Why isn't it possible to lower TCP values of running SSH session?

Wed Nov 25 00:34:56 AEDT 2015

On 11/24/2015 10:22 AM, Peter Stuge wrote:
> Salvador Fandino wrote:
>> Some years ago I found that the implementation of TCP keepalive on Linux
>> is not reliable.
> ..
>> That bug is probably still there.
>
> Did you file a report at bugzilla.kernel.org?

I discussed the issue on the Linux networking mailing list but I went 
nowhere.