The root element of a request for a network measurement The root element of a request This request is for values between startTime and endTime This request is for values with timeTolerance of time Seconds since the Unix epoch. Seconds since the Unix epoch. The interval between measurements to be returned Seconds since the Unix epoch. A tolerance in seconds. The name of the characteristic requested A collections of parameterSets Requested statistics The statistics should be derived from all the measurements in this time interval. If this is omitted, one summary should be returned. A generic, abstract set of parameters. An enumeration of the available types of parameter use The value or range requested should be used if possible, or the nearest available value should be used. If the parameter is "nil", then the service implementation default should be used. The requested value or range should be used. If that value is not available, no measurements should be attempted or returned. Exact means that the parameter must be exactly the given value, minimum and maximum allow the parameter to have a range of values The request is for a parameter value exactly equal to the one given. The parameter value should be at least equal to the given value The parameter value should be at most equal to the given value The attributes required by all Parameter types A parameter with type double A parameter with type int A parameter with type string A parameter with type token A parameter with type short A parameter with type byte A parameter with type boolean Parameters for the IP layer The duration of the test ICMP or UDP or TCP (is this information implied by having a tcpParameterSet element, say?) Size of packets sent on network Number of packets sent on network What algorithm is used to space packets (poisson or periodic) Time between test packets, in seconds (for periodic tests) IP version (this information is also available as an attribute of the IPAddress, do we need it both places?) Type of service (IP precedence) IPv4 only? differentiated services code point IP v6 option for QoS The threshold used to distinguish between a large finite delay and loss Amount of test traffic Are bytes moving memory to memory or disk to disk? Number of parallel streams Parameters for the TCP layer The duration of the test Size of packets sent on network Number of packets sent on network What algorithm is used to space packets (poisson or periodic) Time between test packets, in seconds (for periodic tests) The threshold used to distinguish between a large finite delay and loss Amount of test traffic Are bytes moving memory to memory or disk to disk? Size of TCP buffers used Reno, Vegas, HSTCP, ScalableTCP, etc Number of parallel streams Parameters for the ICMP layer The duration of the test Size of packets sent on network Number of packets sent on network What algorithm is used to space packets (poisson or periodic) Time between test packets, in seconds (for periodic tests) The threshold used to distinguish between a large finite delay and loss Amount of test traffic Parameters for the application layer The duration of the test Are bytes moving memory to memory or disk to disk? The type of traffic pattern, for example, H323 to emulate video conferencing Parameters related to which tool to use Description of the tool to use The name of the tool The major version number requested The minor version number requested The release number of the tool The build date of the tool The vendor who produced the tool Any versioning information that does not fit elsewhere The command line arguments to provide to the tool. This can either consist of a series of arg elements each representing a single argument, or a line element, which will be split by spaces and passed to the command. The command line arguments to provide to the tool. This can either consist of a series of arg elements each representing a single argument, or a line element, which will be split by spaces and passed to the command. Base class for any network entity, such as a host, router or path Path between a network source and destination node A network node A node that is identified by a name alone Abstract network address Internet Protocol address Internet Protocol version (4 or 6) A DNS name address The type of the statistic element An indication of the length of time for which statistics are calculated. If ommitted or left "unbounded", the statistic will be calculated over every raw data point requested. Head of the statistics substitution group Request a count of the measured values Request the minimum measured value Request the maximum measured value Request the mean of the measured values Request the median measured value Request the standard deviation of the measured values Request the nth-percentile of the measured values. Default n=95% Request the +/-n% confidence interval. Default n=95% An enumeration containing the value "now" An enumeration containing the value "unbounded" The number of seconds since the unix epoch, or "now". An interval in seconds, or "unbounded"