http://www.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/5.2/html/Virtualization/sect-Virtualization-THow_To_troubleshoot_Red_Hat_Virtualization-Debugging_and_Troubleshooting_Red_Hat_Virtualization.html Right after the brctl examples, there's a line that starts with "Other utilities which can be used...". This sentence ends prematurely. Was it supposed to be a subsection title? Could tools (such as iostat, lsof, etc) listed at the start of the Troubleshooting section also have one lines describing them like done for strace, vncviewer, vncserver? Is 'sysstat' an RPM package containing iostat and sar? The description on p.253 make it sound like a command.