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-rw-r--r--Documentation/networking/dccp.txt3
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