Represents a generic switch, such as a Layer 2 or Layer 3 switch, or a router that supportsLayer 2 forwarding and other Layer 2 features.Port numbering in examplesThe port numbers in this document are for illustration only and might be unavailable on your device.About the H3C S5120-SI documentation setThe H3C S5120-SI documentation set includes:Category Documents PurposesProductdescription andspecificationsMarketing brochures Describe product specifications and benefits.RPS Ordering Information for H3CLow-End Ethernet SwitchesProvides the RPS and switch compatibility matrix andRPS cable specifications.H3C Low End Series EthernetSwitches Pluggable ModulesManualDescribes the models, appearances, andspecifications of the pluggable modules available forthe products.HardwareinstallationQuick Start Guide Provides a quick guide to hardware installation.Installation ManualProvides a complete guide to hardware installationand hardware specifications.Provides regulatory information and the safetyinstructions that must be followed during installation.Pluggable SFP[SFP+][XFP]Transceiver Modules InstallationGuideGuides you through installing SFP/SFP+/XFPtransceiver modules.SoftwareconfigurationConfiguration guides Describe software features and configurationprocedures.Command references Provide a quick reference to all available commands.OperationsandmaintenanceRelease notesProvide information about the product release,including the version history, hardware and softwarecompatibility matrix, version upgrade information,technical support information, and softwareupgrading.Obtaining documentationYou can access the most up-to-date H3C product documentation on the World Wide Webat http://www.h3c.com.Click the links on the top navigation bar to obtain different categories of product documentation:[Technical Support & Documents > Technical Documents] – Provides hardware installation, softwareupgrading, and software feature configuration and maintenance documentation.[Products & Solutions] – Provides information about products and technologies, as well as solutions.