Advantage/dis adv of Autonomous and WLAN controller solution
The main difference is:-
Autonomous :- each AP has to be managed seperately
Controller based:- many AP can be managed by single controller no need to go to each AP and configure it seperatly.. all configuration done at once.. but once the controller is down all the AP's will be down at once attached to it.. which is not the case of autonomous AP.
Re: Advantage/dis adv of Autonomous and WLAN controller solution
Developing a New Wireless LAN Centralization Protocol
To transport data and facilitate communication between lightweight access points and a wireless LAN controller, a new protocol was needed. This protocol needed to address the following requirements:
• Ease of deployment-Instead of trunking VLANs to the centralized controller(s), the protocol had to be able to cross subnet boundaries.
• Deployment security-Just because an access point is plugged into the network doesn't mean that it should have full access to the network. The protocol needed to provide a way of authenticating all access points connected to the network.
• Real-time control of the access point-Once the access point is deployed, authenticated, and connected to the controller, the protocol needed to provide real-time control of the access point for management and deployment of mobility services.
• Protocol extensibility-The protocol needed to work across a myriad of platforms, from chassis-based modules in large Ethernet switches, to stackables, to routers, and any other network elements.
• Transport extensibility-Although networks generally run over Ethernet, the protocol had to be capable of running across low-speed WAN links and even over the air (for applications like wireless mesh networking).
Transferring Crash file from standby: Login to the Active WLC in HA.
From CLI: (Cisco Controller) >transfer upload datatype crash (Cisco
Controller) >transfer upload filename (Cisco
Controller) >transfer upload mode tftp (Cisco Controller) >transfer
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