Specifications

ip mtu
261
ip mtu
Sets the send IP MTU length for an interface.
Syntax
To set or change information:
ip mtu <Length>
To delete information:
no ip mtu
Input mode
(config-if)
Parameters
<Length>
Sets the send IP MTU length for an interface. In actuality, the frame length set in port
MTU information and this parameter value are compared, and the smaller value is
used as the IP MTU length of the interface.
For the frame length set in the port MTU information, see mtu .
To check the IP MTU length that is being used, use the
show ip interface operation
command.
1. Default value when this parameter is omitted:
This parameter cannot be omitted.
2. Range of values:
128 to 9216 (bytes)
Default behavior
The frame length (bytes) set in the port MTU information is used as the IP MTU length.
Impact on communication
None
When the change is applied
The change is applied immediately after setting values are changed.
Notes
1. The IP MTU length for Ethernet is set by comparing the frame length set in the port
MTU information with the IP MTU value. Therefore, to set a value larger than 1500
for the IP MTU length, check the
ip mtu settings as well as the mtu settings in the
port MTU information.
Related commands
interface vlan
mtu