diff options
| author | Fan Du <fan.du@intel.com> | 2015-03-06 11:18:22 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-03-06 14:57:41 -0500 |
| commit | dcd8fb8533ceb493146ce030d15f7965b82d0c27 (patch) | |
| tree | 9e33b585cda6ed2cbebc6cf4841fc04eafb58e41 | |
| parent | aaa4e70404c7b38a8792dc69af54afd7218b2ec0 (diff) | |
ipv4: Raise tcp PMTU probe mss base size
Quotes from RFC4821 7.2. Selecting Initial Values
It is RECOMMENDED that search_low be initially set to an MTU size
that is likely to work over a very wide range of environments. Given
today's technologies, a value of 1024 bytes is probably safe enough.
The initial value for search_low SHOULD be configurable.
Moreover, set a small value will introduce extra time for the search
to converge. So set the initial probe base mss size to 1024 Bytes.
Signed-off-by: Fan Du <fan.du@intel.com>
Acked-by: John Heffner <johnwheffner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | include/net/tcp.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/net/tcp.h b/include/net/tcp.h index f87599d5af82..834089b0cffc 100644 --- a/include/net/tcp.h +++ b/include/net/tcp.h @@ -65,7 +65,7 @@ void tcp_time_wait(struct sock *sk, int state, int timeo); #define TCP_MIN_MSS 88U /* The least MTU to use for probing */ -#define TCP_BASE_MSS 512 +#define TCP_BASE_MSS 1024 /* After receiving this amount of duplicate ACKs fast retransmit starts. */ #define TCP_FASTRETRANS_THRESH 3 |