HPR Connections Workspace

The HPR Connections workspace displays performance data for High-Performance Routing (HPR) Rapid Transfer Protocol (RTP) connections (pipes) when one endpoint of an HPR connection resides on a monitored z/OS® system image. An HPR connection is uniquely defined by a system name and the name of a local RTP physical unit (PU).

This workspace is displayed by clicking on the HPR Navigator item.

Performance data for HPR connections that flow over EE connections will be collected by default. You can modify the collection to include HPR connections that do not flow over EE connections by executing a KN3FCCMD START EEHPR command or by specifying Yes as the value for the High Performance Routing Connections field in the Configuration Tool (the default is no). For more information, refer to IBM Tivoli OMEGAMON XE for Mainframe Networks: Configuration Guide.

The HPR Connections workspace contains the HPR Connection Summary Table and the following information in bar charts:

Round Trip Time Variance > 5 ms Bar Chart

This bar chart provides, by local RTP PU name, the average round-trip time variance in milliseconds or the smooth deviation for this RTP pipe when it is greater than zero (0).

Path Switches > 0 Bar Chart

This bar chart provides, by local RTP PU name, the number of path switches that were initiated by the remote or local nodes during the most recent interval.

Packet Retransmission Rate > 0 Bar Chart

This chart provides, by local RTP PU name, the number of HPR packets that were retransmitted, per minute, during the most recent interval when these packet rates are greater than zero (0).

Byte Rate > 0 Bar Chart

This bar chart provides, by local RTP PU name, the number of HPR bytes that were sent and received, per minute, during the most recent interval when that number is greater than zero (0).

Packet Rate > 0 Bar Chart

This bar chart provides, by local RTP PU name, the number of HPR network-layer packets that were sent and received, per minute, during the most recent interval when that number is greater than zero (0).

Out-of-Sequence Buffers > 0 Bar Chart

This chart provides, by local RTP PU name, the number of buffers that are in the out-of-sequence queue when that number is greater than zero (0).

Unacknowledged Buffers Chart

This chart provides, by local RTP PU name, the number of buffers that are in the unacknowledged queue when that number is greater than zero (0).

HPR Connection Summary Table

The HPR Connection summary table provides detailed information about the HPR connections displayed in the bar charts on the HPR Connections workspace. Row entries in the HPR Connection Summary table also link to the IBM Tivoli NetView for z/OS Tivoli Enterprise Portal Agent Session Data workspace. This link provides access to availability data about the selected HPR connections.

Note: To limit the amount of information displayed, this workspace has a filter defined to the table query. The filter is: SESSIONS > 0. This restricts the number of rows retrieved.

For a complete list of the attributes available in the HPR RTP Connections summary table, and a brief description of each, see the HPR RTP Connections Attributes help panel.

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