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-rw-r--r--Documentation/networking/ip-sysctl.rst4
1 files changed, 3 insertions, 1 deletions
diff --git a/Documentation/networking/ip-sysctl.rst b/Documentation/networking/ip-sysctl.rst
index 208f46967ee5..f7af0286341c 100644
--- a/Documentation/networking/ip-sysctl.rst
+++ b/Documentation/networking/ip-sysctl.rst
@@ -248,7 +248,7 @@ neigh/default/unres_qlen - INTEGER
neigh/default/interval_probe_time_ms - INTEGER
The probe interval for neighbor entries with NTF_MANAGED flag,
- the min value is 1.
+ the min value is 1, and the max value is 86400000 (1 day).
Default: 5000
@@ -874,6 +874,8 @@ tcp_rmem - vector of 3 INTEGERs: min, default, max
case this value is ignored.
Default: between 131072 and 32MB, depending on RAM size.
+ Each of the three values cannot be set below 4096.
+
tcp_sack - BOOLEAN
Enable select acknowledgments (SACKS).