TCPBacklogDrop: 1 TCPReqQFullDoCookies: 288 TCPRetransFail: 5 TCPRcvCoalesce: 11995363 TCPOFOQueue: 399736 TCPOFOMerge: 1519 TCPChallengeACK: 2475 TCPSYNChallenge: 622 TCPFastOpenCookieReqd: 11 TCPSpuriousRtxHostQueues: 39326 TCPAutoCorking: 533 TCPFromZeroWindowAdv: 449 TCPToZeroWindowAdv: 4...
put into the sk backlog queue, so it can be received by the process immediately<sock_drop>the number of packets dropped before they are de- multiplexed into the socket --memory/-m : 展示buffer窗口的大小 # ss -m | xargs -L 1 | grep "ESTAB" | awk '{ if($3>0 || $4>0) print...
Linux下的netstat命令用于显示各种网络相关信息,如网络连接,路由表,接口状态 (Interface Statistics),masquerade 连接,多播成员 (Multicast Memberships) 等等。netstat是在内核中访问网络及相关信息的程序,它能提供TCP连接,TCP和UDP监听,进程内存管理的相关报告。 从整体上看,netstat的输出结果可以分为两个部分:一个是Acti...
netstat -s的Tcp类选的数据均来自内核中定义的snmp4_tcp_list数组。 struct snmp_mib { const char *name; int entry; }; snmp4_tcp_list数组就是/proc/net/snmp接口输出的TCP部分内容 snmp4_tcp_list统计结果实例一则 # cat /proc/net/snmp |grep Tcp /* 适当调整了输个格式,以增加可读性 */ Tcp:...
put into the sk backlog queue, so it can be received by the process immediately <sock_drop> the number of packets dropped before they are de- multiplexed into the socket The entireprintformat of ss -m is given in the source: printf(" skmem:(r%u,rb%u,t%u,tb%u,f%u,w%u,o%u", ...
Thenetstatcommand collects the listening TCP connections and includes the users for the connections’ processes in the output. The firstawkcommand limits the output to the column that displays the user. The firstgrepcommand deletes the line with the header information generated bynetstat. ...
receive queue due to low socket buffer 9 DSACKs sent for old packets 12 DSACKs received 1 connections reset due to unexpected data 19 connections reset due to early user close 3 connections aborted due to timeout TCPSackShiftFallback: 1 TCPBacklogDrop: 16 IpExt: InMcastPkts: 35 InBcast...