TCP/IP Summary History Workspace
The TCP/IP Summary Workspace displays historical performance data
for the general health and activity of the TCP/IP stack. A TCP/IP
protocol stack is uniquely defined within a z/OS® system image by the TCP/IP job name and the
fully qualified host name or IP address. This workspace displays the
most recent 24 hours of historical data by default.
Short Term History support is an optional feature that must be
enabled for this workspace to display attribute and metric values.
If this workspace does not contain data, you will see message KFWITM220E
Request failed during execution. displayed in the Tivoli Enterprise
Portal message area. Contact your system administrator to request
that historical collection be started for this attribute group.
The following views provide information in this workspace:
- Telnet Session Count: Shows a historical
view of the number of active Telnet sessions for the specified time
period in a line graph.
- Transmission Failures: Shows a historical
view of the percentage of transmission failures for the specified
time period in a time-line chart, where:
- Yellow represents the input discard percentage.
- Blue represents output discard percentage.
- Pink represents the TCP retransmit percentage.
- Green represents the UDP discard percentage.
- Fragmentation and Reassembly: Shows a historical
view of the percentage of packet fragmentation and reassembly for
the specified time period in a time-line chart, where:
- Yellow represents the reassembly percentage
- Blue represents reassembly failure percentage
- Pink represents the fragmentation percentage
- Green represents the fragmentation failure
percentage
- Throughput Rate: Shows a historical view
of throughput expressed in bytes as a percentage of capacity for the
specified time period in a time-line chart.
- CPU Utilization: Shows a historical view
of CPU utilization expressed as a percentage of capacity for the specified
time period in a time-line chart.
- TCP/IP Summary History Summary Table: Provides
detailed performance information about the TCP/IP stack displayed
in the charts on the TCP/IP Summary History workspace.
TCP/IP Summary History Summary Table
The TCP/IP Summary History Table provides detailed performance
information about the TCP/IP stack displayed in the charts on the
TCP/IP Summary History workspace for the specified time period.
The attributes displayed in the history workspace represents a
subset of the attributes supported by the TCP/IP Summary workspace
(for enhanced performance). For a complete list of the attributes
available in the TCP/IP Summary History Summary Table, and a brief
description of each, see the TCP/IP Address
Space help panel. Because this is a history panel, a unique attribute
is listed in addition to the TCP/IP Summary attributes:
- Recording Time
- The time and date of the data sampling. Recording time displays
the exact collection interval boundary (such as every 00:15:00 minutes).
This value is displayed in the following format:
mm/dd/yy hh:mm:ss
Where:
- mm = Month
- dd = Day of the month
- yy = Year
- hh = Hour
- mm = Minute
- ss = seconds
See also: