The file 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.
To set up the TiMOS-SR-13.0.R4-vm.qcow2 image in GNS3, follow these steps: 1. Prerequisites
Then define and start:
| Component | Minimum Requirement | Recommended (Lab) | Recommended (Production) | | :--- | :--- | :--- | :--- | | | 2 | 4 | 8+ | | RAM | 8 GB | 16 GB | 32-64 GB | | Disk (qcow2) | 20 GB (thin provisioned) | 40 GB | 100 GB+ (thick) | | NICs | 4 virtual interfaces | 8 virtual interfaces | 16+ (SR-IOV) | | Hypervisor | KVM/QEMU 4.0+ | KVM + libvirt | VMware ESXi (converted) | Timos-sr-13.0.r4-vm.qcow2
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Select the timos-13.0.r4 image, assign the resources (2 vCPUs, 2048MB RAM), and click . Connect the node to your topology and click Start . Initial Boot Configuration and License Notes
The Timos-sr-13.0.r4-vm.qcow2 file is a virtual disk image containing Nokia’s TiMOS (Time Real-time Operating System). This specific version runs the 7750 Service Router (SR) platform, simulated for virtual environments. : Nokia's proprietary routing operating system. 13.0.r4 : The specific software release version. vm : Indicates a Virtual Machine optimized build. qcow2 : QEMU Copy-On-Write 2 format for KVM hypervisors. Key Technical Specifications The file is a virtual machine disk image
If you are running multiple 7750 routers (e.g., 6 instances), you may encounter performance issues. It is recommended to boot them one by one rather than all at once to avoid system instability in the GNS3 VM.
: Allocate a minimum of 2 GB to 4 GB of RAM per virtual router instance.
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: To set up the TiMOS-SR-13
The file represents a critical asset for network engineers, specifically those working within the Nokia (formerly Alcatel-Lucent) ecosystem. This virtual disk image contains the Service Router Operating System (SROS), designed to run in a virtualized environment.
: Service Router, indicating the software mimics the 7750 SR or 7950 XRS hardware platforms.