Switch Features 219Power over Ethernet Provides power to devices over LAN connection.RADIUS Clients RADIUS is a client/server-based protocol. A RADIUS server maintains auser database, which contains per-user authentication information, suchas user name, password and accounting information.Rapid Spanning Tree Spanning Tree can take 30-60 seconds for each host to decide whether itsports are actively forwarding traffic. Rapid Spanning Tree (RSTP) detectsuses of network topologies to enable faster convergence, withoutcreating forwarding loops.Remote Monitoring Remote Monitoring (RMON) is an extension to SNMP, which providescomprehensive network traffic monitoring capabilities (as opposed toSNMP which allows network device management and monitoring).RMON is a standard MIB that defines current and historical MAC-layerstatistics and control objects, allowing real-time information to becaptured across the entire network.Self-Learning MAC Addresses The device enables automatic MAC address learning from incomingpackets. The MAC addresses are stored in the Bridging TableSNMP Alarms and Trap Logs The system logs events with severity codes and timestamps. Events aresent as SNMP traps to a Trap Recipient List.SNMP Versions 1 and 2 Simple Network Management Protocol (SNMP) over the UDP/IP protocolcontrols access to the system.Spanning Tree Protocol 802.1d Spanning tree is a standard Layer 2 switch requirement thatallows bridges to automatically prevent and resolve L2 forwarding loops.Switches exchange configuration messages using specifically formattedframes and selectively enable and disable forwarding on ports.SSL Secure Socket Layer (SSL) is an application-level protocol that enablessecure transactions of data through privacy, authentication, and dataintegrity. It relies upon certificates and public and private keys.Static MAC Entries MAC entries can be manually entered in the Bridging Table, as analternative to learning them from incoming frames. These user-definedentries are not subject to aging, and are preserved across resets andreboots.TCP Transport Control Protocol (TCP). TCP connections are defined between 2ports by an initial synchronization exchange. TCP ports are identified byan IP address and a 16-bit port number. Octets streams are divided intoTCP packets, each carrying a sequence number.TFTP Trivial File Transfer Protocol The device supports boot image, software and configurationupload/download via TFTP.Virtual Cable Testing VCT detects and reports copper link cabling occurrences, such as opencables and cable shorts.Table 9 Features of the OfficeConnect Managed Gigabit PoE Switch (continued)Feature Description