NetSpy Daily % Time VR Held/Blocked
NetSpy Daily % Time VR Held/Blocked chart displays the percentage of time during the day that a virtual route (backbone link) is held or blocked.
mics142
The "Held" status is the first level of virtual route congestion; "Blocked" status is the highest level of congestion. The end- user response time is prolonged when a virtual route becomes held or blocked, because during that period no messages can be sent across the route. Virtual route congestion can be caused by such factors as insufficient buffers in a down stream NCP or an over- utilized boundary link.
Format
This display produces a vertical bar chart of the percentage of time that a virtual route is held or blocked.
Inquiry ID
- Color Graphics: SNTCDZ
- Printer Graphics: SNTPDZ
Data Source (File/Timespan)
SNTNVR01 - Previous day
Data elements used
- SYSID
- NVRHSA
- NVRDSA
- NVRVRRTE
- NVRPCTHL
Calculations
None
Usage considerations
Use along with SNTCD5, NetSpy Daily Average VR Response Time, to isolate virtual route performance problems. Also use with other MICF inquiries that measure link utilization and NCP buffer and cycle utilization to isolate the source of the congestion.
NetSpy Daily % Time VR Held/Blocked Sample
NetSpy Daily % Time VR Held/Blocked 2 INQUIRY: SNTPDZ RUN DATE: 03SEPyy ----------------- NETWORK ID=NETWORK1 SYSID=S028 Host Subarea=28 Destination Subarea=10 Transmission Priority=1 ------------------- % Time Sum 10.00 + *** | *** | *** | *** 9.00 + *** | *** | *** | *** 8.00 + *** | *** | *** | *** 7.00 + *** | *** | *** | *** 6.00 + *** | *** | *** | *** 5.00 + *** | *** | *** | *** 4.00 + *** | *** | *** | *** 3.00 + *** | *** | *** | *** 2.00 + *** | *** | *** | *** 1.00 + *** | *** | *** | *** --------------------------------------------------------------------------------------------------------------------------- 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Hour Of Day