migrate_mode.h is not exported to user mode

[karo-tx-linux.git] / Documentation / networking / ip-sysctl.txt

diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt
index f049a1ca186fbf6eb5e55ed9eb3a65bb8601b1f8..ad3e80e17b4f49a287c1d97d39e38cd8b092aa86 100644 (file)
--- a/Documentation/networking/ip-sysctl.txt
+++ b/Documentation/networking/ip-sysctl.txt
@@ -31,6 +31,16 @@ neigh/default/gc_thresh3 - INTEGER
        when using large numbers of interfaces and when communicating
        with large numbers of directly-connected peers.
 
+neigh/default/unres_qlen_bytes - INTEGER
+       The maximum number of bytes which may be used by packets
+       queued for each unresolved address by other network layers.
+       (added in linux 3.3)
+
+neigh/default/unres_qlen - INTEGER
+       The maximum number of packets which may be queued for each
+       unresolved address by other network layers.
+       (deprecated in linux 3.3) : use unres_qlen_bytes instead.
+
 mtu_expires - INTEGER
        Time, in seconds, that cached PMTU information is kept.
 
@@ -165,6 +175,9 @@ tcp_congestion_control - STRING
        connections. The algorithm "reno" is always available, but
        additional choices may be available based on kernel configuration.
        Default is set as part of kernel configuration.
+       For passive connections, the listener congestion control choice
+       is inherited.
+       [see setsockopt(listenfd, SOL_TCP, TCP_CONGESTION, "name" ...) ]
 
 tcp_cookie_size - INTEGER
        Default size of TCP Cookie Transactions (TCPCT) option, that may be
@@ -282,11 +295,11 @@ tcp_max_ssthresh - INTEGER
        Default: 0 (off)
 
 tcp_max_syn_backlog - INTEGER
-       Maximal number of remembered connection requests, which are
-       still did not receive an acknowledgment from connecting client.
-       Default value is 1024 for systems with more than 128Mb of memory,
-       and 128 for low memory machines. If server suffers of overload,
-       try to increase this number.
+       Maximal number of remembered connection requests, which have not
+       received an acknowledgment from connecting client.
+       The minimal value is 128 for low memory machines, and it will
+       increase in proportion to the memory of machine.
+       If server suffers from overload, try increasing this number.
 
 tcp_max_tw_buckets - INTEGER
        Maximal number of timewait sockets held by system simultaneously.