Dell PS4000 Configuration Manual page 69

changed, the switch must reset before the new configuration takes effect. If a value is entered that is
outside the allowed range for the specific type of interface, the value is not accepted.
Use the following commands to configure Jumbo Frames, which sets the maximum packet size to 9000
bytes:
Switch> enable
Switch# config terminal
Switch(config)# system mtu jumbo 9000
Switch(config)# exit
Switch# copy running-config startup-config
Switch# reload
The following example shows the output when you try to set Gigabit Ethernet interfaces to an out of
range value:
Switch(config)# system mtu jumbo 25000
% Invalid input detected at '^' marker.
Once the switch completes reload, the configuration can be verified by entering the following
commands:
Switch> enable
Switch# configure t
Switch(config)# show system mtu
Switch(config)# exit
The commands shown next are used to enable an individual VLAN to use Jumbo Frames. Note that
VLAN1 cannot have Jumbo Frames enabled. VLAN 2 must be used if Jumbo Frames are required.
Switch# vlan database
Switch(vlan)# vlan 2 mtu 9000
Switch(vlan)# exit
To view or confirm MTU size on port 7 of the switch, use the following command.
Switch# show interface gigabitethernet1/0/7
Dell EqualLogic Configuration Guide v11.3
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