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SONET_Usr.bk Page 82 Wednesday, December 13, 2000 11:11 AM
Selecting Test Features - SONET Operation
Using Receive Overhead Capture
Using Receive Overhead Capture
Description
Section, Line and Path overhead provide network support functions, responding
dynamically to network conditions and needs. It is therefore useful to capture
overhead activity on a frame by frame basis.
TIP:
The Overhead Capture display can be logged to the chosen logging device. See
1 Set up the receive SONET interface and payload as required. See "Setting
HOW TO:
2 Select
3 Choose the overhead type as required.
4 Choose the Byte or bytes of overhead to be captured.
Choose the TRIGGER to determine the start point of the capture.
by frame monitor of the chosen byte or bytes.
used for transient detection from a specified expected state.
82
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"Logging on Demand " page 146.
Receive Interface" page 70.
TEST FUNCTION
SOH- Section Overhead
LOH- Line Overhead
POH- Path Overhead
- starts immediately the capture is initiated. Can be used to provide a frame
OFF
-captures activity after your specified overhead state has occurred. Can be
ON
, SONET, O/H CAPTURE as shown above.
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