Juniper JUNOSE 10.0.X PHYSICAL LAYER, Руководство по настройке

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Coordinate this value with the network administrator on the other end of the
line.
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If you set this value with a different value for another protocol, such as IP, the
router uses the lower value. The lower MRU might cause unexpected results in
the network.
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Example
host1(config-if)# mru 1500
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Use the no version to restore the default, 1600 bytes.
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See mru.
mtu
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Use to configure the MTU size for the interface.
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Specify a value in the range 4–9996 bytes.
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You should coordinate this value with the network administrator on the other
end of the line.
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You can set a different MTU value in higher-level protocols, such as IP. If you do,
the router uses the lower value. The lower MTU might cause unexpected results
in the network.
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Example
host1(config-if)# mtu 1500
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Use the no version to restore the default, 1600 bytes.
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See mtu.
serial description
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Use to assign a text description or an alias to a serial HDLC interface.
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You can use this command to help you identify the interface and keep track of
interface connections.
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The description or alias can be a maximum of 80 characters.
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Use “show interfaces serial” on page 171 to display the text description.
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Example
host1(config-if)# serial description ottawa012 hdlc channel
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Use the no version to remove the text description or alias.
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See serial description.
Configuration Examples
This section provides some configuration examples to illustrate how to use the CLI
commands.
Configuration Examples
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Chapter 4: Configuring Channelized OCx/STMx Interfaces