Configuring T1 and T3 Interfaces

T1 is the basic physical layer protocol used by the Digital Signal level 1 (DS-1) multiplexing method in North America. A T1 interface operates at a bit rate of 1.544 Mbps and can support 24 DS-0 channels. T3 is the physical layer protocol used by the Digital Signal level 3 (DS-3) multiplexing method in North America. A T3 interface operates at a bit rate of 44.736 Mbps. The JUNOS software supports payload scrambling and subrate operation on each physical T3 interface. DS-1 and DS-3 standards supported include ANSI TI.107, TI.102; GR 499-core, GR 253-core; Bellcore TR-TSY-000009 (DS-3 only); AT&T Pub 54014; and, ITU G.751, G.703, G823 (DS-3 only).

To configure T1-specific physical interface properties, include ...

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