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Option: Configuring PIM Sparse Mode Graceful Restart for a Layer 3 VPN

Graceful restart permits a routing platform to continue forwarding multicast traffic to neighbors while the routing protocol process restarts. To enable graceful restart for PIM sparse mode in a Layer 3 VPN, include the graceful-restart statement at both the [edit routing-options] and [edit routing-instances instance-name routing-options] hierarchy levels. To disable graceful restart in a Layer 3 VPN, include the disable statement at the [edit routing-instances instance-name protocols pim graceful-restart] hierarchy level.



[edit]
routing-options {


graceful-restart {
disable;
restart-duration seconds;
}


}
routing-instances {



instance-name {
.....


protocols {


pim {


graceful-restart {
disable;
restart-duration seconds;
}


}


}




routing-options {


graceful-restart {
disable;
restart-duration seconds;
}


}


}


}

For more information about PIM sparse mode graceful restart in a Layer 3 VPN, see the JUNOS High Availability Configuration Guide or the JUNOS Multicast Protocols Configuration Guide.

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