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net: bridge: add support for sticky fdb entries

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Add support for entries which are "sticky", i.e. will not change their port
if they show up from a different one. A new ndm flag is introduced for that
purpose - NTF_STICKY. We allow to set it only to non-local entries.

Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Nikolay Aleksandrov
2018-09-11 09:39:53 +03:00
committed by David S. Miller
parent 15665342d4
commit 435f2e7cc0
3 changed files with 18 additions and 3 deletions
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include/uapi/linux/neighbour.h
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@@ -43,6 +43,7 @@ enum {
#define NTF_PROXY 0x08 /* == ATF_PUBL */
#define NTF_EXT_LEARNED 0x10
#define NTF_OFFLOADED 0x20
#define NTF_STICKY 0x40
#define NTF_ROUTER 0x80
/*