NDPF Dell switch config

Setting up the Dell 5x24 switch

connect a serial cable (9600 8N1) and login to the box

 enable

(and provide password when asked for)

Then, enable the portfast feature on all ethernet interfaces

 configure
 int range ethe all
 spanning-tree portfast

now you are ready to connect nodes to the switch and use DHCP to install these nodes. If you do not enable portfast, the DHCP timeout is shorter than the STP negotiation and thus DHCP will fail.