This occurs with multiple components being programmed sequentially over the programming path indicated in the image.Ĭisco IOS® XE provides a versatile tool set to trace the packet from the moment it enters 9800 WLC until the processed traffic leaves the box. As we process AP joins, client join, mobility exchanges, data plane needs to be programmed so it can handle data traffic forwarding. In case of client join, this would be all the traffic sourced from client until the client goes to RUN state would follow PUNT path.Īs the various daemons process the incoming traffic, the resulting return traffic (capwap response, dot11, dot1x, dcp response) sourced from 9800 WLC to be sent to the client is injected back into the data plane to be sent out the physical port. For an AP join, this would be all the capwap and dtls exchange sourced from AP. When a packet enters the 9800 WLC from physical ports, if it is determined to be control traffic, it is punted to the corresponding Control Plane Processes.
#Mac red alarm series
9800-SW simply leverages the Doppler chipset on Catalyst 9k series switches for data forwarding.
#Mac red alarm software
However, Data Plane varies with 9800-80 using hardware Quantum Flow processor (QFP) complex similar to ASR1k while 9800-CL and 9800-L uses software implementation of Cisco Packet Processor (CPP). Rogue Management, Network Mobility Service protocol (NMSP) that are destined to and from the 9800 WLC.ĭata Plane (DP) refers to the components that forward data on 9800 WLC.
All the process daemons can be bundled under the generic term Control Plane (CP) and are responsible for Control and Provisioning of Access Points (CAPWAP), Mobility, Radio Resource Management (RRM). Background InformationĬisco IOS® XE running on 9800 WLCs is essentially made up of a Linux Kernel (binOS) with Cisco IOS® and all the wireless processes implemented as daemons. It is mainly based on 17.3 Cisco IOS® XE version. Basic knowledge of the use case flows involved in using a WLC.Basic knowledge of Wireless LAN Controllers (WLC).It is generic and applies to many usage scenarios. This document describes and provides an overview of all the Cisco IOS® XE features and capabilities leveraged for troubleshooting wireless workflows on Cisco Catalyst 9800 Series Wireless LAN Controllers.
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