Timos-sr-13.0.r4-vm.qcow2 Extra Quality May 2026

The file Timos-sr-13.0.r4-vm.qcow2 is a virtual machine disk image for the Alcatel-Lucent 7750 Service Router (SR) operating system, known as TiMOS or SR-OS. It is commonly used in network simulation environments like GNS3 to virtualize carrier-grade routing hardware for labs and testing. Key Specifications & Requirements Software Version: SR-OS 13.0.R4.

• Snapshots are instant. In a CI/CD pipeline for network configs, you can spin up a timos-sr-13.0.r4-vm.qcow2 base image, take a snapshot, run your Ansible or Nornir test, and roll back in milliseconds.
• Backing Files. You can have 20 virtual SR routers consuming only 2GB of disk space, because each writes only its changes to a new overlay file.
• Native Linux KVM integration. No ESXi licensing overhead. Run it on a $500 server or an AWS bare metal instance.

• Segment Routing (MPLS and IPv6 data planes).
• VPRN (Virtual Private Routed Network) and VPLS services.
• Enhanced Link Aggregation.

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GNS3 Integration: To use this in GNS3, you can import the .gns3a appliance file which pre-configures settings like the e1000 adapter type and console access via telnet. Timos-sr-13.0.r4-vm.qcow2

Format: .qcow2 (QEMU Copy-On-Write), optimized for KVM-based hypervisors. The file Timos-sr-13

• Create a small test topology (2–3 VMs + host router/firewall) to validate control-plane features.
• Automate configuration and test cases via serial/SSH scripts or an automation framework (Ansible, expect scripts).
• Snapshot a known-good image state before making configuration changes for easy rollback.