netdev - [PATCHv2 net-next 4/4] ipvs: Document sysctl pmtu

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Message-Id: <1487579498-18967-5-git-send-email-liuhangbin@gmail.com>
Date:   Mon, 20 Feb 2017 16:31:38 +0800
From:   Hangbin Liu <liuhangbin@...il.com>
To:     lvs-devel@...r.kernel.org
Cc:     netdev@...r.kernel.org,
        Marcelo Ricardo Leitner <marcelo.leitner@...il.com>,
        Julian Anastasov <ja@....bg>,
        Hangbin Liu <liuhangbin@...il.com>
Subject: [PATCHv2 net-next 4/4] ipvs: Document sysctl pmtu_disc

Document sysctl pmtu_disc based on commit 3654e61137db ("ipvs: add
pmtu_disc option to disable IP DF for TUN packets").

Signed-off-by: Hangbin Liu <liuhangbin@...il.com>
---
 Documentation/networking/ipvs-sysctl.txt | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/Documentation/networking/ipvs-sysctl.txt b/Documentation/networking/ipvs-sysctl.txt
index a6feecd..0568986 100644
--- a/Documentation/networking/ipvs-sysctl.txt
+++ b/Documentation/networking/ipvs-sysctl.txt
@@ -175,6 +175,14 @@ nat_icmp_send - BOOLEAN
         for VS/NAT when the load balancer receives packets from real
         servers but the connection entries don't exist.
 
+pmtu_disc - BOOLEAN
+	0 - disabled
+	not 0 - enabled (default)
+
+	By default, reject with FRAG_NEEDED all DF packets that exceed
+	the PMTU, irrespective of the forwarding method. For TUN method
+	the flag can be disabled to fragment such packets.
+
 secure_tcp - INTEGER
         0  - disabled (default)
 
-- 
2.5.5