Here is how to get this virtual machine (VM) up and running in your lab. What is TiMOS-SR-13.0.R4? file is a virtual disk image of the Nokia 7750 Service Router operating system, known as
Running Timos-sr-13.0.r4-vm.qcow2 provides access to the robust command-line interface (CLI) and routing stack of production-grade edge routers. Network teams rely on this version for several critical purposes:
Timos-sr-13.0.r4-vm.qcow2 is a virtual machine image file, specifically designed for the QEMU (Quick Emulator) hypervisor. The filename can be broken down into several components:
# Example: Launch an SR node, push config, test BGP convergence sudo qemu-system-x86_64 -drive file=timos-sr-13.0.r4-vm.qcow2,if=virtio \ -nographic -serial telnet:localhost:5001,server,nowait Timos-sr-13.0.r4-vm.qcow2
: Support for RSVP-TE, LDP, and Segment Routing.
The ".qcow2" extension is a giveaway; it signifies that this file is a QEMU Copy On Write image, a virtual disk image format used by QEMU (Quick Emulator), a powerful open-source emulator and virtualizer. The "Timos-sr-13.0.r4-vm" part suggests a naming convention that could imply a relation to network devices or software, possibly from a vendor or project named or abbreviated as "Timos," with "sr-13.0.r4" indicating a specific software release or version.
Virtual 7750 SR Available in 12.0.R4 - Page 15 - Alcatel Unleashed Here is how to get this virtual machine
This version represents a stable branch of the Nokia software suite, offering:
: Developers use the virtual platform to test Netconf, gRPC, and Python-based network automation workflows. System Requirements and Hypervisor Support
When booting the VM for the first time, you might see a persistent error message about a USB device mismatch. This is a harmless cosmetic issue that arises because the VM’s BIOS tries to map a USB bus that isn’t present in the emulated environment. You can safely ignore this error as it does not impact the router's functionality. Network teams rely on this version for several
While the .qcow2 file can be booted, most advanced features require a valid Nokia license key (license.txt). Without it, the chassis may boot but will not forward traffic or will have restricted boot timers.
This indicates the software release version. Version 13.0 marked a significant era for Nokia SROS, introducing enhanced features for carrier-grade Ethernet and refined IP/MPLS capabilities.
