Posted on 2009-05-12 11:12
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LINUX/UNIX/AIX
Piner寫過一篇文章介紹AIX中網卡的治理和配置，這里想補充一些相關的信息。本文中所有試驗都基于AIX 5.3。
AIX中查看零碎中的網卡設備
#lsdev -Cc adapter | grep ent
ent0 Available 00-08 10/100/1000 Base-TX PCI-X Adapter (14106902)
ent1 Available 07-08 2-Port 10/100/1000 Base-TX PCI-X Adapter (14108902)
ent2 Available 07-09 2-Port 10/100/1000 Base-TX PCI-X Adapter (14108902)
ent3 Available 0B-08 10/100/1000 Base-TX PCI-X Adapter (14106902)
ent4 Available EtherChannel / IEEE 802.3ad Link Aggregation
從上面可以看出，零碎中共有四塊網卡(ent0~ent3，而ent4是由多塊網卡綁定出來的虛擬網卡EtherChannel，關于網卡綁定，請參考piner的另一篇文章。
那么，四塊網卡具體是插在哪個插槽上的呢？
#lsslot -c pci | grep entU787B.001.DNW6FCB-P1-C2 PCI-X capable, 64 bit, 133MHz slot ent3
U787B.001.DNW6FCB-P1-C3 PCI-X capable, 64 bit, 266MHz slot ent0
上述命令顯示的是插在PCI插槽上的兩塊網卡，都是在第一個PCI籠子中，分別在第二個和第三個插槽。另外兩塊則是主板上內置的網卡，不是插在PCI槽上的。
#lscfg -v | grep ent
Model Implementation: Multiple Processor, PCI bus
ent1 U787B.001.DNW6FCB-P1-T9 2-Port 10/100/1000 Base-TX PCI-X Adapter (14108902)
ent2 U787B.001.DNW6FCB-P1-T10 2-Port 10/100/1000 Base-TX PCI-X Adapter (14108902)
ent3 U787B.001.DNW6FCB-P1-C2-T1 10/100/1000 Base-TX PCI-X Adapter (14106902)
ent0 U787B.001.DNW6FCB-P1-C3-T1 10/100/1000 Base-TX PCI-X Adapter (14106902)
AIX中，一個網卡在零碎中實際上可以看到兩個設備接口，en開頭的是Ethernet II標準的，et開頭的是IEEE
802.3標準的。以太網的幀有兩種標準：Ethernet II(或者叫Standard
Ethernet)和IEEE802.3，兩者主要是標志幀的下層協議的方式不一樣，Ethernet
II使用了一個TYPE值表示，而IEEE802.3則使用一個數據LENGTH表示。一般來說，Ethernnet II更常用。
#lsdev -Cc if
en0 Defined 00-08 Standard Ethernet Network Interface
en1 Defined 07-08 Standard Ethernet Network Interface
en2 Defined 07-09 Standard Ethernet Network Interface
en3 Defined 0B-08 Standard Ethernet Network Interface
en4 Available Standard Ethernet Network Interface
et0 Defined 00-08 IEEE 802.3 Ethernet Network Interface
et1 Defined 07-08 IEEE 802.3 Ethernet Network Interface
et2 Defined 07-09 IEEE 802.3 Ethernet Network Interface
et3 Defined 0B-08 IEEE 802.3 Ethernet Network Interface
et4 Defined IEEE 802.3 Ethernet Network Interface
lo0 Available Loopback Network Interface
其中lo0表示本地回環接口，也就是127.0.0.1
查看某塊網卡的具體屬性
#lsattr -El ent1
alt_addr 0x000000000000 Alternate ethernet address True
busintr 273 Bus interrupt level False
busmem 0xf8120000 Bus memory address False
chksum_offload yes Enable hardware transmit and receive checksum True
compat_mode no Gigabit Backward compatability True
copy_bytes 2048 Copy packet if this many or less bytes True
delay_open no Enable delay of open until link state is known True
failback yes Enable auto failback to primary True
failback_delay 15 Failback to primary delay timer True
failover disable Enable failover mode True
flow_ctrl yes Enable Transmit and Receive Flow Control True
intr_priority 3 Interrupt priority False
intr_rate 10000 Max rate of interrupts generated by adapter True
jumbo_frames no Transmit jumbo frames True
large_send yes Enable hardware TX TCP resegmentation True
media_speed Auto_Negotiation Media speed True
rom_mem 0xf80c0000 ROM memory address False
rx_hog 1000 Max rcv buffers processed per rcv interrupt True
rxbuf_pool_sz 2048 Rcv buffer pool, make 2X rxdesc_que_sz True
rxdesc_que_sz 1024 Rcv descriptor queue size True
slih_hog 10 Max Interrupt events processed per interrupt True
tx_que_sz 8192 Software transmit queue size True
txdesc_que_sz 512 TX descriptor queue size True
use_alt_addr no Enable alternate ethernet address True
查看某個網卡設備接口的屬性
#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 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
#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
修改接口屬性，比如設置IP和子網掩碼
#chdev -l en1 -a netaddr='192.168.1.1' -a netmask='255.255.255.0'
而ifconfig只能查看和修改網線已經連接好的網卡信息
#ifconfig -a
en4: flags=5e080863,c0<UP,BROADCAST,NOTRAILERS,RUNNING,SIMPLEX,MULTICAST,GROUPRT,64BIT,CHECKSUM_OFFLOAD,PSEG,CHAIN>
inet 192.168.1.1 netmask 0xffffff00 broadcast 192.168.1.255
tcp_sendspace 131072 tcp_recvspace 65536
lo0: flags=e08084b<UP,BROADCAST,LOOPBACK,RUNNING,SIMPLEX,MULTICAST,GROUPRT,64BIT>
inet 127.0.0.1 netmask 0xff000000 broadcast 127.255.255.255
inet6 ::1/0
tcp_sendspace 131072 tcp_recvspace 131072 rfc1323 1
假如使用ifconfig操作沒有連接網絡的網卡則會報錯
#ifconfig en1 up
0821-510 ifconfig: error calling entry point for /usr/lib/drivers/if_en: The specified device does not exist.
smit操作網卡相關命令
smit mkinet添加新的網卡接口
smit chinet配置網卡接口
smit tcpip配置tcpip網絡
smit mktcpip配置IP地址
smit chgenet配置網卡設備
smit rminet刪除網卡接口
smit etherchannel配置網卡綁定
smit inet配置網卡接口，包括mkinet,chinet,rminet等命令入口
作者：NinGoo | 【轉載時請務必以超鏈接形式標明文章原始出處和作者信息及本聲明】
地址：http://www.ningoo.net/html/2007/aix_5l_network_interface.html