The simulated world - dubsector/meraki-api-emulator GitHub Wiki

Organization	Network	Products	Notes
Acme Corporation	HQ - San Francisco	MX, MS, MR, MV	VPN hub, dual WAN (fiber and cable), about 340 clients
	Branch - Austin	MX, MS, MR	One switch is in the alerting state
	Warehouse - Reno	MX, MS, MR, MV	Two shifts, one flaky AP, one dormant camera
	Retail - Denver	MX, MS, MR	Store hours, lots of guest Wi-Fi
	Remote - London	MX, MS, MR	Single WAN, Europe/London time zone
Acme Test Lab	Lab - Toronto	MR	Wireless only
	Lab - Ottawa	MX	One MX68W with Wi-Fi on a single cable uplink, no clients and no VPN
	Lab - Montreal	MR, MT	One CW9166I as the sensor gateway and Zigbee IoT controller (two door locks, ESL on) and nine sensors: two MT10, an MT11 freezer probe, MT12, MT14, MT15, MT20 door, MT30 button and MT40 power monitor
	Lab - Kingston	MG	Two cellular gateways: a 5G MG52 with a SIM and an eSIM, and a single-SIM LTE MG21, each SIM on its own Canadian carrier
	Lab - Systems Manager	SM	No Meraki hardware: 13 enrolled devices (iPhones, iPads, Macs, Windows laptops, Android phones and a Chromebook), their 7 owners and 6 profiles
	Lab - Calgary	MR, campus gateway	Three CW9166I APs whose two SSIDs tunnel through one cluster of two CW9800H1 campus gateways, about 15 clients, Mountain time
	Lab - Halifax	Wireless LAN controller	Two Catalyst 9800-40 controllers in an SSO pair with six Catalyst APs joined to it (records on the pair, not devices) and about 50 clients at peak, Atlantic time
	Lab - Winnipeg	MX	One Cisco Secure Router (C8455-G2-MX) on fiber and cable uplinks, with SFP+ optics in its first WAN port and one LAN port, no clients and no VPN, Central time

Everything is generated from a seed and the clock:

• Clients follow schedules in each site's local time: office hours, warehouse shifts, retail hours, guests who drop in, and always-on devices like phones, printers and IoT sensors. Weekends are quiet.
• Traffic is built from those sessions on a 5-minute grid, so totals agree across endpoints and resolutions. HQ runs about 60 Mbps at midday, drops to almost nothing overnight, and has a nightly NAS backup.
• Devices have occasional outages. The Reno dock AP drops several times a day, and WAN links fail over now and then.
• Events come from the same sessions and outages: associations, 802.1X and splash auth, DHCP leases, port up and down, VPN peer changes, failovers, content filtering and IDS alerts.
• Alerts are raised from those outages too. A device gone for five minutes becomes an unreachable assurance alert that resolves when it comes back, the Austin switch has an open CRC errors alert, and WAN failures show up as wan_status. Dismissing an alert takes it out of the active views until it is restored.
• Configuration is built from the same topology. VLAN subnets hold every client address, the MX is .1 on each one, firewall rules reference the real VLANs, and the VPN settings export the subnets the VPN status endpoint reports.
• Sensors report on their own schedule: temperature, humidity, air quality and power every 15 minutes, battery, water and the MT40's outlet every hour, and doors and buttons as they happen. Indoor readings follow office hours, the freezer stays near -18 °C, water stays dry, and batteries run down slowly. A sensor that is down reports nothing.
• Systems Manager devices check in through the day in Toronto time: laptops on most weekdays during office hours, phones and tablets from morning to late evening, and the front desk iPad through opening hours. Laptops send performance samples every hour and connection logs every four hours while online, and phones report daily cellular use.
• Administration: each organization has admins with different access levels, a change log written by the admins allowed to make each change, and an inventory with a few unassigned spares. Acme Corporation uses co-term licensing and Acme Test Lab uses per-device licensing, with one license per device, one of them expiring soon, and one unused.

The same seed and the same time always give the same answer. Freeze the clock with --now for repeatable tests.