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SONET_Usr.bk Page 40 Wednesday, December 13, 2000 11:11 AM
Selecting Test Features - SDH Operation
Using Receive Overhead Capture
Using Receive Overhead Capture
Description
Regenerator section, Multiplexer section 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 SDH interface and payload as required. See "Setting Receive
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.
40
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"Logging on Demand " page 146.
Interface" page 30.
TEST FUNCTION
RSOH- Regenerator Section Overhead
MSOH- Multiplexer Section 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
, SDH, O/H CAPTURE as shown above.
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