next-hop-based-tunnel (Routing Options)
Syntax
next-hop-based-tunnel;
Hierarchy Level
[edit logical-systems logical-system-name routing-options dynamic-tunnels gre next-hop-based-tunnel], [edit routing-options dynamic-tunnels gre next-hop-based-tunnel]
Description
Enable dynamic next hop based GRE tunnels.
Create a tunnel composite next hop for every dynamic GRE tunnel configured. The tunnel composite next hop includes the dynamic tunnel’s encapsulation data and a VPN label (when chained composite next hop is not enabled). When this option is not configured, the default interface-based tunnel mode is enabled. By configuring this option, a device can scale up to 32,000 IP tunnels, which is otherwise restricted to the system limit on the number of interfaces supported.
At a given point in time, either the next-hop-based dynamic tunnel or the default interface-based dynamic GRE tunnel can exist on a device. A switchover from one tunnel mode to another deletes the existing tunnels and creates new tunnels in the new tunnel mode. As a result, a tunnel mode switchover can impact network performance.
Required Privilege Level
routing—To view this statement in the configuration.
routing-control—To add this statement to the configuration.
Release Information
Statement introduced in Junos OS Release 16.2.