1、查看AIX系统网卡信息：
[iyunv@aix211 /]#lsdev |grep et
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| 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
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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： 1
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| [iyunv@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
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[iyunv@aix211 /]#lsattr -El et0alias4 IPv4 Alias including Subnet Mask Truealias6 IPv6 Alias including Prefix Length Truearp on Address Resolution Protocol (ARP) Trueauthority Authorized Users Truebroadcast Broadcast Address Truemtu 1492 Maximum IP Packet Size for This Device Truenetaddr Internet Address Truenetaddr6 IPv6 Internet Address Truenetmask Subnet Mask Trueprefixlen Prefix Length for IPv6 Internet Address Trueremmtu 576 Maximum IP Packet Size for REMOTE Networks Truerfc1323 Enable/Disable TCP RFC 1323 Window Scaling Truesecurity none Security Level Truestate down Current Interface Status Truetcp_mssdflt Set TCP Maximum Segment Size Truetcp_nodelay Enable/Disable TCP_NODELAY Option Truetcp_recvspace Set Socket Buffer Space for Receiving Truetcp_sendspace Set Socket Buffer Space for Sending True[iyunv@aix211 /]#lsattr -El ent0alt_addr 0x000000000000 Alternate Ethernet Address Truebusintr 85 Bus interrupt level Falsebusmem 0xc8030000 Bus memory address Falsechksum_offload yes Enable hardware transmit and receive checksum Trueintr_priority 3 Interrupt priority Falseipsec_offload no IPsec Offload Truelarge_send yes Enable TCP Large Send Offload Truemedia_speed Auto_Negotiation Media Speed Truepoll_link no Enable Link Polling Truepoll_link_timer 500 Time interval for Link Polling Truerom_mem 0xc8000000 ROM memory address Falserx_hog 1000 RX Descriptors per RX Interrupt Truerxbuf_pool_sz 1024 Receive Buffer Pool Size Truerxdesc_que_sz 512 RX Descriptor Queue Size Trueslih_hog 10 Interrupt Events per Interrupt Truetx_preload 1520 TX Preload Value Truetx_que_sz 8192 Software TX Queue Size Truetxdesc_que_sz 512 TX Descriptor Queue Size Trueuse_alt_addr no Enable Alternate Ethernet Address True[iyunv@aix211 /]#3、查看网卡配置:
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| [iyunv@aix211 /]#lscfg -vpl en0
[iyunv@aix211 /]#lscfg -vpl et0
[iyunv@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
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Physical Location的位置可以判断网卡是否是插在PCI接口上的
[iyunv@aix211 /]#lsslot -c pci
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| # 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
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[iyunv@aix211 /]#lscfg -vpl ent2
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| 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
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--- 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：
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| [iyunv@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
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查看逻辑设备：
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| [iyunv@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
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| 
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