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Junos OS Interfaces Command Reference - Juniper Networks

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<strong>Junos</strong> <strong>OS</strong> 12.1 <strong>Interfaces</strong> <strong>Command</strong> <strong>Reference</strong><br />

632<br />

NOTE: ISDN is supported on the J Series Services Routers only. J Series routers<br />

can be configured to "fail over" to an ISDN interface when the primary<br />

connection experiences interruptions in Internet connectivity. The following<br />

interfaces support ISDN backup connectivity: E1, E3, Fast Ethernet, generic<br />

routing encapsulation (GRE), Point-to-Point Protocol over Ethernet (PPPoE),<br />

serial, T1, and T3. For information about how to configure ISDN interfaces,<br />

see the J Series Services Router Basic LAN and WAN Access Configuration<br />

Guide or the <strong>Junos</strong> Network <strong>Interfaces</strong> Configuration Guide.<br />

Copyright © 2012, <strong>Juniper</strong> <strong>Networks</strong>, Inc.

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