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| author | Eric Dumazet | 2015-05-06 23:26:25 +0200 |
|---|---|---|
| committer | David S. Miller | 2015-05-09 22:42:32 +0200 |
| commit | e520af48c7e5acae5f17f82a79ba7ab7cf156f3b (patch) | |
| tree | 45729a77a2017ec24e8185e7279b97a2019f87fe /include/uapi/linux/snmp.h | |
| parent | tcp: adjust window probe timers to safer values (diff) | |
| download | kernel-qcow2-linux-e520af48c7e5acae5f17f82a79ba7ab7cf156f3b.tar.gz kernel-qcow2-linux-e520af48c7e5acae5f17f82a79ba7ab7cf156f3b.tar.xz kernel-qcow2-linux-e520af48c7e5acae5f17f82a79ba7ab7cf156f3b.zip | |
tcp: add TCPWinProbe and TCPKeepAlive SNMP counters
Diagnosing problems related to Window Probes has been hard because
we lack a counter.
TCPWinProbe counts the number of ACK packets a sender has to send
at regular intervals to make sure a reverse ACK packet opening back
a window had not been lost.
TCPKeepAlive counts the number of ACK packets sent to keep TCP
flows alive (SO_KEEPALIVE)
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Yuchung Cheng <ycheng@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Acked-by: Nandita Dukkipati <nanditad@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/uapi/linux/snmp.h')
| -rw-r--r-- | include/uapi/linux/snmp.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/uapi/linux/snmp.h b/include/uapi/linux/snmp.h index 6a6fb747c78d..eee8968407f0 100644 --- a/include/uapi/linux/snmp.h +++ b/include/uapi/linux/snmp.h @@ -276,6 +276,8 @@ enum LINUX_MIB_TCPACKSKIPPEDFINWAIT2, /* TCPACKSkippedFinWait2 */ LINUX_MIB_TCPACKSKIPPEDTIMEWAIT, /* TCPACKSkippedTimeWait */ LINUX_MIB_TCPACKSKIPPEDCHALLENGE, /* TCPACKSkippedChallenge */ + LINUX_MIB_TCPWINPROBE, /* TCPWinProbe */ + LINUX_MIB_TCPKEEPALIVE, /* TCPKeepAlive */ __LINUX_MIB_MAX }; |