Service Manual

ip mtu
Set the IP MTU (frame size) of the packet the RPM transmits for the line card interface. If the packet must be
fragmented, Dell Networking OS sets the size of the fragmented packets to the size specified in this
command.
Syntax
ip mtu value
To return to the default IP MTU value, use the no ip mtu command.
Parameters
value Enter the maximum MTU size if the IP packet is fragmented. The
range is from 576 to 9234. The default is 1500 bytes.
Defaults 1500 bytes
Command Modes INTERFACE (Gigabit Ethernet and 10-Gigabit Ethernet interfaces)
Command History
This guide is platform-specific. For command information about other platforms, see
the relevant Dell Networking OS Command Line Reference Guide.
Verison Description
9.8(0.0P5) Introduced on the S4048-ON.
9.8(0.0P2) Introduced on the S3048-ON.
9.2(1.0) Introduced on the Z9500.
8.3.19.0 Introduced on the S4820T.
8.3.7.0 Introduced on the S4810.
8.1.1.0 Introduced on the E-Series.
6.1.1.0 Introduced on the E-Series.
Usage Information When you enter the no mtu command, Dell Networking OS reduces the ip mtu value
to 1536 bytes. To return the IP MTU value to the default, use the no ip mtu
command.
Starting with Dell Networking OS Release 9.2(0.2), the ip mtu command is not
supported to configure the IP MTU value that is used when the IP packet is fragmented.
Instead of having to configure the IP MTU value, this value is automatically computed
by the software when you configure an interface. As a result, the ip mtu command is
not available for configuration. However, you can continue to specify the link MTU
value by using the mtu command.
IPv4 Routing 985