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.md
Write 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.topo
ospf-topology.topo
campus-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 .topo extension

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

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