TL&DR: netlab release 25.06 was published last week.

Before discussing the new features, let’s walk the elephant out of the room: I changed the release versions to YY.MM scheme, so I will never again have to waste my time on the existential question of which number in the release specification to increase.

Now for the new features:

• Blackhole/discard static routes (routes point to null interface)
• Redistribution of static routes into OSPF, IS-IS, RIPv2, RIPng, and BGP
• Link aggregation on Junos.

I hope you’ll find these features useful, but also that at least someone will benefit from the time I spent fixing the ancient ruins of Nokia SR-OS configuration templates. This is how the integration test report for Nokia SR-OS looked on May 25th:

And this is the result of testing the configuration templates from release 25.06 after fixing “a few” bugs¹:

While fixing old stuff, I also added a few features to the SR-OS configuration templates:

• Static ingress replication for VXLAN
• EVPN transit VNI within VPRN service (previous implementation created a separate VPLS service for the transit VNI)
• Propagation of MPLS/VPN and EVPN routes to CE-routers
• VRF-aware EBGP multihop, IS-IS, OSPFv3
• Inter-VRF route leaking in MPLS/VPN deployments (next step: I have to figure out how to do that on a standalone device)
• Route import into BGP, OSPFv2, OSPFv3, and IS-IS

I must admit that I kind of liked working with SR-OS. Apart from a few conceptual quirks², it’s pretty fast³, quite neat, and easy to work with (once you figure out configuration changes won’t be applied until you do a commit). If only there were an easy way to get the VM image…

Upgrading or Starting from Scratch?

• To upgrade your netlab installation, execute pip3 install --upgrade networklab.
• New to netlab? Start with the Getting Started document and the installation guide.
• Need help? Open a discussion or an issue in netlab GitHub repository.