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Diffstat (limited to 'Documentation/networking/proc_net_tcp.txt')
| -rw-r--r-- | Documentation/networking/proc_net_tcp.txt | 48 |
1 files changed, 0 insertions, 48 deletions
diff --git a/Documentation/networking/proc_net_tcp.txt b/Documentation/networking/proc_net_tcp.txt deleted file mode 100644 index 4a79209e77a7..000000000000 --- a/Documentation/networking/proc_net_tcp.txt +++ /dev/null @@ -1,48 +0,0 @@ -This document describes the interfaces /proc/net/tcp and /proc/net/tcp6. -Note that these interfaces are deprecated in favor of tcp_diag. - -These /proc interfaces provide information about currently active TCP -connections, and are implemented by tcp4_seq_show() in net/ipv4/tcp_ipv4.c -and tcp6_seq_show() in net/ipv6/tcp_ipv6.c, respectively. - -It will first list all listening TCP sockets, and next list all established -TCP connections. A typical entry of /proc/net/tcp would look like this (split -up into 3 parts because of the length of the line): - - 46: 010310AC:9C4C 030310AC:1770 01 - | | | | | |--> connection state - | | | | |------> remote TCP port number - | | | |-------------> remote IPv4 address - | | |--------------------> local TCP port number - | |---------------------------> local IPv4 address - |----------------------------------> number of entry - - 00000150:00000000 01:00000019 00000000 - | | | | |--> number of unrecovered RTO timeouts - | | | |----------> number of jiffies until timer expires - | | |----------------> timer_active (see below) - | |----------------------> receive-queue - |-------------------------------> transmit-queue - - 1000 0 54165785 4 cd1e6040 25 4 27 3 -1 - | | | | | | | | | |--> slow start size threshold, - | | | | | | | | | or -1 if the threshold - | | | | | | | | | is >= 0xFFFF - | | | | | | | | |----> sending congestion window - | | | | | | | |-------> (ack.quick<<1)|ack.pingpong - | | | | | | |---------> Predicted tick of soft clock - | | | | | | (delayed ACK control data) - | | | | | |------------> retransmit timeout - | | | | |------------------> location of socket in memory - | | | |-----------------------> socket reference count - | | |-----------------------------> inode - | |----------------------------------> unanswered 0-window probes - |---------------------------------------------> uid - -timer_active: - 0 no timer is pending - 1 retransmit-timer is pending - 2 another timer (e.g. delayed ack or keepalive) is pending - 3 this is a socket in TIME_WAIT state. Not all fields will contain - data (or even exist) - 4 zero window probe timer is pending |