104 CHAPTER 9: P ORT BASIC CONFIGURATION# After you disable Ethernet 1/0/1 from outputting Up/Down log information andexecute the shutdown command or the undo shutdown command on Ethernet1/0/1, no Up/Down log information is output for Ethernet 1/0/1.[4210-Ethernet1/0/1] undo enable log updown[4210-Ethernet1/0/1] shutdown[4210-Ethernet1/0/1] undo shutdownDisplaying andMaintaining Basic PortConfigurationEthernet PortConfigurationExampleNetwork requirements■ Switch A and Switch B are connected to each other through two trunk port(Ethernet 1/0/1).■ Configure the default VLAN ID of both Ethernet 1/0/1 to 100.■ Allow the packets of VLAN 2, VLAN 6 through VLAN 50 and VLAN 100 to passboth Ethernet 1/0/1.Network diagramFigure 37 Network diagram for Ethernet port configurationTable 69 Display and maintain basic port configurationOperation Command RemarksDisplay port configurationinformationdisplay interface [interface-type | interface-typeinterface-number ]You can execute the displaycommands in any view.Display information about SFPmodule on a specified portdisplaytransceiver-informationinterface interface-typeinterface-numberDisplay the enable/disablestatus of port loopbackdetectiondisplay loopback-detectionDisplay brief informationabout port configurationdisplay brief interface [interface-type [interface-number ] ] [ | { begin| include | exclude }regular-expression ]Display the ports that are of aspecific typedisplay port { hybrid | trunk| combo }Display port informationabout a specified unitdisplay unit unit-idinterfaceClear port statistics reset counters interface [interface-type | interface-typeinterface-number ]You can execute the resetcommand in user view.After 802.1x is enabled on aport, clearing the statistics onthe port will not work.Eth1/0/1 Eth1/0/1Switch A Switch BEth1/0/1 Eth1/0/1Switch A Switch B
