From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Ahern <dsa@cumulusnetworks.com>
Subject: Re: [PATCH iproute2] ip link: Add support for kernel side filtering
Date: Mon, 16 May 2016 12:30:53 -0600
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On 5/16/16 12:27 PM, David Ahern wrote:
> In general older kernels do not parse the attributes appended to the get
> request.

sorry, wrong wording: the attributes are parsed but ignored. I just 
checked an older 3.4 kernel tree and that is true there as well as prior 
to the kernel commit for this feature.