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Supported Miscellaneous Routing Features

The JUNOS software supports unicast reverse-path forwarding.

JUNOS routing protocols and PIM sparse mode support graceful restart, which enables a protocol, before it restarts, to inform its adjacent neighbors and peers of its condition.

The JUNOS software supports graceful Routing Engine switchover for routing platforms in which Adaptive Services (AS) Physical Interface Cards (PICs) are installed. When a Routing Engine switchover occurs, features using adaptive services are interrupted momentarily. Features that do not use adaptive services continue uninterrupted. After switchover, all features are restored and packet forwarding continues. Note, however, that L2TP does not come up after a graceful switchover.

The JUNOS software supports routing instances, which enables you to create multiple instances of BGP, IS-IS, OSPF, PIM, RIP, and static routes.

The JUNOS software supports logical systems, which enables you to create multiple logical routing devices within a single routing platform.

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