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buildout (T1 Interfaces)



Hierarchy Level

Release Information

Statement introduced before Junos OS Release 7.4.

Statement introduced in Junos OS Release 12.2 for the ACX Series Universal Metro Routers.


For T1 interfaces, set the buildout value.


When configuring CT1 interfaces on 10-port Channelized E1/T1 IQE PICs and 16-Port Channelized E1/T1 Circuit Emulation MICs, the buildout statement must be included at the hierarchy level.


The default buildout value is 0 through 132 feet.


You can set the buildout value to one of the following:

  • 0-132—0 through 132 feet (0 through 40 meters)

  • 133-265—133 through 265 feet (40 through 81 meters)

  • 266-398—266 through 398 feet (81 through 121 meters)

  • 399-531—399 through 531 feet (121 through 162 meters)

  • 532-655—532 through 655 feet (162 through 200 meters)

  • long-7.5db—For MX Series only, long buildout with 7.5 dB transmit attenuation

  • long-15db—For MX Series only, long buildout with 15 dB transmit attenuation

  • long-22.5db—For MX Series only, long buildout with 22.5 dB transmit attenuation

Required Privilege Level

interface—To view this statement in the configuration.

interface-control—To add this statement to the configuration.

Related Documentation