forealmy eNSP Topology Skill
Generate eNSP (Enterprise Network Simulation Platform) topology files as native .topo files that can be opened directly in eNSP.
How to create a topology
Parse user's request to identify:
- Network devices (routers, switches, PCs, Cloud, etc.)
- Connections between devices
- Optional: text labels, area boxes
Generate UUIDs for each device using a valid UUID v4 format
Calculate layout coordinates for devices using auto-layout algorithm
Build the .topo XML following the format in
references/topo-reference.mdWrite the file to current directory using Write tool
Open the result - print the file path so user can open it in eNSP
Output format
Always output a .topo file. The user will open it in eNSP for simulation.
Example filenames:
simple-network.topoospf-topology.topocampus-network.topo
Device types supported
Routers
| Model | Description | Interface Config |
|---|---|---|
| AR201 | Router | Ethernet x8 + Ethernet x1 |
| AR1220 | Router | 2GE + 8Ethernet |
| AR2220 | Router | GE x1 + GE x2 + Serial x2 |
| AR2240 | Router | GE x1 + GE x2 |
| AR3260 | Router | GE x1 + GE x2 |
| Router | Generic Router | Ethernet x2 + GE x4 + Serial x4 |
| NE40E | Enterprise Router | 10x Ethernet (slot format) |
| NE5000E | Core Router | 10x Ethernet (slot format) |
| NE9000 | Core Router | 10x Ethernet (slot format) |
| R250D | Router | GE x1 |
Switches
| Model | Description | Interface Config |
|---|---|---|
| S3700 | Switch | Ethernet x22 + GE x2 |
| S5700 | Switch | 24GE |
| CE6800 | Data Center Switch | 20x GE (slot format) |
| CE12800 | Data Center Switch | 10x GE (slot format) |
| CX | Switch | 10x Ethernet (slot format) |
Firewalls
| Model | Description | Interface Config |
|---|---|---|
| USG5500 | Firewall | GE x9 |
| USG6000V | Firewall | GE x1 (slot0) + GE x7 (slot1) |
Wireless
| Model | Description | Interface Config |
|---|---|---|
| AC6005 | Wireless AC | 8GE |
| AC6605 | Wireless AC | 24GE |
| AP2050 | Wireless AP | 5GE |
| AP3030 | Wireless AP | 1GE |
| AP4030 | Wireless AP | 2GE |
| AP4050 | Wireless AP | 2GE |
| AP5030 | Wireless AP | 2GE |
| AP6050 | Wireless AP | 2GE |
| AP7030 | Wireless AP | 2GE |
| AP7050 | Wireless AP | 2GE |
| AP8030 | Wireless AP | 3GE |
| AP8130 | Wireless AP | 3GE |
| AP9131 | Wireless AP | 2GE |
| AD9430 | LTE Module | 28GE |
| STA | Wireless Station | Wireless |
| Cellphone | Mobile Device | Wireless |
Endpoints
| Model | Description | Interface Config |
|---|---|---|
| PC | PC | 1GE |
| Laptop | Laptop | 1GE |
| Server | Server | 1Ethernet |
| Client | Client | 1Ethernet |
| MCS | Multicast Server | 1Ethernet |
| Cloud | Cloud/BNI | Ethernet interfaces |
| FRSW | Frame Relay Switch | Serial x16 |
| HUB | Ethernet HUB | Ethernet x16 |
Connection types
| Type | Description |
|---|---|
| Copper | Ethernet cable |
| Serial | Serial cable |
| Auto | Auto-detect |
Layout algorithm
Use a simple grid-based auto-layout:
Grid spacing: 200px horizontal, 150px vertical
Device size: ~80x60px
Start position: (100, 100)
For each row:
- Place devices horizontally with 200px gap
- Move to next row when reaching canvas width (~1200px)
Adjust positions based on device types and connections to create logical groupings.
Adding text labels (txttips)
Common labels for network diagrams:
- Loopback addresses:
Loopback0:10.0.1.1/24 - Network segments:
10.0.12.0/24 - Area labels:
Area0,Area1,AS 64512 - Device roles:
Core Layer,Access Layer
Adding area boxes (shapes)
Use type="1" shapes with appropriate colors to group devices:
- Same area devices in one rectangle
- Different colors for different areas/zones
File naming
- Use lowercase with hyphens
- Descriptive name based on topology purpose
- End with
.topoextension
Opening the result
After writing the file, print the absolute path:
Topology saved to: C:\path\to\topology.topo
Please open this file in eNSP to view and simulate.
XML format reference
Consult references/topo-reference.md for complete XML structure including:
- Device XML format with slots and interfaces
- Line XML format with interfacePair details
- Shape XML format for area boxes
- Txttip XML format for text annotations