BGP classful transport support for dynamic tunnels and colored transport-rib for next-hop-based tunnels

We support BGP classful transport support for dynamic tunnels and colored transport-rib for next-hop-based tunnels. 

• To support the colored transport-rib model for DTM next-hop based tunnels, configure the use-transport-class statement under [edit dynamic-tunnels tunnel-name]. 
• To enable the use-transport-class statement under a dynamic tunnel, include the auto-create statement at the [edit routing-options transport-class] hierarchy level.
• To configure the colored transport-rib, include the preserve-nexthop-hierarchy statement at the [edit routing-options resolution] hierarchy level. 

Notes: 

• By default, GRE tunnels are logical interface-based tunnels, whereas IPIP and UDP tunnels are next-hop based tunnels. To configure GRE tunnels as next-hop-based tunnels, include the GRE next-hop-based-tunnel statement at [edit routing-options dynamic-tunnels].
• For logical interface and next-hop-based tunnels, the system triggers the addition of a dynamic, tunnel-specific route when an application route with a next-hop protocol resolves on dynamic tunnel catch-all route.
• When you configure the use-transport-class statement, the system creates the catch-all route application route in the color.inet(6).3 table. 
• If you do not configure the use-transport-class statement, the system creates the catch-all route and application route in the inet(6)color.0 table. 
• The system also creates dynamic tunnels in the inet(6)color.0 table when you include the best-effort statement under [edit routing-options dynamic-tunnels dynamic-tunnel-name destination-networks ip-address].