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authorChristian Breunig <christian@breunig.cc>2023-10-28 20:57:38 +0200
committerMergify <37929162+mergify[bot]@users.noreply.github.com>2023-10-31 06:01:09 +0000
commit2e85b7ccef45924f1aae03513e116b9087c7ef69 (patch)
tree91fc367354555b5faa9d784e5683230370ac80fa /src/conf_mode/arp.py
parentc937ef1b220b5d25834b3dd41ae9128b136d7b05 (diff)
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vxlan: T5668: add CLI knob to enable ARP/ND suppression
In order to minimize the flooding of ARP and ND messages in the VXLAN network, EVPN includes provisions [1] that allow participating VTEPs to suppress such messages in case they know the MAC-IP binding and can reply on behalf of the remote host. In Linux, the above is implemented in the bridge driver using a per-port option called "neigh_suppress" that was added in kernel version 4.15. [1] https://www.rfc-editor.org/rfc/rfc7432#section-10 (cherry picked from commit ec9a95502daa88b9632af12524e7cefebf86bab6)
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