Mesh campus scenario

scenarios/mesh-campus/ in the repo is a small multi-vendor campus for testing topology discovery, built for rConfig Mesh (LLDP/CDP). It is three devices, one per vendor, whose neighbour and interface output agree end to end: every chassis ID a device reports matches a MAC in its neighbour’s show interfaces, so discovery can match identities by MAC.

It needs no generator run. The scenario ships its own manifest, configs and command files.

Devices

Device	OS	Driver	Port	Chassis / base MAC	Mgmt IP (advertised)
core-01	Arista EOS 4.31	cisco_ios	12700	5254.00aa.0101 (Management1)	10.20.0.1
dist-01	Junos 22.4	junos	12701	2c:6b:f5:aa:02:01 (fxp0)	10.20.0.2
access-01	IOS 15.2 (C2960X)	cisco_ios	12702	7c95.f3aa.0300 (Vlan1)	10.20.0.3

Commands answered from files:

Device	Commands
core-01	show lldp neighbors detail, show interfaces, show version
dist-01	show lldp neighbors, show interfaces
access-01	show cdp neighbors detail, show lldp neighbors detail, show interfaces

Topology

A side	B side	Protocol	Expected
core-01 Ethernet1	dist-01 ge-0/0/0	LLDP	bidirectional
core-01 Ethernet2	access-01 GigabitEthernet0/1	LLDP	bidirectional (exercises Et2 / Gi0/1 short names)
access-01 GigabitEthernet0/24	ap-lobby-01 (not managed)	LLDP	unknown device, unidirectional
access-01 GigabitEthernet0/2	router1 GigabitEthernet2 (a real lab router)	CDP	one-sided: the real router never sees the sim

Run it

The checked-in manifest targets a lab host. Set its ip column to the address your collector reaches the sim on, and make the config_file paths absolute for your checkout. Then:

./bin/rcfg-sim \
  --manifest scenarios/mesh-campus/manifest.csv \
  --listen-ip <SIM_IP> --port-start 12700 --port-count 3 \
  --commands-root scenarios/mesh-campus/commands \
  --password "" --enable-password ""

$ ssh -p 12701 admin@<SIM_IP>
admin@dist-01> show lldp neighbors
Local Interface    Parent Interface    Chassis Id          Port info          System Name
ge-0/0/0           -                   52:54:00:aa:01:01   Ethernet1          core-01

Playbook

The step-by-step walkthrough (starting the sim, adding the devices to rConfig, collecting, the expected links, pitfalls and troubleshooting) is the scenario’s PLAYBOOK.md in the repo.

Delete old sim devices before re-adding

If earlier copies of these devices are still in rConfig, two records share the same MACs and IPs and identity matching breaks. Delete the old records first.

Tested

The TestMeshCampus_CommandFiles integration test serves the scenario on loopback, runs every file-backed command on every device, and checks each response byte for byte, along with the prompts and the silent paging commands.