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Date:   Mon, 20 May 2019 10:03:22 -0700
From:   Stephen Hemminger <>
To:     David Ahern <>
Cc:     Hangbin Liu <>,,
        Phil Sutter <>
Subject: Re: [PATCH iproute2 net-next] ip: add a new parameter -Numeric

On Mon, 20 May 2019 09:18:08 -0600
David Ahern <> wrote:

> 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.

Agree, if you are going to do it, go all in.
Handle all types and in same manner for ip, tc, bridge, and devlink.
ss already has -numeric option.

Wish that -n wasn't used for netns, should have been -N...

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