Endace DAG 4.2S, Руководство пользователя

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EDM01-02: DAG 4.2S Card User Guide
©2005 16 Version 7: May 2006
Optical light
level problem
The following situation indicates a problem with the optical light levels:
LoS OoF LoF SectionBIP LineBIP LineFEBE PathBIP PathFEBE RxFrames RxBytes
0 0 0 3943886 769018395 126206289 7887612 174 472777619 4294901759
1 1 1 8048 1569360 257504 16096 0 0 298988352
1 1 1 8095 1578525 259040 16190 0 0 300750950
1 1 1 8096 1578720 259072 16192 0 0 300780107
1 1 1 8097 1578915 259104 16192 0 0 300810210
1 1 1 8093 1577940 258976 16186 0 0 300659848
Stabilise
configuration
Follow these steps to stabilise the configuration.
Step 1. Ensure Columns are at Zero
Check that the
LoS
,
OoF
, and
LoF
, being the first three columns, are zero.
Check light levels.
Step 2. Inspect for BIP Errors
Check that no BIP errors occur, otherwise check cabling and light levels.
Step 3 Check CRC Settings
For PoS, ensure scrambling and CRC settings are correct.
Step 4. Check FEBE Errors
FEBE errors indicate that the remote end of the link is detecting errors.
NOTE: This may not affect the capture of data by the DAG card.
4.5 Inspect Links Data and Cells
Description On Packet-over-SONET (PoS) links it can happen that there is very little
or no data information received. This typically indicates incorrect
scrambling settings.
While a default is provided that matches typical link settings, the actual
configuration varies from network to network.
A remedial action is to vary the scramble and pscramble options and
performing a retry.