Testing ATM Networks
Scanning Circuits for ATM Activity
6
6-39
3. Make sure that the
Start Activity Scan
option is on the selection line. Then,
press
ENTER
. The OC3port Plus begins testing the received traffic and storing
address results.
The scanning is done in two stages. First, the activity is isolated to the virtual
paths; then, channel activity within the active virtual paths is identified.
During the scan, the OC3port Plus displays the following progress reports:
AUTO-SCAN PROGRESS
ELPSD SEC :1.8
PHASE :VPI SCAN
LAST VPI :111
za120f.eps
This display gives you the following information:
•
Line 1
Title Line (
AUTO-SCAN PROGRESS
)
•
Line 2
Elapsed scan time in seconds (
1.8
)
•
Line 3
Portion of the search underway (
VPI SCAN
)
•
Line 4
Address of last VPI (
LAST VPI
) or VCI (
LAST VCI
)
detected.
When the scan is completed, the OC3port Plus displays the results of the scan
on the LCD. For example:
VPI SCAN: 4 FOUND
1) VPI: 111
2) VPI: 016
3) VPI: 010
za121f.eps
As indicated on Line 1 of this display, the OC3port Plus found four virtual
paths with ATM activity. The specific VPIs are identified by address.
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
