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Source Packet Routing in Networking (SPRING) or Segment Routing

  • Dynamic tunnel support for SRv6 tunnels (ACX7332)—Starting in Junos OS Evolved Release 23.4R1-S1, you can configure segment routing for IPv6 (SRv6) Layer 3 VPN dynamic tunnel over a traditional Layer 3 VPN network.

    The following functionalities are supported:

    • DT4, DT6, DT46, uDT4, uDT6, uDT46 SIDs.

    • Signal SRv6 locator based dynamic tunnel from BGP.

    • Resolve BGP route over dynamic tunnel route.

    • Resolve BGP route over dynamic tunnel and create transport tunnel composite next hop (TCNH) with BGP/IGP/Static as underlay. Have single or multiple router next hops.

    • Forwarding policies under dynamic tunnels.

    • DSCP propagation for dynamic tunnel at ingress.

    • Display dynamic tunnel (dyn-tunnel) flag information for SRv6 tunnel as part of show route extensive command.