MPLS

Multiprotocol Label Switching, the forwarding paradigm that powers most service provider backbones and large enterprise WANs. Articles tagged MPLS cover labels and the label stack, LDP, L3VPN with MP-BGP and VPNv4, traffic engineering, and segment routing.

8 posts

SD-WAN

SD-WAN vs MPLS: When Each Wins in 2026

SD-WAN and MPLS are not pure substitutes. The technical differences, cost story without the marketing spin, when MPLS still wins, and the hybrid pattern most enterprises end up with.

Apr 25, 2026 6 min read

BGP

MP-BGP: Multiprotocol BGP Address Families Explained

MP-BGP (RFC 4760) is what lets a single BGP session carry IPv6, VPNv4, EVPN, and more. The AFI/SAFI model, route distinguishers, and how modern data center fabrics use MP-BGP for everything.

Apr 25, 2026 6 min read