Juniper JUNOSE 11.1.X - LINK LAYER CONFIGURATION 4-7-2010, Руководство по настройке

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Use the no version to remove the POS interface.
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See interface pos.
load-interval
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Use to set the time interval at which the router calculates bit and packet rate
counters.
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You can choose a multiple of 30 seconds, in the range 30–300 seconds.
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Example
host1(config-if)# load-interval 90
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Use the no version to restore the default value, 300.
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See load-interval.
loopback
Use to specify the type of loopback for a POS interface.
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internal —Connects the local transmitted signal to the local received signal.
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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.
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Example
host1(config-if)# loopback line
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Use the no version to clear the loopback.
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See loopback.
mru
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Use to set the maximum allowable size of the MRU.
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Specify a value in the range 1–9996 bytes.
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Example
host1(config-if)# mru 1000
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Use the no version to restore the default value, 4470.
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See mru.
mtu
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Use to set the maximum allowable size of the MTU.
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Specify a value in the range 1–9996 bytes.
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Example
host1(config-if)# mtu 1000
Configuration Tasks
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Chapter 11: Configuring Packet over SONET