一，使用ip命令:
命令: ip -s link
-s[tatistics] : 统计
[root@web mysql]# ip -s link
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
RX: bytes packets errors dropped missed mcast
5119067602 4317489 0 0 0 0
TX: bytes packets errors dropped carrier collsns
5119067602 4317489 0 0 0 0
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP mode DEFAULT group default qlen 1000
link/ether ...
RX: bytes packets errors dropped missed mcast
7914191224 12011379 0 0 0 0
TX: bytes packets errors dropped carrier collsns
4243490577 8626349 0 0 0 0
altname enp0s6
altname ens6说明：
TX：发送流量RX：接收流量
二，使用ifconfig命令:
[root@web mysql]# ifconfig
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet ...
inet6 ...
ether ...
RX packets 12013047 bytes 7914402135 (7.3 GiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 8627500 bytes 4244454580 (3.9 GiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 1000 (Local Loopback)
RX packets 4318063 bytes 5119407050 (4.7 GiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 4318063 bytes 5119407050 (4.7 GiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0说明：ifconfig命令已经不被某些发行版内置安装，例如ubuntu 21.10,建议大家优先使用ip命令:
liuhongdi@lhdpc:/api$ ifconfig
Command 'ifconfig' not found, but can be installed with:
sudo apt install net-tools
三，查看实时的流量:
nload: 统计网卡上的流入和流出数量
可以统计到网卡
iftop: 统计各客户端到服务器的流量，
可以统计到ip
nethogs: 统计到各进程的流量
标签：00,errors,packets,bytes,网卡,dropped,linux,接收数据,RX From： https://www.cnblogs.com/architectforest/p/18438203