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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.
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
Maximum number of neighbor entries allowed. Increase this
when using large numbers of interfaces and when communicating