1 files changed, 3 insertions, 0 deletions

diff --git a/Documentation/networking/dccp.txt b/Documentation/networking/dccp.txt
index cdb64922ba10..271d524a4c8d 100644
--- a/Documentation/networking/dccp.txt
+++ b/Documentation/networking/dccp.txt
@@ -174,6 +174,9 @@ Per-route rto_min support
                 > ip route change 10.0.0.0/24   rto_min 250j dev wlan0
                 > ip route add    10.0.0.254/32 rto_min 800j dev wlan0
                 > ip route show dev wlan0
+        CCID-3 also supports the rto_min setting: it is used to define the lower
+        bound for the expiry of the nofeedback timer. This can be useful on LANs
+        with very low RTTs (e.g., loopback, Gbit ethernet).
 
 
 Notes