BGP-Free Core with SR-MPLS
SR-MPLS can replace traditional MPLS control planes like LDP or RSVP without disrupting a BGP-free transport core, as shown in a workshop scenario where the same core topology continued working after swapping in SR-MPLS and adding hosts plus BGP routing.
MAIN POINTS
- SR-MPLS is a drop-in replacement for LDP- or RSVP-based MPLS control planes.
- A BGP-free transport core can keep operating after replacing LDP with SR-MPLS.
- The workshop example reused the same core topology from earlier scenarios.
- Two hosts and BGP routing were added to demonstrate the simplest working network.
TAKEAWAYS
- SR-MPLS simplifies migration by preserving existing MPLS behavior.
- Existing service-provider core designs can adopt SR-MPLS with minimal disruption.
- The example highlights SR-MPLS as practical, not just theoretical.
- A small topology can clearly demonstrate how segment routing fits into real networks.