Traffic Monitoring - Avaya WLAN 8100 Series Troubleshooting Manual

a filter in string format or from a file. The filter specification is similar to the tcpdump filter
specification described on the tcpdump main page. The remote packet capture utility can only
capture packets from one interface at a time. The WCS provides a command to display all
interfaces on an AP.
You can retrieve the capture file after the capture is stopped. The file is retrieved over the
secured TCP channel between the AP and the WCS. use the CLI on the WCS that manages
the AP or the WMS to retrieve the packet capture file. When you use the WMS to retrieve the
captured file, the file is is saved on the WMS host. When you use the CLI to retrieve the file,
the capture file is saved in a non-persistent memory or you can save it to a USB stick. You can
use third-party tools, such as Wireshark, for offline protocol analysis.
In real-time analysis mode, the AP implements a packet capture service. You can only enable
the service using a command from the WCS (CLI or WMS). The server communicates with a
client application. The server then receives commands from the client application to start or
stop the capture on a specific AP interface, and to apply user-defined packet capture filters.
The server communicates with the client application using RPCAP. The connection to the client
is a TCP connection, used to ensure delivery of the captured packets to the client.

Traffic monitoring

Traffic monitoring is the collection and analysis of traffic flow and application related
measurements. This involves collecting, storing, and analyzing flow and application
measurements exported from the flow meters in the IP network, and provides access to the
analyzed measurement. The collection process is hosted by the flow collector-analyzer
devices under the IPFIX architecture.
Avaya WLAN 8100 Troubleshooting Guide
Traffic monitoring
August 2011 11