10 SCG1026 Dell Networking S4048-ON Switch Configuration Guide for PS Series SANs2.9 Configure spanning tree on edge portsDell(conf-if-range-te-1/1-48)#spanning-tree rstp edge-portDell(conf-if-range-te-1/1-48)#exitDell(conf)# protocol spanning-tree rstpDell(conf-rstp)#no disableDell(conf-rstp)#exit2.10 Configure port channel for LAGThese commands configure the switch interconnect as a LAG.Dell(conf)#interface Port-channel 1Dell(conf-if-po-1)#mtu 12000Dell(conf-if-po-1)#switchportDell(conf-if-po-1)#no shutdownDell(conf-if-po-1)#exit2.11 Configure QSFP ports for LAGThese commands assign 40Gb QSFP ports to the Port Channel.Dell(conf)#interface range fortyGigE 1/49 , fortyGigE 1/50Dell(conf-if-range-fo-1/49,fo-1/50)#no ip addressDell(conf-if-range-fo-1/49,fo-1/50)#mtu 12000Dell(conf-if-range-te-1/49,fo-1/50)#no shutdownDell(conf-if-range-fo-1/49,fo-1/50)#flowcontrol rx on tx offDell(conf-if-range-fo-1/49,fo-1/50)#port-channel-protocol lacpDell(conf-if-range-fo-1/49,fo-1/50-lacp)#port-channel 1 mode activeDell(conf-if-range-fo-1/49,fo-1/50-lacp)#exitDell(conf-if-range-fo-1/49,fo-1/50)#exitDell(conf)#exit2.12 Save configurationDell#copy running-config startup-config2.13 Configure additional switchRepeat the commands from sections 2.2–2.13 to configure the second switch.Note: The preceding procedure places all switch ports in the default VLAN. If you prefer to place ports ina non-default VLAN, refer to the documentation for your switch.