An overview of different Cisco Wireless LAN [WLAN] Deployment Models.
- Standalone Access Points are used for this deployment.
- Access Points must have management IP address configured and connected as trunk link.
Centralized or Unified Wireless Deployment
- Lightweight Access Points are used for this deployment.
- Wireless LAN Controller[s] are needed.
- Access Points still have unique management IP address and connected as as access link.
- Layer 3 boundary for each data VLAN is handled at/or near the WLC.
- CAPWAP tunnel between AP and WLC that is usually connected to Core Switch are used to carry multiple VLANs and WLANs.
- Round-trip time [RTT] between AP and a controller should be less than 100ms to maintain wireless communication in near real-time.
- Cisco unified WLC are meant for a large enterprise which can support up to 6000 APs.
Cloud Wireless Deployment
- WLC is deployed in private or public cloud environment.
- WLC is deployed as Virtual Machine [VM].
- vWLC supports up to 3000 APs.
Embedded Wireless Deployment
- WLC is embedded in Switch platform or hardware called embedded wireless.
- Cost-effective because the WLC and switch are in the same hardware.
- CAPWAP tunnel between AP and WLC connected to Access Switch are used to carry multiple VLANS and WLANs.
- Embedded WLC supports up to 200 APs.
Mobility Express WLC
- WLC is moved to Access Layer and into Access Point level.
- Access Points software run as a WLC.
- Can be useful in small scale environments like small or multi-site branch locations.
- Mobility Express WLC can support up to 100 APs.