(base) quejl@host:~$ ip 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
2: enp3s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP mode DEFAULT group default qlen 1000
    link/ether 0c:9d:92:63:64:34 brd ff:ff:ff:ff:ff:ff
3: enp1s0f0np0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP mode DEFAULT group default qlen 1000
    link/ether 08:c0:eb:97:d4:82 brd ff:ff:ff:ff:ff:ff
4: enp1s0f1np1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP mode DEFAULT group default qlen 1000
    link/ether 08:c0:eb:97:d4:83 brd ff:ff:ff:ff:ff:ff
5: tmfifo_net0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UNKNOWN mode DEFAULT group default qlen 1000
    link/ether 00:1a:ca:ff:ff:02 brd ff:ff:ff:ff:ff:ff
6: docker0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN mode DEFAULT group default 
    link/ether 02:42:f9:f2:c5:ce brd ff:ff:ff:ff:ff:ff
l0环回口
enp3s0pci编号为03:00.0以太网卡
enp1s0f0np0
enp1s0f1np1
tmfifo_net0
docker0

通过插拔网线和dmesg、lspci命令，enp3s0 pci编号为03:00.0以太网卡;

enp1s0f0np0 就是 pci编号为01:00.0以太网卡

(base) quejl@host:~$ dmesg
[ 3567.778574] r8169 0000:03:00.0 enp3s0: Link is Down
mlx5_core 0000:01:00.0: Port module event: module 0, Cable unplugged
(base) quejl@host:~$ lspci
00:00.0 Host bridge: Intel Corporation Xeon E3-1200 v6/7th Gen Core Processor Host Bridge/DRAM Registers (rev 05)
00:01.0 PCI bridge: Intel Corporation 6th-10th Gen Core Processor PCIe Controller (x16) (rev 05)
00:02.0 VGA compatible controller: Intel Corporation HD Graphics 630 (rev 04)
00:14.0 USB controller: Intel Corporation 200 Series/Z370 Chipset Family USB 3.0 xHCI Controller
00:16.0 Communication controller: Intel Corporation 200 Series PCH CSME HECI #1
00:17.0 SATA controller: Intel Corporation 200 Series PCH SATA controller [AHCI mode]
00:1c.0 PCI bridge: Intel Corporation 200 Series PCH PCI Express Root Port #5 (rev f0)
00:1c.7 PCI bridge: Intel Corporation 200 Series PCH PCI Express Root Port #8 (rev f0)
00:1d.0 PCI bridge: Intel Corporation 200 Series PCH PCI Express Root Port #9 (rev f0)
00:1f.0 ISA bridge: Intel Corporation 200 Series PCH LPC Controller (B250)
00:1f.2 Memory controller: Intel Corporation 200 Series/Z370 Chipset Family Power Management Controller
00:1f.3 Audio device: Intel Corporation 200 Series PCH HD Audio
00:1f.4 SMBus: Intel Corporation 200 Series/Z370 Chipset Family SMBus Controller
01:00.0 Ethernet controller: Mellanox Technologies MT42822 BlueField-2 integrated ConnectX-6 Dx network controller (rev 01)
01:00.1 Ethernet controller: Mellanox Technologies MT42822 BlueField-2 integrated ConnectX-6 Dx network controller (rev 01)
01:00.2 DMA controller: Mellanox Technologies MT42822 BlueField-2 SoC Management Interface (rev 01)
03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 15)

ens、eno、enp网口的区别
扩展知识内容：

en标识ethernet
o：主板板载网卡，集成是的设备索引号
p：独立网卡，PCI网卡
s：热插拔网卡，USB之类的扩展槽索引号
nnn（数字）：MAC地址+主板信息计算得出唯一序列
 

eno1：代表由主板bios内置的网卡

ens1:代表有主板bios内置的PCI-E网卡

enp2s0: PCI-E独立网卡

eth0：如果以上都不使用，则回到默认的网卡名
 

Linux网卡命名 - bfhyqy - 博客园

# linux # 服务器 # 网络
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