation style/limitation.

IOS XR doesn't have this issue. One can deploy MQC on a LAG, 
and the routers know what to do across member links. Cisco 
call this SPI (Shared Policy Instance).

Mark.
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