Nokia SR OS routers in EVE-NG

SR OS is the operating system of Nokia's 7750 Service Router family. The virtual router runs it as one integrated node, or as separate CPM (control) and IOM (line card) nodes that form a distributed chassis.

Integrated is one node per router and the simplest place to start. Distributed splits a router into a CPM and an IOM joined by a fabric network, closer to a chassis, and uses two nodes per router.

All six SR OS templates open a telnet console, so each node's CLI opens in your browser, or in your own terminal: right-click the running node and choose Terminal (console).

EVE attaches a node's start-up config only on its first boot. After a stop and start the router boots from cf3:\config.cfg, so it comes up empty unless your work was saved there. On timos-ng-21.10.R1, end the start-up config with bof primary-config cf3:\config.cfg, bof save and admin save, then run admin save after any change you want to keep. Wipe returns the node to the lab's start.

Working choices are timos-13.0.R1, timos-ng-21.10.R1, and timos-ng-22.10.R2 or its -Lab variant. For a distributed router, use timoscpm-ng-22.10.R2 or its -Lab variant with timosiom-ng-22.10.R2. These choices have passed bidirectional data-ping checks. Fresh factory tests also passed for the original 21/22 integrated images and original 22 CPM/IOM pair. The 22.10 choices still report 'license update required' with the retained 21.x evaluation; they do not have a matching 22.x licence or a guarantee of indefinite operation.

From the node tips, updated 9 October 2026.

Compatibility fixes apply automatically at startup. Empty factory configurations for integrated 21.10 and original or Lab 22.10 integrated/CPM images receive their card, MDA and port setup; nonempty saved configurations are preserved. Nokia 13 already includes its factory hardware configuration and uses slower software emulation. The tested 21/22 integrated setup used 4 vCPUs and 6144 MB RAM; distributed 22 used 2 vCPUs and 4096 MB per CPM/IOM. Clean-image console login is admin / admin; configured labs can have different passwords.

From the node tips, updated 9 October 2026.

The retained evaluations use historical dates: June 2015 for 13.0 and June 2021 for 21.10 and the prepared original or Lab 22.10 images. The platform applies this at startup. NTP or today's date inside the guest can invalidate these old evaluations; the setup does not renew a licence.

From the node tips, updated 9 October 2026.

12.0 and 24.7 lack matching retained licences and show a one-hour reboot warning. 15.0 still encounters a QEMU boot error, and no working configuration has been found for it. Choose one of the working options in the traffic-check tip unless you have the required replacement image or suitable vendor entitlement.

From the node tips, updated 9 October 2026.

For integrated 21/22, eth0 is management; eth1, eth2 and eth3 map to guest ports 1/1/c1/1, 1/1/c2/1 and 1/1/c3/1. For distributed 22, connect the CPM and IOM second adapters to one dedicated fabric network; its 9500-byte MTU is handled automatically. Their first adapters are management, and IOM data begins at the third adapter, guest port 1/1/1. Wire the topology and configure your own IP addresses and routing.

From the node tips, updated 9 October 2026.

13 images (4 Integrated router (VSR NG template), 2 Integrated router (VSR template), 3 Distributed: CPM (NG template), 1 Distributed: CPM, 2 Distributed: IOM (NG template), 1 Distributed: IOM), all listed on this page exactly as Add Node shows them. The newest is timos-ng-24.7.R1.

When you add one, the timos-ng template adds 4 vCPU and 6144 MB of RAM; the timos template adds 1 vCPU and 2048 MB of RAM; the timoscpm-ng template adds 2 vCPU and 4096 MB of RAM; the timoscpm template adds 1 vCPU and 2048 MB of RAM; the timosiom-ng template adds 2 vCPU and 4096 MB of RAM; the timosiom template adds 1 vCPU and 2048 MB of RAM. You can change both in Add Node, and your plan counts what each running node is set to.