Interfaces History workspace

The Interfaces History workspace provides historical information about a selected TCP/IP interface. This workspace displays the most recent 24 hours of historical data by default. You must configure historical collection for the Interfaces attribute group to see data for this workspace.

This workspace can be displayed by right-clicking on the Interfaces Navigator item or by clicking on a the Link icon in a row of the Interfaces Summary table.

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.

This workspace can be displayed clicking on the Link icon for a specific interface in the Interfaces Summary table

Notes:

  1. If the address space being monitored is running on z/OS v1.11 or earlier, the values for these attributes are retrieved using SNMP. If the address space being monitored is running on z/OS v1.12 or later, the values for these attributes are retrieved using the z/OS Communications Server callable network management interface (NMI).
  2. If you are viewing this workspace on z/OS v1.12, non-strategic interfaces report only status information. Performance-related attributes show a value of zero (0). The strategic interfaces have one of the following Interface Types:
  3. Under z/OS v1.11 or earlier, it is possible for the value of the Percent Inbound Packets in Error attribute to actually exceed 100%. This occurrence is due to the way inbound packets and errors are counted in the Communications Server TCP/IP stack. Many errors are encountered and recorded before the stack can determine how many packets were received, or whether the packets are unicast, multicast, or broadcast. In this case, the TCP/IP stack records the error, but not the inbound packet. In unusual circumstances, the number of errors recorded might exceed the number of inbound packets recorded.
  4. Configuration of historical collection for the Interfaces attribute group is required to see data for this workspace.

The following views provide information in this workspace:

Interfaces History Summary table

The Interfaces History Summary table contains one row for each TCP/IP interface and provides a summary of detailed information for each. The Interface attributes can display performance and identifying information for a specific interface. The data in this table is retrieved using SNMP.

The attributes displayed in the history workspaces represent a subset of the attributes supported by the Interfaces workspace (for enhanced performance). For a complete list of the attributes available in the Interfaces Summary table, and a brief description of each, see the Interfaces Attributes help panel. Because this is a history panel, a unique attribute is listed in addition to the Interfaces 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:

See also: