Software featuresThe CE0128T Switch has the following software features:Scalability and performance:Media access control (MAC) address learningStatic and LACP (IEEE 802.3ad) link aggregation groups (LAGs)Broadcast storm controlIGMP snooping for limit flooding of IP multicast trafficIGMP filtering to control multicast traffic for hosts participating in multicast groupsConfigurable traffic distribution schemes over LAGs based on source/destination IP or MACAvailability and redundancy:IEEE 802.1D STP for providing L2 redundancyIEEE 802.1s Multiple STP (MSTP) for topology optimizationIEEE 802.1w Rapid STP (RSTP) (rapid convergence for delay-sensitive traffic such as voice)Rapid Link Detection Protocol (RLDP) for L2 link failure detectionVLAN support:Port-based and protocol-based VLANsUp to 4094 VLANs supported per switch802.1Q VLAN tagging support on all ports802.1Q-in-Q VLAN tunneling802.1x with dynamic VLAN assignmentPrivate VLANsStacking:Up to 8 switches in a stackSingle IP managementLess than 100 milliseconds failover time in case of a member switch failureLine and ring stacking topologiesLink aggregation across member devicesMulti-Active Detection (MAD) via bi-directional forwarding detection (BFD) or link aggregationSecurity:MAC-based and IP-based access control lists (ACLs)802.1x port-based network access controlMultiple local user IDs and passwordsUser access controlRadius and TACACS+ authentication and authorizationProtection from Denial of Service (DoS) attacksDHCP snooping (IPv4/IPv6)Quality of Service (QoS):IEEE 802.1p, IP ToS/DSCP, MAC/IP, and port traffic classification and processingTraffic shaping and re-marking based on defined policiesEight priority queues per port for processing qualified trafficStrict-Priority (SP) schedulingWeighted Round Robin (WRR) schedulingWeighted Fair Queueing (WFQ) schedulingIPv4/IPv6 ACL meteringIP v4 Layer 3 functions:Host managementIP filtering with ACLsStatic routesDHCP server, client and relay operationsIGMP v1/v2 snoopingLenovo CE0128T Switch (Gigabit Ethernet) 7