Commit Graph

6 Commits

Author SHA1 Message Date
Bryan Venteicher
33e0d8f057 Add support for IPv6 scoped addresses to vxlan
MFC after:	2 weeks
2017-12-30 04:03:53 +00:00
Bryan Venteicher
f53d97231b Use consistent name for the vxlan VNI parameter name and provide shorthand
Submitted by:	hrs
MFC after:	1 month
Differential Revision:	https://reviews.freebsd.org/D2868
2017-12-07 04:55:31 +00:00
Enji Cooper
abd7105060 Replace N #defines with nitems to simplify ifconfig code slightly
MFC after: 1 week
2015-09-27 07:51:18 +00:00
Gleb Smirnoff
56d5e0967c Stop including if_var.h from userland.
Sponsored by:	Nginx, Inc.
2015-04-06 09:42:23 +00:00
Bryan Venteicher
c6e32006e1 Prefix all the vxlan ifconfig commands so they are unique
And rehook ifvxlan back into the build.
2014-12-17 05:36:34 +00:00
Bryan Venteicher
007054f070 Add vxlan interface
vxlan creates a virtual LAN by encapsulating the inner Ethernet frame in
a UDP packet. This implementation is based on RFC7348.

Currently, the IPv6 support is not fully compliant with the specification:
we should be able to receive UPDv6 packets with a zero checksum, but we
need to support RFC6935 first. Patches for this should come soon.

Encapsulation protocols such as vxlan emphasize the need for the FreeBSD
network stack to support batching, GRO, and GSO. Each frame has to make
two trips through the network stack, and each frame will be at most MTU
sized. Performance suffers accordingly.

Some latest generation NICs have begun to support vxlan HW offloads that
we should also take advantage of. VIMAGE support should also be added soon.

Differential Revision:	https://reviews.freebsd.org/D384
Reviewed by:	gnn
Relnotes:	yes
2014-10-20 14:42:42 +00:00