Specifications

Managing the MGX 8220 Shelf 3-15
TFTP User Interface
Configuring and Collecting Statistics
Configuring statistics specifies to the shelf which statistic counters are to be collected. A file is
constructed which lists the statistic counters to be collected and is downloaded into the shelf using
TCP/IP TFTP.
Collecting statistics causes the statistics to be transferred as a data file to the workstation. The
workstation first requests the statistics and the MGX 8220 shelf responds by uploading the statistic
file to the workstation. A list of statistics counters for each card type is provided in Appendix B,
“Specifications”.
The method of collecting statistics in MGX 8220 conforms to the standards employed in IGX, IPX
and BPX nodes. StrataView Plus (Release 7.2 and later) supports the standard TFTP method of
configuring and collecting statistics and can be used on the workstation which is attached to the
MGX 8220 shelf for this purpose. StrataView Plus provides a convenient and easy-to-use graphical
user interface (GUI) for both configuring the statistics to be collected and actually collecting those
statistics from the MGX 8220 shelf. Using StrataView Plus relieves the user of knowing and
constructing the file formats required for correctly transferring the statistics files.
Each type of statistic collected in WAN switching networks is categorized under a major grouping
known by an object type name and an object type number and minor grouping known as a sub-type.
Within the sub-type, the statistic has a statistic type number. For example, the statistic “ATM Cell
Header HEC Errors” has an object type name of IPX-ATM, an object type of 2, a sub-type of 1, and
a statistic type of 45. This combination of groups and type number uniquely identify a particular type
of statistic.
Configuring Statistics
Each MGX 8220 statistic can be configured individually for collection. To configure statistics, the
workstation transfers a file (filename = enable.stats) using TFTP to the MGX 8220 shelf which
specifies those statistic types to be collected. The specified statistics are grouped by Object Type,
then Object Sub-type. Multiple Object types each containing multiple Object Sub-types each
containing multiple Statistic types can be specified in one file.
Collecting Statistics
To collect statistics from the MGX 8220 shelf, the workstation uses the following TFTP command
to issue a request in the form:
Get Nodename.mmddyyhhmm
where
• Nodename is the node name given to the MGX 8220 shelf.
• mmddyyhhmm is the date/time expressed in GMT.
Upon receipt of this message, the shelf responds with a file containing the collected statistics.