1、ethtool ethtool 網絡接口名 #ethtool em4 Settings for em4: Supported ports: [ TP ] Supported link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Full 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: Unknown Supports Wake-on: g Wake-on: d Link detected: yes
2、lspci 當前是博通BCM5709千兆網卡Gigabit（萬兆網卡顯示為10-Gigabit） #lspci -vvv | grep Ethernet 01:00.0 Ethernet controller: Broadcom Corporation NetXtreme II BCM5709 GigabitEthernet (rev 20) Subsystem: Dell PowerEdge R710 BCM5709 Gigabit Ethernet Product Name: Broadcom NetXtreme II Ethernet Controller 01:00.1 Ethernet controller: Broadcom Corporation NetXtreme II BCM5709 Gigabit Ethernet (rev 20) Subsystem: Dell PowerEdge R710 BCM5709 Gigabit Ethernet Product Name: Broadcom NetXtreme II Ethernet Controller 02:00.0 Ethernet controller: Broadcom Corporation NetXtreme II BCM5709 Gigabit Ethernet (rev 20) Subsystem: Dell PowerEdge R710 BCM5709 Gigabit Ethernet Product Name: Broadcom NetXtreme II Ethernet Controller 02:00.1 Ethernet controller: Broadcom Corporation NetXtreme II BCM5709 Gigabit Ethernet (rev 20) Subsystem: Dell PowerEdge R710 BCM5709 Gigabit Ethernet Product Name: Broadcom NetXtreme II Ethernet Controller pcilib: sysfs_read_vpd: read failed: Connection timed out 小知識： Gigabit是數據存儲的單位，通常用符號Gbit或Gb表示。它的換算公式：1 Gb = 10的9次方 bits = 1,000,000,000 bits 。 另一個常見的單位是Gibibit，gibibit是用來表示二進制換算的，1 gibibit = 2的30次方 bits = 1,073,741,824 bits。