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-rw-r--r--Documentation/networking/ip-sysctl.txt9
1 files changed, 9 insertions, 0 deletions
diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt
index c7165f4cb79..fe95105992c 100644
--- a/Documentation/networking/ip-sysctl.txt
+++ b/Documentation/networking/ip-sysctl.txt
@@ -20,6 +20,15 @@ ip_no_pmtu_disc - BOOLEAN
min_pmtu - INTEGER
default 562 - minimum discovered Path MTU
+route/max_size - INTEGER
+ Maximum number of routes allowed in the kernel. Increase
+ this when using large numbers of interfaces and/or routes.
+
+neigh/default/gc_thresh3 - INTEGER
+ Maximum number of neighbor entries allowed. Increase this
+ when using large numbers of interfaces and when communicating
+ with large numbers of directly-connected peers.
+
mtu_expires - INTEGER
Time, in seconds, that cached PMTU information is kept.