Instead, select a byte value, such as 128, to see more of each frame. If you select 'Header Only' when you export non-IP traffic, you receive only the Layer 2 MAC headers. The 'Header Only' option for the 'Maximum Bytes per Packet' parameter applies to IPv4 (TCP and UDP) headers, including extension headers.Capture files are not retained as long as the metric data in the metrics database. The ability to export to PCAP is not available when the raw capture files containing the data of interest are deleted.Use the Time Period selector or the chart time control to zoom in on the time frame of interest. A narrower time frame reduces the number of raw capture files that are searched for relevant packets. Narrow the time frame of the analysis to improve the performance of the Export to PCAP feature.The amount of time necessary to open the File Download dialog depends on the amount of data being exported. PCAP file exports can take a while to complete.By default, only the IT Engineer and IT Manager roles allow access to this feature. The administrator and a user with rights for the CA Application Delivery Analysis Investigations role can use the Export to PCAP feature. Applications that use these application programming interfaces easily read and display PCAP. PCAP is compatible with WinPcap (Windows) and libpcap (UNIX). The PCAP format is widely used for network trace files and other methods of examining and exchanging packet-level data. The packet-capture file is built from raw capture files and displays packets for all sessions included in the current analysis. You can export the packet-capture data for the current view to a packet-capture file, in PCAP format. Exporting Data › Export Data to a PCAP File

How to analyse wireshark pcap file