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Linux网络统计工具/命令

作者: 良许 1,767阅读 0评论

Linux系统(基于CentOS 或者 Debian 的发行版)中使用 nstat 命令、ss 命令等都可以查看当前网络端口吞吐量的统计信息，还可以查看当前内核snmp计数器以及网络端口的统计信息，本篇文章和大家详细讲解一下Linux网络统计工具/命令

Linux网络统计工具/命令

nstat 命令 : 网络统计工具

键入以下命令:

 # nstat

输出样例:

 #kernel
 IpInReceives                    133243             0.0
 IpInDelivers                    133243             0.0
 IpOutRequests                   92904              0.0
 IcmpOutErrors                   97                 0.0
 IcmpOutTimeExcds                97                 0.0
 IcmpMsgOutType3                 97                 0.0
 TcpActiveOpens                  538                0.0
 TcpEstabResets                  56                 0.0
 TcpInSegs                       129837             0.0
 TcpOutSegs                      89720              0.0
 TcpRetransSegs                  42                 0.0
 TcpOutRsts                      704                0.0
 UdpInDatagrams                  3255               0.0
 UdpNoPorts                      97                 0.0
 UdpOutDatagrams                 3270               0.0
 Ip6OutNoRoutes                  206                0.0
 TcpExtTW                        141                0.0
 TcpExtDelayedACKs               508                0.0
 TcpExtDelayedACKLocked          1                  0.0
 TcpExtDelayedACKLost            42                 0.0
 TcpExtTCPHPHits                 117659             0.0
 TcpExtTCPPureAcks               2158               0.0
 TcpExtTCPHPAcks                 605                0.0
 TcpExtTCPSackRecovery           1                  0.0
 TcpExtTCPLossUndo               16                 0.0
 TcpExtTCPSackFailures           4                  0.0
 TcpExtTCPFastRetrans            1                  0.0
 TcpExtTCPSlowStartRetrans       3                  0.0
 TcpExtTCPTimeouts               33                 0.0
 TcpExtTCPDSACKOldSent           40                 0.0
 TcpExtTCPDSACKRecv              5                  0.0
 TcpExtTCPAbortOnData            120                0.0
 TcpExtTCPAbortOnClose           55                 0.0
 TcpExtTCPSackShiftFallback      9                  0.0
 IpExtInOctets                   180131682          0.0
 IpExtOutOctets                  7289106            0.0

ss 命令 : 查询套接字工具

要查看统计汇总, 输入:

 # ss -s

输出样例:

 Total: 786 (kernel 804)
 TCP:   65 (estab 40, closed 7, orphaned 0, synrecv 0, timewait 6/0), ports 56
 Transport Total     IP        IPv6
 *     804       -         -
 RAW   1         1         0
 UDP   12        9         3
 TCP   58        52        6
 INET      71        62        9
 FRAG      0         0         0

查看ss 命令教程 获取更多信息。

netstat 命令 : 不错的显示套接字信息的旧工具

查看所有网络端口以及汇总信息表，输入：

 # netstat -i

输出样例:

 Kernel Interface table
 Iface   MTU Met   RX-OK RX-ERR RX-DRP RX-OVR    TX-OK TX-ERR TX-DRP TX-OVR Flg
 eth0       1500 0    941022      0      0 0        688165      0      0      0 BMRU
 lo        16436 0      9304      0      0 0          9304      0      0      0 LRU
 ppp0       1496 0      3784      0      0 0          4177      0      0      0 MOPRU

查看每个协议的汇总统计信息，输入：

 # netstat -s

输出样例:

 Ip:
     1092065 total packets received
     0 forwarded
     0 incoming packets discarded
     1091681 incoming packets delivered
     798913 requests sent out
     895 dropped because of missing route
     759 reassemblies required
     375 packets reassembled ok
 Icmp:
     17 ICMP messages received
     0 input ICMP message failed.
     ICMP input histogram:
         timeout in transit: 8
         echo replies: 9
     1747 ICMP messages sent
     0 ICMP messages failed
     ICMP output histogram:
         destination unreachable: 1730
         echo request: 17
 IcmpMsg:
         InType0: 9
         InType11: 8
         OutType3: 1730
         OutType8: 17
 Tcp:
     4822 active connections openings
     1129 passive connection openings
     457 failed connection attempts
     165 connection resets received
     7 connections established
     1062519 segments received
     771394 segments send out
     7158 segments retransmited
     6 bad segments received.
     2578 resets sent
 Udp:
     20846 packets received
     1730 packets to unknown port received.
     0 packet receive errors
     19242 packets sent
 UdpLite:
 TcpExt:
     71 invalid SYN cookies received
     8 resets received for embryonic SYN_RECV sockets
     142 packets pruned from receive queue because of socket buffer overrun
     2109 TCP sockets finished time wait in fast timer
     84 packets rejects in established connections because of timestamp
     19454 delayed acks sent
     6 delayed acks further delayed because of locked socket
     Quick ack mode was activated 7306 times
     1 packets directly queued to recvmsg prequeue.
     1 bytes directly received in process context from prequeue
     823921 packet headers predicted
     24412 acknowledgments not containing data payload received
     10150 predicted acknowledgments
     242 times recovered from packet loss by selective acknowledgements
     33 congestion windows recovered without slow start by DSACK
     335 congestion windows recovered without slow start after partial ack
     336 TCP data loss events
     TCPLostRetransmit: 35
     1 timeouts after reno fast retransmit
     156 timeouts after SACK recovery
     116 timeouts in loss state
     461 fast retransmits
     5 forward retransmits
     608 retransmits in slow start
     2073 other TCP timeouts
     62 SACK retransmits failed
     43074 packets collapsed in receive queue due to low socket buffer
     8499 DSACKs sent for old packets
     101 DSACKs sent for out of order packets
     308 DSACKs received
     9 DSACKs for out of order packets received
     427 connections reset due to unexpected data
     122 connections reset due to early user close
     28 connections aborted due to timeout
     TCPDSACKIgnoredOld: 3
     TCPDSACKIgnoredNoUndo: 60
     TCPSpuriousRTOs: 4
     TCPSackShifted: 282
     TCPSackMerged: 740
     TCPSackShiftFallback: 1017
 IpExt:
     InMcastPkts: 47
     OutMcastPkts: 51
     InBcastPkts: 1
     InOctets: 1341508973
     OutOctets: 72525352
     InMcastOctets: 8649
     OutMcastOctets: 7519
     InBcastOctets: 328

查看 netstat 命令教程 获取更多信息。

ip / ifconfig 命令 : 配置或者显示网络端口信息

键入以下命令:

 # ifconfig

或者

 # /sbin/ifconfig

或者

 # ifconfig eth0
 eth0      Link encap:Ethernet  HWaddr b8:ac:6f:65:31:e5
           inet addr:192.168.1.5  Bcast:192.168.1.255  Mask:255.255.255.0
           inet6 addr: fe80::baac:6fff:fe65:31e5/64 Scope:Link
           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
           RX packets:966334 errors:0 dropped:0 overruns:0 frame:0
           TX packets:703297 errors:0 dropped:0 overruns:0 carrier:0
           collisions:0 txqueuelen:1000
           RX bytes:1186255648 (1.1 GiB)  TX bytes:73968238 (70.5 MiB)
           Interrupt:17
 lo        Link encap:Local Loopback
           inet addr:127.0.0.1  Mask:255.0.0.0
           inet6 addr: ::1/128 Scope:Host
           UP LOOPBACK RUNNING  MTU:16436  Metric:1
           RX packets:9666 errors:0 dropped:0 overruns:0 frame:0
           TX packets:9666 errors:0 dropped:0 overruns:0 carrier:0
           collisions:0 txqueuelen:0
           RX bytes:1399578 (1.3 MiB)  TX bytes:1399578 (1.3 MiB)
 ppp0      Link encap:Point-to-Point Protocol
           inet addr:10.1.11.70  P-t-P:10.0.31.18  Mask:255.255.255.255
           UP POINTOPOINT RUNNING NOARP MULTICAST  MTU:1496  Metric:1
           RX packets:3784 errors:0 dropped:0 overruns:0 frame:0
           TX packets:4177 errors:0 dropped:0 overruns:0 carrier:0
           collisions:0 txqueuelen:3
           RX bytes:2400265 (2.2 MiB)  TX bytes:275983 (269.5 KiB)

显示网络端口统计信息，输入：

 # ip -s link

输出样例:

 1: lo:  mtu 16436 qdisc noqueue state UNKNOWN
     link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
     RX: bytes  packets  errors  dropped overrun mcast
     1444187    9960     0       0       0       0
     TX: bytes  packets  errors  dropped carrier collsns
     1444187    9960     0       0       0       0
 2: eth0:  mtu 1500 qdisc mq state UP qlen 1000
     link/ether b8:ac:6f:65:31:e5 brd ff:ff:ff:ff:ff:ff
     RX: bytes  packets  errors  dropped overrun mcast
     1221956483 991501   0       0       0       24
     TX: bytes  packets  errors  dropped carrier collsns
     75623937   720272   0       0       0       0
 3: wlan0:  mtu 1500 qdisc noop state DOWN qlen 1000
     link/ether 00:21:6a:ca:9b:10 brd ff:ff:ff:ff:ff:ff
     RX: bytes  packets  errors  dropped overrun mcast
     0          0        0       0       0       0
     TX: bytes  packets  errors  dropped carrier collsns
     0          0        0       0       0       0
 4: pan0:  mtu 1500 qdisc noop state DOWN
     link/ether 4a:c7:5f:0e:8e:d8 brd ff:ff:ff:ff:ff:ff
     RX: bytes  packets  errors  dropped overrun mcast
     0          0        0       0       0       0
     TX: bytes  packets  errors  dropped carrier collsns
     0          0        0       0       0       0
 8: ppp0:  mtu 1496 qdisc pfifo_fast state UNKNOWN qlen 3
     link/ppp
     RX: bytes  packets  errors  dropped overrun mcast
     2419881    3848     0       0       0       0
     TX: bytes  packets  errors  dropped carrier collsns
     284151     4287     0       0       0       0

sar 命令: 显示网络统计信息

输入以下命令 (你需要 通过sysstat包安装并启用sar):

 Linux 2.6.32-220.2.1.el6.x86_64 (www.cyberciti.biz)    Tuesday 13 March 2012   _x86_64_        (2 CPU)
 12:00:01  CDT     IFACE   rxpck/s   txpck/s    rxkB/s    txkB/s   rxcmp/s   txcmp/s  rxmcst/s
 12:10:01  CDT        lo      0.00      0.00      0.00      0.00      0.00      0.00      0.00
 12:10:01  CDT      eth0    127.13    121.32     95.45     18.34      0.00      0.00      0.00
 12:10:01  CDT      eth1     98.48    110.62     16.72     96.33      0.00      0.00      0.00
 12:20:01  CDT        lo      0.00      0.00      0.00      0.00      0.00      0.00      0.00
 12:20:01  CDT      eth0    139.95    133.41    106.30     19.95      0.00      0.00      0.00
 12:20:01  CDT      eth1    110.65    121.85     18.14    107.13      0.00      0.00      0.00
 12:30:01  CDT        lo      0.00      0.00      0.00      0.00      0.00      0.00      0.00
 12:30:01  CDT      eth0    147.85    132.49    115.78     20.45      0.00      0.00      0.00
 12:30:01  CDT      eth1    111.88    127.39     18.61    117.65      0.00      0.00      0.00
 12:40:01  CDT        lo      0.00      0.00      0.00      0.00      0.00      0.00      0.00
 12:40:01  CDT      eth0    136.75    124.64    105.24     19.48      0.00      0.00      0.00
 12:40:01  CDT      eth1    101.65    115.32     17.58    104.50      0.00      0.00      0.00
 12:50:01  CDT        lo      0.00      0.00      0.00      0.00      0.00      0.00      0.00
 12:50:01  CDT      eth0    131.45    125.69     96.49     19.58      0.00      0.00      0.00
 12:50:01  CDT      eth1    101.41    111.31     17.54     96.78      0.00      0.00      0.00
 01:00:01  CDT        lo      0.00      0.00      0.00      0.00      0.00      0.00      0.00
 01:00:01  CDT      eth0    140.30    133.27    102.17     20.75      0.00      0.00      0.00
 01:00:01  CDT      eth1    106.90    119.51     18.53    103.09      0.00      0.00      0.00
 01:10:01  CDT        lo      0.00      0.00      0.00      0.00      0.00      0.00      0.00
 01:10:01  CDT      eth0    152.03    127.74    125.56     19.85      0.00      0.00      0.00
 01:10:01  CDT      eth1    115.60    134.57     18.73    126.96      0.00      0.00      0.00
 01:20:01  CDT        lo      0.00      0.00      0.00      0.00      0.00      0.00      0.00
 01:20:01  CDT      eth0    138.55    130.55    103.03     20.20      0.00      0.00      0.00
 ....
 ..
 ....
 ..
 .
 01:00:01  CDT      eth1    156.82    169.48     28.83    138.49      0.00      0.00      0.00
 01:10:01  CDT        lo      0.00      0.00      0.00      0.00      0.00      0.00      0.00
 01:10:01  CDT      eth0    215.19    194.82    163.11     30.99      0.00      0.00      0.00
 01:10:01  CDT      eth1    162.49    183.79     28.36    163.70      0.00      0.00      0.00
 01:20:01  CDT        lo      0.00      0.00      0.00      0.00      0.00      0.00      0.00
 01:20:01  CDT      eth0    200.20    192.23    140.64     30.93      0.00      0.00      0.00
 01:20:01  CDT      eth1    153.60    166.96     27.32    140.26      0.00      0.00      0.00
 01:30:01  CDT        lo      0.00      0.00      0.00      0.00      0.00      0.00      0.00
 01:30:01  CDT      eth0    111.98    103.58     79.12     16.52      0.00      0.00      0.48
 01:30:01  CDT      eth1     87.50     95.58     14.74     79.35      0.00      0.00      0.00
 Average:        IFACE   rxpck/s   txpck/s    rxkB/s    txkB/s   rxcmp/s   txcmp/s  rxmcst/s
 Average:           lo      0.00      0.00      0.00      0.00      0.00      0.00      0.00
 Average:         eth0    211.21    196.20    156.18     31.20      0.00      0.00      0.01
 Average:         eth1    159.10    174.52     28.00    149.95      0.00      0.00      0.00

或者输入以下命令:

 # sar -n DEV 1 3

输出样例:

  1. Linux 2.6.32-220.2.1.el6.x86_64 (www.cyberciti.biz) Tuesday 13 March 2012 _x86_64_ (2 CPU)
  2. 01:44:03 CDT IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s
  3. 01:44:04 CDT lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00
  4. 01:44:04 CDT eth0 161.70 154.26 105.20 26.63 0.00 0.00 0.00
  5. 01:44:04 CDT eth1 145.74 142.55 25.11 144.94 0.00 0.00 0.00
  6. 01:44:04 CDT IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s
  7. 01:44:05 CDT lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00
  8. 01:44:05 CDT eth0 162.14 156.31 107.46 42.18 0.00 0.00 0.00
  9. 01:44:05 CDT eth1 135.92 138.83 39.38 104.92 0.00 0.00 0.00
  10. 01:44:05 CDT IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s
  11. 01:44:06 CDT lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00
  12. 01:44:06 CDT eth0 303.92 293.14 272.91 37.40 0.00 0.00 0.00
  13. 01:44:06 CDT eth1 252.94 290.20 34.87 263.50 0.00 0.00 0.00
  14. Average: IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s
  15. Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00
  16. Average: eth0 210.37 202.34 163.19 35.66 0.00 0.00 0.00
  17. Average: eth1 178.93 191.64 33.36 171.60 0.00 0.00 0.00

至此关于Linux网络统计工具/命令的文章和大家分享结束，如果您有需要补充的可以在评论区进行留言。

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