AIX Study之--AIX网卡配置管理（ent0、en0、et0）

小灰灰 2022-08-02 02:28 313阅读 0赞

**AIX Study之--AIX网卡配置管理（ent0、en0、et0）**

**1、查看AIX系统网卡信息:**

**\[root@aix211 /\]\#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 interfac**e

**2、查看网卡属性：**

[root@aix211 /]#lsattr -El en0
    alias4                      IPv4 Alias including Subnet Mask           True
    alias6                      IPv6 Alias including Prefix Length         True
    arp           on            Address Resolution Protocol (ARP)          True
    authority                   Authorized Users                           True
    broadcast                   Broadcast Address                          True
    mtu           1500          Maximum IP Packet Size for This Device     True
    netaddr       192.168.8.211 Internet Address                           True
    netaddr6                    IPv6 Internet Address                      True
    netmask       255.255.255.0 Subnet Mask                                True
    prefixlen                   Prefix Length for IPv6 Internet Address    True
    remmtu        576           Maximum IP Packet Size for REMOTE Networks True
    rfc1323                     Enable/Disable TCP RFC 1323 Window Scaling True
    security      none          Security Level                             True
    state         up            Current Interface Status                   True
    tcp_mssdflt                 Set TCP Maximum Segment Size               True
    tcp_nodelay                 Enable/Disable TCP_NODELAY Option          True
    tcp_recvspace               Set Socket Buffer Space for Receiving      True
    tcp_sendspace               Set Socket Buffer Space for Sending        True

[root@aix211 /]#lsattr -El et0
    alias4             IPv4 Alias including Subnet Mask           True
    alias6             IPv6 Alias including Prefix Length         True
    arp           on   Address Resolution Protocol (ARP)          True
    authority          Authorized Users                           True
    broadcast          Broadcast Address                          True
    mtu           1492 Maximum IP Packet Size for This Device     True
    netaddr            Internet Address                           True
    netaddr6           IPv6 Internet Address                      True
    netmask            Subnet Mask                                True
    prefixlen          Prefix Length for IPv6 Internet Address    True
    remmtu        576  Maximum IP Packet Size for REMOTE Networks True
    rfc1323            Enable/Disable TCP RFC 1323 Window Scaling True
    security      none Security Level                             True
    state         down Current Interface Status                   True
    tcp_mssdflt        Set TCP Maximum Segment Size               True
    tcp_nodelay        Enable/Disable TCP_NODELAY Option          True
    tcp_recvspace      Set Socket Buffer Space for Receiving      True
    tcp_sendspace      Set Socket Buffer Space for Sending        True

[root@aix211 /]#lsattr -El ent0
    alt_addr        0x000000000000   Alternate Ethernet Address                    True
    busintr         85               Bus interrupt level                           False
    busmem          0xc8030000       Bus memory address                            False
    chksum_offload  yes              Enable hardware transmit and receive checksum True
    intr_priority   3                Interrupt priority                            False
    ipsec_offload   no               IPsec Offload                                 True
    large_send      yes              Enable TCP Large Send Offload                 True
    media_speed     Auto_Negotiation Media Speed                                   True
    poll_link       no               Enable Link Polling                           True
    poll_link_timer 500              Time interval for Link Polling                True
    rom_mem         0xc8000000       ROM memory address                            False
    rx_hog          1000             RX Descriptors per RX Interrupt               True
    rxbuf_pool_sz   1024             Receive Buffer Pool Size                      True
    rxdesc_que_sz   512              RX Descriptor Queue Size                      True
    slih_hog        10               Interrupt Events per Interrupt                True
    tx_preload      1520             TX Preload Value                              True
    tx_que_sz       8192             Software TX Queue Size                        True
    txdesc_que_sz   512              TX Descriptor Queue Size                      True
    use_alt_addr    no               Enable Alternate Ethernet Address             True
    [root@aix211 /]#

**3、查看网卡配置:**

[root@aix211 /]#lscfg -vpl en0
    [root@aix211 /]#lscfg -vpl et0
    [root@aix211 /]#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:  ethernet@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

**\[root@aix211 /\]\#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  
  
\[root@aix211 /\]\#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：**

**\[root@aix211 /\]\#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：**

**\[root@aix211 /\]\#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**