show active-measurements

Displays a table of statistics about currently configured active probes.

show active-measurements [ traceprobe | detail | schedule ]
 
                     [ [ group <name> ] | no-group ]
 
                     [ target <probe> ]
 
                     [ address <address> ]
 
                     [ range-address <range> ]
 
                     [ type { tcp | icmp | traceprobe } ]
 
                     [ ustat <uname> ]
 
                     [ successful ]
 
                     [ errors <list> ]
 
                     [ probing <address> [ range-probing <range> ] ]
 
                     [ prefix <prefix> ]
 
                     [ prefix-probing <prefix> ]
 
                     [ errors <list> ]
 
                     [ | { include | exclude | begin } <exp> ] 
 
                     [ > <url> ]
 

• name--name of an active-measurement group
• probe--IP address or domain name of a probe, as entered in CNA configuration
• address--DNS-resolved IP address of a probe
• range--range in CIDR format (a.b.c.d /n)
• uname--USTAT module name
• list--error codes; can be any combination of the following:
• d--DNS
• h--Host unreachable
• n--Network unreachable
• p--Port unreachable
• q--Queue drop
• t--Probe timeout
• o--Other
• prefix--prefix address in CIDR format (a.b.c.d/n)
• exp--a regular expression, to be used as a filter
• url--destination for output

System configuration mode, login-level access.

The CNA software maintains a table of statistics for all currently configured active probes. When you execute the show active-measurements command, the CNA software locates and displays all rows of the master table that match the specified arguments.

The traceprobe keyword changes the display format to show a new column in the output (labeled “probing”). The address in this column is that of the host that the traceprobe has found and is using instead of the actual target address; this happens because traceprobes run a traceroute towards the target and will use the farthest responding host in the traceroute path. When using this command, you don’t need to type the keywords type traceprobe - this will be automatic.

Use the schedule keyword to show the active probing schedule for each target.

Use the detail keyword to get detailed information on active probes.

Use the range-address keyword to limit output to addresses within a desired range.

Use the range-probing keyword to limit output to addresses within a desired traceprobing range.

Use the no-group keyword to display data for all active measurements not associated with a group.

To see data for all active measurements, do not specify either a group name or the no-group keyword.

You can pipe the command through one of the following filters:

• include--shows all lines in the output which contain a match to the specified regular expression
• exclude--shows all lines in the output except those which contain a match to the specified regular expression
• begin--shows all lines in the output beginning with the first match to the specified regular expression

The vertical-line pipe character | is required when a filter is used.

You can send the output to a remote file location, by piping the display to a remote URL (leading > required). See the copy command for URL syntax.

Use the cidr-lookup command to clear selected rows in the master table.