Juniper JUNOSE SOFTWARE 11.0.X - LINK LAYER CONFIGURATION GUIDE 4-1-2010 Configuration Manual page 349

load-interval
loopback
mru
mtu
Use the no version to remove the POS interface.
See interface pos.
Use to set the time interval at which the router calculates bit and packet rate
counters.
You can choose a multiple of 30 seconds, in the range 30–300 seconds.
Example
host1(config-if)#load-interval 90
Use the no version to restore the default value, 300.
See load-interval.
Use to specify the type of loopback for a POS interface.
internal Connects the local transmitted signal to the local received signal.
line Connects the received network signal directly to the transmit network
signal. When configured in line loopback mode, the router never receives
data from the network.
Example
host1(config-if)#loopback line
Use the no version to clear the loopback.
See loopback.
Use to set the maximum allowable size of the MRU.
Specify a value in the range 1–9996 bytes.
Example
host1(config-if)#mru 1000
Use the no version to restore the default value, 4470.
See mru.
Use to set the maximum allowable size of the MTU.
Specify a value in the range 1–9996 bytes.
Example
host1(config-if)#mtu 1000
Chapter 9: Configuring Packet over SONET
Configuration Tasks
319