Deploying the Dell Force10 MXL into a Cisco Nexus Network Environment3ContentsIntroduction .............................................................................................................. 5Content Overview ..................................................................................................... 6Document Conventions ............................................................................................... 7Device Introduction ................................................................................................... 8Dell Force10 MXL Deployment ...................................................................................... 12Initial Configuration ................................................................................................. 12Access Port Downlink Configuration .............................................................................. 16Trunk Port Downlink Configuration ............................................................................... 18Link Aggregation Group Configuration ........................................................................... 20Trunk Port Uplink Configuration with MLAG at Top of Rack ................................................. 21Trunk Port Uplink Configuration with Per-VLAN Spanning Tree ............................................. 27Spanning Tree Protocol Failover and Failback Observations .................................................. 31Lab Environment ..................................................................................................... 31Nexus MSTP and MXL MSTP Observations ........................................................................ 32Nexus MSTP and MXL MSTP – Remainder of Test Observations .............................................. 37Nexus MSTP and MXL MSTP – Greater than 64 Instances ...................................................... 38Nexus Rapid PVST+ and MXL PVST Observations ............................................................... 38Nexus Rapid PVST+ and MXL PVST – Remainder of Test Observations ...................................... 42Summary – Spanning Tree Observations ......................................................................... 42Appendices ............................................................................................................. 43Appendix A: Referenced Network Topology and Device Configurations ................................... 43Appendix B: Basic Terminology ................................................................................... 54