Dell S6000 FTOS 9.0(2.0) Command Line Reference Guide for the System - Page 344

www.dell.com | support.dell.com packet-count snap-length write-to Enter the number of packets to capture. The counter begins as soon as the command is enabled. Range: 10-150000 Enter the number of bytes per packet to capture. Use this option to reduce the size of the captured packets, to capture only the needed headers and avoid rest of the data portion of the packet. Range: 0-1200 Enter the location to save the captured packets. Files can be saved to flash, to FTP, SCP, or TFTP flash://filepath ftp://userid:password@hostip/filepath scp://userid:password@hostip/filepath tftp://hostip/filepath. Defaults Disabled Command Modes EXEC Privilege Command History Version 9.0.2.0 Version 8.3.11.1 Version 8.3.11.5 Introduced on S6000 Introduced on Z9000 Introduced on S-Series Usage Information The capture-duration timer and the packet-count counter can be used 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. Entering no tcpdump stops the file dump immediately, without waiting for a threshold to be met. The files saved on the flash are located in the flash://TCP_DUMP_DIR/Tcpdump_/ directory. The file name is tcpdump_*.pcap. There can be up to 20 Tcpdump_ directories. If more than 20 files are created, the oldest is overwritten. Offline Diagnostic Commands The offline diagnostics test suite is useful for isolating faults and debugging hardware. While tests are running, FTOS results are saved as a text file (TestReport-SU-X.txt) in the flash directory. This show file command is available only on master and standby. Important Points to Remember • Offline diagnostics can only be run when the unit is offline. • You can only run offline diagnostics on a unit to which you are connected via console. • You cannot run diagnostics on a unit to which you are connected via a stacking link. • Diagnostic results are stored as a text file (TestReport-SU-X.txt) in the flash directory. • Diagnostics only test connectivity, not the entire data path. The offline diagnostics commands are: • diag stack-unit 344 | Debugging and Diagnostics