# Traffic steering into label-switched paths (LSPs)

DevFeed: [Traffic steering into label-switched paths (LSPs)](<https://devfeed.tech/articles/worth-reading-traffic-steering-into-lsps-11153.md>)

Original publisher: [Read original article](<https://blog.ipspace.net/2025/03/lsp-traffic-steering/>)

Published: 2025-03-10T07:12:00Z

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>), [MPLS-TE](<https://devfeed.tech/topics/mpls-te.md>), [Software-defined networking](<https://devfeed.tech/topics/sdn.md>), [Network](<https://devfeed.tech/topics/network.md>), [NETCONF](<https://devfeed.tech/topics/netconf.md>)

Tags: [mpls](<https://devfeed.tech/tags/mpls.md>), [mpls-te](<https://devfeed.tech/tags/mpls-te.md>), [netconf](<https://devfeed.tech/tags/netconf.md>), [network](<https://devfeed.tech/tags/network.md>), [sdn](<https://devfeed.tech/tags/sdn.md>), [traffic-engineering](<https://devfeed.tech/tags/traffic-engineering.md>), [worth-reading](<https://devfeed.tech/tags/worth-reading.md>)

## AI overview

The article discusses steering network traffic into label-switched paths (LSPs) built with SR-MPLS, MPLS-TE, or an SDN controller. It explains that installing LSPs is only part of the task; network devices must also be configured to use them.

## Source excerpt

You can use SR-MPLS, MPLS-TE, or an SDN controller to build virtual circuits (label-switched paths) across the network core. The controller can push the LSPs into network devices with PCEP, BGP-LU, or some sort of NETCONF/RESTCONF trickery. Unfortunately, you're only half done once you have installed the LSPs. You still have to persuade the network devices to use them. Welcome to the confusing world of traffic steering explored in the Loopback as a Service blog post by Dmytro Shypovalov. Read more ...