docs: Add neigh/gc_thresh3 and route/max_size documentation.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt
index c7165f4cb7927a152ec547caeecb393f5ad3c27e..fe95105992c57f1c81248dd8d3c1c38c3272e0f9 100644 (file)
--- 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.