AIX使用命令修改网卡IP地址，永久生效

比如修改en0的ip地址。
chdev -l en0 -a netaddr=192.168.1.100 -a netmask=255.255.255.0 -a state=up

启用en0 网卡
ifconfig en0 up

AIX Study之--AIX网卡配置管理（ent0、en0、et0）

1、查看AIX系统网卡信息:

[[email protected] /]#lsdev |grep et

en0        Available 1L-08         Standard Ethernet Network Interface
en1        Available 14-08         Standard Ethernet Network Interface
en2        Defined   1D-08         Standard Ethernet Network Interface
ent0       Available 1L-08         10/100 Mbps Ethernet PCI Adapter II (1410ff01)
ent1       Available 14-08         10/100 Mbps Ethernet PCI Adapter II (1410ff01)
ent2       Available 1D-08         10/100 Mbps Ethernet PCI Adapter II (1410ff01)
et0        Defined   1L-08         IEEE 802.3 Ethernet Network Interface
et1        Defined   14-08         IEEE 802.3 Ethernet Network Interface
et2        Defined   1D-08         IEEE 802.3 Ethernet Network Interface

由此可以看出：

ent1之类的是物理网卡的设备名，en0或是et0是网络接口名(逻辑上的)，enx(x是一个数字，代表第几块网卡)是标准以太网接口，et0是IEEE 802.3以太网接口。

en0是Ethernet II protocal interface

et0是802.3 protocal interface

ent0是Hardware device interface

2、查看网卡属性：

lsattr -El en0

lsattr -El et0

lsattr -El ent0

3、查看网卡配置:

[[email protected] /]#lscfg -vpl en0
[[email protected] /]#lscfg -vpl et0
[[email protected] /]#lscfg -vpl ent0
  ent0             U0.1-P1/E2  10/100 Mbps Ethernet PCI Adapter II (1410ff01)
    10/100 Mbps Ethernet PCI Adapter II:
        Network Address.............000255CF1406
        ROM Level.(alterable).......SCU015
        Product Specific.(Z0).......A5204205
        Hardware Location Code......U0.1-P1/E2
  PLATFORM SPECIFIC
  Name:  ethernet
    Node:  [email protected]1
    Device Type:  network

Physical Location: U0.1-P1/E2

Physical Location的位置可以判断网卡是否是插在PCI接口上的

[[email protected] /]#lsslot -c pci
# Slot      Description                         Device(s)
U0.1-P2-I1  PCI-X capable, 64 bit, 133MHz slot  Empty
U0.1-P2-I2  PCI-X capable, 64 bit, 133MHz slot  Empty
U0.1-P2-I3  PCI-X capable, 64 bit, 133MHz slot  fcs0
U0.1-P2-I4  PCI-X capable, 64 bit, 133MHz slot  Empty
U0.1-P2-I5  PCI-X capable, 64 bit, 133MHz slot  ent2
U0.1-P2-I6  PCI-X capable, 64 bit, 133MHz slot  Empty

[[email protected] /]#lscfg -vpl ent2
  ent2             U0.1-P2-I5/E1  10/100 Mbps Ethernet PCI Adapter II (1410ff01)
      10/100 Mbps Ethernet PCI Adapter II:
        Part Number.................09P5023
        FRU Number..................09P5023
        EC Level....................H10971A
        Manufacture ID..............YL1021
        Network Address.............000255AF8DAD
        ROM Level.(alterable).......SCU004
        Product Specific.(Z0).......A5204205
        Hardware Location Code......U0.1-P2-I5/E1

--- 可以看出，ent2是插在pci插槽上

物理设备和逻辑设备

1、物理设备是指以某种方式与计算机系统相连的实际硬件。例如显示器、终端、磁带机等。

2、逻辑设备是用户或应用程序访问物理设备的界面，用户或应用程序通过逻辑设备来访问物理设备。

3、在很多情况下，一个物理设备会对应多个逻辑设备

查看物理设备：
[[email protected] /]#lsdev -Cc adapter
ent0    Available 1L-08    10/100 Mbps Ethernet PCI Adapter II (1410ff01)
ent1    Available 14-08    10/100 Mbps Ethernet PCI Adapter II (1410ff01)
ent2    Available 1D-08    10/100 Mbps Ethernet PCI Adapter II (1410ff01)
fcs0    Available 1n-08    FC Adapter
查看逻辑设备：
[[email protected] /]#lsdev -Cc if
en0 Available 1L-08 Standard Ethernet Network Interface
en1 Available 14-08 Standard Ethernet Network Interface
en2 Defined   1D-08 Standard Ethernet Network Interface
et0 Defined   1L-08 IEEE 802.3 Ethernet Network Interface
et1 Defined   14-08 IEEE 802.3 Ethernet Network Interface
et2 Defined   1D-08 IEEE 802.3 Ethernet Network Interface

原文地址：https://www.cnblogs.com/dahaoran/p/9483915.html