Dell S6100 Configuration Manual page 1060

You can use the capture-duration timer and the packet-count counter at the same time. The TCP dump stops when the first of the
thresholds is met. That means that even if the duration timer is 9000 seconds, if the maximum file count parameter is met first, the dumps
stop.
To enable a TCP dump, use the following command.
• Enable a TCP dump for CPU bound traffic.
CONFIGURATION mode
tcpdump cp [capture-duration time | filter expression | max-file-count value | packet-count
value | snap-length value | write-to path]
1060 Debugging and Diagnostics