This document introduces QorIQ T series L2Switch Software architecture, describes how to use L2Swith demo application and SMBStax(L2Switch stack) to implement L2Switch supported features, which invoke APIs provided by L2 Switch user space driver. 1. T1040 L2Switch Ports Connectivity 2. T1040 L2 Switch Software Architecture 3. L2Switch Demo Application Feature and Usage      3.1 Control Ports and Statistics      3.2 Configure port based VLAN      3.3 Control MAC table 4. SMBStax Implement L2 Switch functions     4.1 Mirroring SPAN     4.2 802.1 X NetWork Access Server Configuration     4.3 QOS Configuration     4.4 L2Switch MAC Address Learing and Forwarding     4.5 L2Switch LLDP-MED feature

For achieving higher throughput using Network Stack QoS, one of the solution is to push the QoS logic from software to hardware. CEETM(Customer-edge egress-traffic management) is DPAA enhancement first appearing in QorIQ T series processors in QMan, it provides hierarchical class based scheduling and traffic shaping. CEETM provides the features dual-rate shaping, weighted CQ scheduling, congestion management, this document introduces these features implementing in USDPAA.