[ovs-dev] [PATCH v4] Bareudp Tunnel Support

[Gregory Rose]

On 5/25/2020 8:31 PM, Martin Varghese wrote:
> From: Martin Varghese <martin.varghese at nokia.com>
> 
> There are various L3 encapsulation standards using UDP being discussed to
> leverage the UDP based load balancing capability of different networks.
> MPLSoUDP (__ https://tools.ietf.org/html/rfc7510) is one among them.
> 
> The Bareudp tunnel provides a generic L3 encapsulation tunnelling support
> for tunnelling different L3 protocols like MPLS, IP, NSH etc. inside a UDP
> tunnel.
> 
> An example to create bareudp device to tunnel MPLS traffic is
> given
> 
> $ ovs-vsctl add-port br_mpls udp_port -- set interface udp_port \
>               type=bareudp options:remote_ip=2.1.1.3
>               options:local_ip=2.1.1.2 \
>               options:payload_type=0x8847 options:dst_port=6635 \
>               options:packet_type="legacy_l3" \
>               ofport_request=$bareudp_egress_port
> 
> The bareudp device supports special handling for MPLS & IP as
> they can have multiple ethertypes. MPLS procotcol can have ethertypes
> ETH_P_MPLS_UC (unicast) & ETH_P_MPLS_MC (multicast). IP protocol can have
> ethertypes ETH_P_IP (v4) & ETH_P_IPV6 (v6).
> 
> The bareudp device to tunnel L3 traffic with multiple ethertypes
> (MPLS & IP) can be created by passing the L3 protocol name as string in
> the field payload_type. An example to create bareudp device to tunnel
> MPLS unicast & multicast traffic is given below.::
> 
> $ ovs-vsctl add-port  br_mpls udp_port -- set interface
>              udp_port \
>              type=bareudp options:remote_ip=2.1.1.3
>              options:local_ip=2.1.1.2 \
>              options:payload_type=mpls options:dst_port=6635 \
>              options:packet_type="legacy_l3"
> 
> Signed-off-by: Martin Varghese <martin.varghese at nokia.com>

Hi Martin,

I'm reviewing this patch - it's a large one and I have to get the 5.6
kernel built to test it so it'll take a little time.  Thanks for your
patience.

- Greg