netdev - Re: [iproute2-next v2] seg6: add counters support for SRv6 Behaviors

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Date:   Sun, 9 May 2021 16:23:35 -0600
From:   David Ahern <dsahern@...il.com>
To:     Paolo Lungaroni <paolo.lungaroni@...roma2.it>,
        David Ahern <dsahern@...nel.org>, netdev@...r.kernel.org
Cc:     Jakub Kicinski <kuba@...nel.org>,
        Stephen Hemminger <stephen@...workplumber.org>,
        Stefano Salsano <stefano.salsano@...roma2.it>,
        Ahmed Abdelsalam <ahabdels.dev@...il.com>,
        Andrea Mayer <andrea.mayer@...roma2.it>
Subject: Re: [iproute2-next v2] seg6: add counters support for SRv6 Behaviors

On 5/8/21 9:44 AM, Paolo Lungaroni wrote:
> We introduce the "count" optional attribute for supporting counters in SRv6
> Behaviors as defined in [1], section 6. For each SRv6 Behavior instance,
> counters defined in [1] are:
> 
>  - the total number of packets that have been correctly processed;
>  - the total amount of traffic in bytes of all packets that have been
>    correctly processed;
> 
> In addition, we introduce a new counter that counts the number of packets
> that have NOT been properly processed (i.e. errors) by an SRv6 Behavior
> instance.
> 
> Each SRv6 Behavior instance can be configured, at the time of its creation,
> to make use of counters specifing the "count" attribute as follows:
> 
>  $ ip -6 route add 2001:db8::1 encap seg6local action End count dev eth0
> 
> per-behavior counters can be shown by adding "-s" to the iproute2 command
> line, i.e.:
> 
>  $ ip -s -6 route show 2001:db8::1
>  2001:db8::1 encap seg6local action End packets 0 bytes 0 errors 0 dev eth0
> 
> [1] https://www.rfc-editor.org/rfc/rfc8986.html#name-counters
> 
> v2:
>  - add help and route.8 man page updates
> 
> Signed-off-by: Andrea Mayer <andrea.mayer@...roma2.it>
> Signed-off-by: Paolo Lungaroni <paolo.lungaroni@...roma2.it>
> ---
>  include/uapi/linux/seg6_local.h | 30 ++++++++++++++
>  ip/iproute.c                    |  9 ++++-
>  ip/iproute_lwtunnel.c           | 72 ++++++++++++++++++++++++++++++++-
>  man/man8/ip-route.8.in          | 13 ++++--
>  4 files changed, 119 insertions(+), 5 deletions(-)
> 

applied. Thanks,