Add missing documentation for two neighbor table garbage collector sysctl parameters in ip-sysctl.rst: * neigh/default/gc_interval: controls how often the garbage collector runs for neighbor entries (default: 30 seconds) * neigh/default/gc_stale_time: controls how long an unused neighbor entry is kept before becoming eligible for garbage collection (default: 60 seconds) Signed-off-by: Gabriel Goller --- Documentation/networking/ip-sysctl.rst | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/Documentation/networking/ip-sysctl.rst b/Documentation/networking/ip-sysctl.rst index 28c7e4f5ecf9..033e18303d79 100644 --- a/Documentation/networking/ip-sysctl.rst +++ b/Documentation/networking/ip-sysctl.rst @@ -202,6 +202,21 @@ neigh/default/gc_thresh3 - INTEGER Default: 1024 +neigh/default/gc_interval - INTEGER + How often the garbage collector for neighbor entries should run. This + value applies to the entire table, not individual entries. + + Default: 30 seconds + +neigh/default/gc_stale_time - INTEGER + Determines how long a neighbor entry can remain unused before it is + considered stale and eligible for garbage collection. Entries that have + not been used for longer than this time will be removed by the garbage + collector, unless they have active references, are marked as PERMANENT, + or carry the NTF_EXT_LEARNED or NTF_EXT_VALIDATED flag. + + Default: 60 seconds + neigh/default/unres_qlen_bytes - INTEGER The maximum number of bytes which may be used by packets queued for each unresolved address by other network layers. -- 2.47.3