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AIX Study之--AIX網卡配置管理（ent0、en0、et0）
1、查看AIX系統網卡信息：
[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：
[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:
[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
# 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：
[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：
[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
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