yep. For Wireshark/Tshark, display filters (including "frame.comment contains ...") can be used as usual. Of course, if your pcap file contains only frames with

yep. For Wireshark/Tshark, display filters (including "frame.comment contains ...") can be used as usual. Of course, if your pcap file contains only frames with the same comment, that expression is not particularly useful, but you can merge multiple files with e.g. mergecap. The pcap subcommand, though, will be extended to allow extracting packets from multiple probes in a single run.