The flowcontrol default setting is off. The cli guide has some additional information on flowcontrol command. Page 196:[URL] Here is a white paper with some additional information and consideration on when to use flow control. [URL]  The enumerations you are seeing is normal. When the command  stack-unit 0 port 33 portmode quad is issued, the 40Gb port is split up unit four 10Gb interface, resulting in 0/33,0/34,0/35, and 0/36. Hope this information helps.
Hi, I am trying to configure Dell M IO Aggregator my self need some guidance.   I am seeing below details when i run show running-configuration on M IO Aggregator, i was referring  dell document it says this are showing when there is a split cable with 40 gig. stack-unit 0 port 33 portmode quad!stack-unit 0 port 37 portmode quad!stack-unit 0 port 41 portmode quad!stack-unit 0 port 45 portmode quad!stack-unit 0 port 49 portmode quad!stack-unit 0 port 53 portmode quad! but when we check show lldp show lldp neighbors , the upstream interfaces i see  Te 0/33,0/34,0/36,0/37,0/38,0/39,0/40  ports on the switch. i am confused could you please explain this.   other thing when i compare both switches with running-configuration i can see some difference. switch 1interface TenGigabitEthernet 0/1 mtu 12000 portmode hybrid switchport vlan tagged 39 flowcontrol rx on tx off! protocol lldp no shutdown!switch 2interface TenGigabitEthernet 0/1 mtu 12000 portmode hybrid switchport vlan tagged 39! protocol lldp no shutdown!  on switch 1 i see  flowcontrol rx on tx off , but not on switch 2 do we need this option on both or it should not be please help me   Thank you.
Dell M IO Aggregator configuration guidance required