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neigh: document gc_thresh2

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Missing documentation for gc_thresh2 sysctl.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
stephen hemminger 2014-08-25 15:05:30 -07:00 committed by David S. Miller
parent f79918afb7
commit a3d1214688
1 changed files with 6 additions and 0 deletions
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6
Documentation/networking/ip-sysctl.txt
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@ -65,6 +65,12 @@ neigh/default/gc_thresh1 - INTEGER
purge entries if there are fewer than this number. purge entries if there are fewer than this number.
Default: 128 Default: 128
neigh/default/gc_thresh2 - INTEGER
Threshold when garbage collector becomes more aggressive about
purging entries. Entries older than 5 seconds will be cleared
when over this number.
Default: 512
neigh/default/gc_thresh3 - INTEGER neigh/default/gc_thresh3 - INTEGER
Maximum number of neighbor entries allowed. Increase this Maximum number of neighbor entries allowed. Increase this
when using large numbers of interfaces and when communicating when using large numbers of interfaces and when communicating