Operation Manual – Ethernet InterfaceH3C S9500 Series Routing Switches Chapter 1 Ethernet Interface Configuration1-3To do… Use the command… RemarksConfigure a value forJ0/J1 bytes when the10GE interface operatesin WAN mode.flag { j0 | j1 } sdhflag-valueOptionalBy default, the value ofthe J0/J1 bytes is 0.Note:z The flag command is available only when the 10GE interface is operating in WANmode.z WAN mode is not supported on LSB1XP4CA, LSB1XK1DB, and LSB1XP4Bboards.1.1.3 Basic Ethernet Interface ConfigurationThree types of duplex modes are available for Ethernet interfaces:z Full-duplex mode (full). Interfaces operating in this mode can send and receivepackets simultaneously.z Half-duplex mode (half). Interfaces operating in this mode can either send orreceive packets at a given time.z Auto-negotiation mode (auto). Interfaces operating in this mode determine theirduplex mode through auto-negotiation.If you configure the transmission rate for an Ethernet interface with the speed autocommand, the transmission rate is determined through auto-negotiation.Follow these steps to perform basic Ethernet interface configurations:To do... Use the command... RemarksEnter system view system-view —Enter Ethernet interfaceviewinterface interface-typeinterface-number —Set the descriptiveinformation for theEthernet interfacedescription textOptionalBy default, the descriptiveinformation is “interfaceindex + Interface”.Set the duplex mode duplex { auto | full | half } Optionalauto by default.Set the transmission rate speed { 10 | 100 | 1000 |auto }Optionalauto by default.