From: Roopa Prabhu <ro...@cumulusnetworks.com>
This series implements arp and nd suppression in the bridge
driver for ethernet vpns. It implements rfc7432, section 10
https://tools.ietf.org/html/rfc7432#section-10
for ethernet VPN deployments. It is similar to the existing
BR_ARP_PROXY flag but has a few semantic differences to conform
to EVPN standard. In case of EVPN, it is mainly used to avoid flooding to
tunnel ports like vxlan/mpls. Unlike the existing flags it suppresses flood
of all neigh discovery packets (arp, nd) to tunnel ports.
Roopa Prabhu (3):
bridge: add new BR_NEIGH_SUPPRESS port flag to suppress arp and nd
flood
neigh arp suppress first
bridge: suppress nd messages from going to BR_NEIGH_SUPPRESS ports
include/linux/if_bridge.h | 1 +
include/uapi/linux/if_link.h | 1 +
net/bridge/Makefile | 2 +-
net/bridge/br_arp_nd_proxy.c | 492 +++++++++++++++++++++++++++++++++++++++++++
net/bridge/br_device.c | 18 ++
net/bridge/br_forward.c | 3 +-
net/bridge/br_if.c | 5 +
net/bridge/br_input.c | 73 ++-----
net/bridge/br_netlink.c | 16 +-
net/bridge/br_private.h | 9 +
net/bridge/br_sysfs_if.c | 2 +
11 files changed, 561 insertions(+), 61 deletions(-)
create mode 100644 net/bridge/br_arp_nd_proxy.c
--
2.1.4
