1、查看AIX系統網卡信息：

[root@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

由此可以看出：

ent1之類的是物理網卡的設備名，en0或是et0是網絡接口名(邏輯上的)，enx(x是一個數字，代表第幾塊網卡)是標準以太網接口，et0是IEEE 802.3以太網接口。

en0是Ethernet II protocal interface

et0是802.3 protocal interface?

ent0是Hardware device interface

2、查看網卡屬性：

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[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、查看網卡配置:

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[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的位置可以判斷網卡是否是插在PCI接口上的

[root@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

[root@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

--- 可以看出，ent2是插在pci插槽上

物理設備和邏輯設備

1、物理設備是指以某種方式與計算機系統相連的實際硬件。例如顯示器、終端、磁帶機等。

2、邏輯設備是用戶或應用程序訪問物理設備的界面，用戶或應用程序通過邏輯設備來訪問物理設備。

3、在很多情況下，一個物理設備會對應多個邏輯設備

查看物理設備：

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[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

查看邏輯設備：

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[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

本文轉自 客居天涯 51CTO博客，原文鏈接：http://blog.51cto.com/tiany/1671738，如需轉載請自行聯系原作者

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