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GNS3 utilizes the GNS3 Virtual Machine (running Ubuntu) to host IOL binaries.
Linux file permissions must be fixed (often using a wrapper script) to make the binary executable.
| Version | Feature Highlights | Stability | | :--- | :--- | :--- | | 15.1d | Basic STP, VLANs, VTP v2 | Stable for CCNA | | | VTPv3, Flex Links, improved MAC scaling | Gold standard for labs | | 15.3d | VXLAN, LISP control plane | Buggy in QEMU | | 15.5d | MPLS L2VPN, EVPN (limited) | Requires more RAM |
If the image starts but immediately stops, it’s almost always a missing or incorrect iourc file.
GNS3 utilizes the GNS3 Virtual Machine (running Ubuntu) to host IOL binaries.
Linux file permissions must be fixed (often using a wrapper script) to make the binary executable. i86bi-linux-l2-adventerprisek9-15.2d.bin
| Version | Feature Highlights | Stability | | :--- | :--- | :--- | | 15.1d | Basic STP, VLANs, VTP v2 | Stable for CCNA | | | VTPv3, Flex Links, improved MAC scaling | Gold standard for labs | | 15.3d | VXLAN, LISP control plane | Buggy in QEMU | | 15.5d | MPLS L2VPN, EVPN (limited) | Requires more RAM | GNS3 utilizes the GNS3 Virtual Machine (running Ubuntu)
If the image starts but immediately stops, it’s almost always a missing or incorrect iourc file. i86bi-linux-l2-adventerprisek9-15.2d.bin
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