# BGP-Free Core with SR-MPLS

DevFeed: [BGP-Free Core with SR-MPLS](<https://devfeed.tech/articles/bgp-free-core-with-sr-mpls-11437.md>)

Original publisher: [Read original article](<https://blog.ipspace.net/2026/09/sr-mpls-bgp-free/>)

Published: 2026-09-03T05:30:00Z

Content type: article

Language: en

Sources: [ipSpace.net blog](<https://devfeed.tech/sources/ipspace-net-blog.md>)

Topics: [SR-MPLS](<https://devfeed.tech/topics/sr-mpls.md>), [BGP](<https://devfeed.tech/topics/bgp.md>), [networking](<https://devfeed.tech/topics/networking.md>), [Network](<https://devfeed.tech/topics/network.md>), [Routing (disambiguation)](<https://devfeed.tech/topics/routing.md>), [Containers](<https://devfeed.tech/topics/containers.md>), [Linux](<https://devfeed.tech/topics/linux.md>), [GitHub](<https://devfeed.tech/topics/github.md>)

Tags: [bgp](<https://devfeed.tech/tags/bgp.md>), [containers](<https://devfeed.tech/tags/containers.md>), [edge](<https://devfeed.tech/tags/edge.md>), [examples](<https://devfeed.tech/tags/examples.md>), [github](<https://devfeed.tech/tags/github.md>), [is-is](<https://devfeed.tech/tags/is-is.md>), [linux](<https://devfeed.tech/tags/linux.md>), [mpls](<https://devfeed.tech/tags/mpls.md>), [netlab](<https://devfeed.tech/tags/netlab.md>), [network](<https://devfeed.tech/tags/network.md>), [router](<https://devfeed.tech/tags/router.md>), [routing](<https://devfeed.tech/tags/routing.md>), [sr-mpls](<https://devfeed.tech/tags/sr-mpls.md>)

## AI overview

This article demonstrates how to build a BGP-free transport core with SR-MPLS using netlab. It describes a lab topology with IS-IS, BGP, Linux container hosts, and PE routers, then shows how SR-MPLS labels provide end-to-end connectivity without BGP routes on the core router.

## Source excerpt

The beauty of SR-MPLS is that it's a drop-in replacement for the traditional (LDP- or RSVP-based) MPLS control plane. For example, you could replace LDP with SR-MPLS in a network using MPLS to implement a BGP-free transport core, and it just keeps working. This scenario was the first "fun" scenario in the ITNOG10 Segment Routing workshop. The core network uses the same topology as in the previous examples; I added two hosts and BGP routing. Simplest possible network using a BGP-free core Read more ...