diff options
| author | Martin Varghese <martin.varghese@nokia.com> | 2020-02-24 10:57:50 +0530 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-02-24 13:31:42 -0800 |
| commit | 571912c69f0ed731bd1e071ade9dc7ca4aa52065 (patch) | |
| tree | 319a2ff693104702ebfc44cbf22cbfebc5000fba /Documentation/networking/bareudp.rst | |
| parent | 48851e9e802de3ede4ce81c3f7896c63e841adbc (diff) | |
| download | linux-571912c69f0ed731bd1e071ade9dc7ca4aa52065.tar.gz linux-571912c69f0ed731bd1e071ade9dc7ca4aa52065.tar.xz | |
net: UDP tunnel encapsulation module for tunnelling different protocols like MPLS, IP, NSH etc.
The Bareudp tunnel module provides a generic L3 encapsulation
tunnelling module for tunnelling different protocols like MPLS,
IP,NSH etc inside a UDP tunnel.
Signed-off-by: Martin Varghese <martin.varghese@nokia.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Documentation/networking/bareudp.rst')
| -rw-r--r-- | Documentation/networking/bareudp.rst | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/Documentation/networking/bareudp.rst b/Documentation/networking/bareudp.rst new file mode 100644 index 000000000000..6ee68c16cf5b --- /dev/null +++ b/Documentation/networking/bareudp.rst @@ -0,0 +1,34 @@ +.. SPDX-License-Identifier: GPL-2.0 + +======================================== +Bare UDP Tunnelling Module Documentation +======================================== + +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 module provides a generic L3 encapsulation tunnelling +support for tunnelling different L3 protocols like MPLS, IP, NSH etc. inside +a UDP tunnel. + +Usage +------ + +1) Device creation & deletion + + a) ip link add dev bareudp0 type bareudp dstport 6635 ethertype 0x8847. + + This creates a bareudp tunnel device which tunnels L3 traffic with ethertype + 0x8847 (MPLS traffic). The destination port of the UDP header will be set to + 6635.The device will listen on UDP port 6635 to receive traffic. + + b) ip link delete bareudp0 + +2) Device Usage + +The bareudp device could be used along with OVS or flower filter in TC. +The OVS or TC flower layer must set the tunnel information in SKB dst field before +sending packet buffer to the bareudp device for transmission. On reception the +bareudp device extracts and stores the tunnel information in SKB dst field before +passing the packet buffer to the network stack. |