4-3Follow the step below to specify the main configuration file to be used at reboot:To do… Use the command… RemarksSpecify the main configuration file tobe used at next rebootstartup saved-configurationfilename [ main | backup ] RequiredIdentifying and Diagnosing Pluggable TransceiversIntroduction to pluggable transceiversAt present, four types of pluggable transceivers are commonly used, and they can be divided intooptical transceivers and electrical transceivers based on transmission media as shown in Table 4-1.Table 4-1 Commonly used pluggable transceiversTransceiver type Applied environment Whether can be anoptical transceiverWhether can be anelectrical transceiverSFP (SmallForm-factorPluggable)Generally used for100M/1000M Ethernetinterfaces or POS155M/622M/2.5GinterfacesYes YesGBIC (GigaBitInterface Converter)Generally used for1000M EthernetinterfacesYes YesXFP (10-Gigabit smallForm-factorPluggable)Generally used for10G EthernetinterfacesYes NoXENPAK (10 GigabitEtherNet TransceiverPackage)Generally used for10G EthernetinterfacesYes YesFor pluggable transceivers supported by the device, refer to 3Com WX3000 Series Unified SwitchesInstallation Manual.Identifying pluggable transceiversAs pluggable transceivers are of various types and from different vendors, you can perform thefollowing configurations to identify main parameters of the pluggable transceivers, including transceivertype, connector type, central wavelength of the laser sent, transfer distance and vendor name or vendorname specified.
