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JUNOSe 11.1.x Physical Layer Configuration Guide
mru
mtu
serial description
22
Configuration Tasks
Use to configure the MRU size for the interface.
Specify a value in the range 4–9996 bytes.
You should coordinate this value with the network administrator on the other
end of the line.
If you configure a different MRU value in higher-level protocols, such as IP, the
router uses the lower value. This can produce unexpected behavior in your
network.
Example
host1(config-if)#mru 1600
Use the no version to restore the default, 1600 bytes.
See mru.
Use to configure the MTU size for the interface.
Specify a value in the range 4–9996 bytes.
You should coordinate this value with the network administrator on the other
end of the line.
If you configure a different MTU value in higher-level protocols, such as IP, the
router uses the lower value. This can produce unexpected behavior in your
network.
Example
host1(config-if)#mtu 1600
Use the no version to restore the default, 1600 bytes.
See mtu.
Use to assign a text description or an alias to a serial HDLC interface.
You can use this command to help you identify the interface and keep track of
interface connections.
The description or alias can be a maximum of 80 characters.
Use "show interfaces serial" on page 42 to display the text description.
Example
host1(config-if)#serial description ottawa012 hdlc channel
Use the no version to remove the text description or alias.
See serial description.
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