Shulou(Shulou.com)06/03 Report--

AIX Study-- AIX network card configuration management (ent0, en0, et0)

1. View the network card information of the AIX system:

[root@aix211 /] # lsdev | grep et

En0 Available 1L-08 Standard Ethernet Network Interfaceen1 Available 14-08 Standard Ethernet Network Interfaceen2 Defined 1D-08 Standard Ethernet Network Interfaceent0 Available 1L-08 10 Mbps Ethernet PCI Adapter II (1410ff01) ent1 Available 14-08 10 ent2 Available 1D-08 100 Mbps Ethernet PCI Adapter II (1410ff01) 100 Mbps Ethernet PCI Adapter II (1410ff01) et0 Defined 1L-08 IEEE 802.3 Ethernet Network Interfaceet1 Defined 14-08 IEEE 802.3 Ethernet Network Interfaceet2 Defined 1D-08 IEEE 802.3 Ethernet Network Interface

From this we can see that:

Things like ent1 are the device names of physical network cards, en0 or et0 is the name of the network interface (logically), enx (x is a number, which represents the number of network cards) is the standard Ethernet interface, and et0 is the IEEE 802.3 Ethernet interface.

En0 is Ethernet II protocal interface.

Et0 is 802.3 protocal interface

Ent0 is Hardware device interface.

2. View the attributes of the Nic:

[root@aix211 /] # lsattr-El en0alias4 IPv4 Alias including Subnet Mask Truealias6 IPv6 Alias including Prefix Length Truearp on Address Resolution Protocol (ARP) Trueauthority Authorized Users Truebroadcast Broadcast Address Truemtu 1500 Maximum IP Packet Size for This Device Truenetaddr 192.168.8.211 Internet Address Truenetaddr6 IPv6 Internet Address Truenetmask 255.255.255.0 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 up 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 [root@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 [root@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 [root@aix211 /] #

3. Check the configuration of the network card:

[root@aix211 /] # lscfg-vpl en0 [root@aix211 /] # lscfg-vpl et0 [root@aix211 /] # lscfg-vpl ent0 ent0 U0.1-P1/E2 10 Mbps Ethernet PCI Adapter II (1410ff01) 10 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

The location of the Physical Location can determine whether the network card is plugged into the PCI interface.

[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 to 100 Mbps Ethernet PCI Adapter II (1410ff01) 10 to 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

-as you can see, the ent2 is plugged into the pci slot

Physical and logical Devic

1. Physical equipment refers to the actual hardware connected to the computer system in some way. Such as monitors, terminals, tape drives, etc.

2. Logical devices are the interface for users or applications to access physical devices, and users or applications access physical devices through logical devices.

3. In many cases, a physical device corresponds to multiple logical devices

View physical devices:

[root@aix211 /] # lsdev-Cc adapterent0 Available 1L-08 10 Mbps Ethernet PCI Adapter II 100 Mbps Ethernet PCI Adapter II (1410ff01) ent1 Available 14-08 10 Mbps Ethernet PCI Adapter II (1410ff01) 10 Mbps Ethernet PCI Adapter II (1410ff01) fcs0 Available 1n-08 FC Adapter

View logical devices:

[root@aix211 /] # lsdev-Cc ifen0 Available 1L-08 Standard Ethernet Network Interfaceen1 Available 14-08 Standard Ethernet Network Interfaceen2 Defined 1D-08 Standard Ethernet Network Interfaceet0 Defined 1L-08 IEEE 802.3 Ethernet Network Interfaceet1 Defined 14-08 IEEE 802.3 Ethernet Network Interfaceet2 Defined 1D-08 IEEE 802.3 Ethernet Network Interface

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