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Graceful Restart System Requirements

Graceful restart is supported on all routing platforms. To implement graceful restart for particular features, your system must meet these minimum requirements:

  • Junos OS Release 5.3 or later for aggregate route, BGP, IS-IS, OSPF, RIP, RIPng, or static route graceful restart.

  • Junos OS Release 5.5 or later for RSVP on egress provider edge (PE) routers.

  • Junos OS Release 5.5 or later for LDP graceful restart.

  • Junos OS Release 5.6 or later for the CCC, TCC, Layer 2 VPN, or Layer 3 VPN implementations of graceful restart.

  • Junos OS Release 6.1 or later for RSVP graceful restart on ingress PE routers.

  • Junos OS Release 6.4 or later for PIM sparse mode graceful restart.

  • Junos OS Release 7.4 or later for ES-IS graceful restart.

  • Junos OS Release 8.5 or later for BFD session (helper mode only)—If a node is undergoing a graceful restart and its BFD sessions are distributed to the Packet Forwarding Engine, the peer node can help the peer with the graceful restart.

  • Junos OS Release 9.2 or later for BGP to support helper mode without requiring that graceful restart be configured.

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