On 05/20/2015 04:35 PM, Eric Dumazet wrote:
From: Marcelo Ricardo Leitner <mleit...@redhat.com>
This patch tracks the total number of inbound and outbound segments on a
TCP socket. One may use this number to have an idea on connection
quality when compared against the retransmissions.
RFC4898 named these : tcpEStatsPerfSegsIn and tcpEStatsPerfSegsOut
These are a 32bit field each and can be fetched both from TCP_INFO
getsockopt() if one has a handle on a TCP socket, or from inet_diag
netlink facility (iproute2/ss patch will follow)
I suppose it is far-fetched, but is it a concern that at 100 Gbit/s and
1500 byte MTU the 32 bit segment counter would wrap in something like
500 seconds and change?
rick jones
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