On 5/20/19 1:56 AM, Hangbin Liu wrote:
> When calles rtnl_dsfield_n2a(), we get the dsfield name from
> /etc/iproute2/rt_dsfield. But different distribution may have
> different names. So add a new parameter '-Numeric' to only show
> the dsfield number.
> 
> This parameter is only used for tos value at present. We could enable
> this for other fields if needed in the future.
> 

It does not make sense to add this flag just for 1 field.

3 years ago I started a patch to apply this across the board. never
finished it. see attached. The numeric variable should be moved to
lib/rt_names.c. It handles all of the conversions in that file - at
least as of May 2016.