1、首先查看机器网络端口

[root@namenode ~]# ifconfig eno1: flags=4163  mtu 1500         inet 192.168.60.190  netmask 255.255.255.0  broadcast 192.168.80.255         inet6 fe80::b62e:99ff:fe65:3bd6  prefixlen 64  scopeid 0x20         ether b4:2e:99:65:3b:d6  txqueuelen 1000  (Ethernet)         RX packets 1034361639  bytes 496433512301 (462.3 GiB)         RX errors 0  dropped 144034  overruns 0  frame 0         TX packets 977985340  bytes 163296216477 (152.0 GiB)         TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0         device interrupt 16  memory 0xf7200000-f7220000  

2、查看端口带宽(root或sudo权限)，通过下面输出可以看到speed那一行，表示千兆网。

[root@namenode ~]# sudo ethtool eno1 Settings for eno1:     Supported ports: [ TP ]     Supported link modes:   10baseT/Half 10baseT/Full                              100baseT/Half 100baseT/Full                              1000baseT/Full      Supported pause frame use: No     Supports auto-negotiation: Yes     Advertised link modes:  10baseT/Half 10baseT/Full                              100baseT/Half 100baseT/Full                              1000baseT/Full      Advertised pause frame use: No     Advertised auto-negotiation: Yes     Speed: 1000Mb/s     Duplex: Full     Port: Twisted Pair     PHYAD: 1     Transceiver: internal     Auto-negotiation: on     MDI-X: off (auto)     Supports Wake-on: pumbg     Wake-on: g     Current message level: 0x00000007 (7)                    drv probe link     Link detected: yes