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Linux网络统计工具/命令
时间:2016-05-11 21:58 浏览:7

摘要

我在Linux(基于CentOS 或者 Debian 的发行版)中该如何查看当前网络端口吞吐量的统计信息?在Linux操作系统中如何查看当前内核snmp计数器以及网络端口的统计信息?

你可以使用以下任何一个命令:

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):

sar -n DEV
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:

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

via: http://www.cyberciti.biz/faq/network-statistics-tools-rhel-centos-debian-linux/

作者:nixCraft 译者:ictlyh 校对:wxy

本文由 LCTT 原创翻译,Linux中国 荣誉推出



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