Juniper JUNOSE 11.0.X PHYSICAL LAYER Configuration Manual page 44

JUNOSe 11.0.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.