Test Plan for Optical Grooming Switches - Light Reading
Test Plan for Optical Grooming Switches - Light Reading
Test Plan for Optical Grooming Switches - Light Reading
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<strong>Test</strong> <strong>Plan</strong> <strong>for</strong> <strong>Optical</strong> <strong>Grooming</strong> <strong>Switches</strong><br />
To confirm the ability to enable a 34/45Mbit payload (E3/DS3) within a SONET (STS-1<br />
SPE) circuit, with management in<strong>for</strong>mation, to be delivered over an SDH VC3.<br />
An STS-1 SPE SONET circuit will be set up to be converted to a VC3 SDH circuit. This<br />
conversion requires the equipment to bring the Higher Order SONET STS-1 into the switch<br />
as a Lower Order VC3 in order to encapsulate this within a TU3 and transported in the Higher<br />
Order AU4 in the SDH circuit.<br />
<strong>Test</strong> method:<br />
1. Following on from successful completion of TCA040<br />
2. Set-up tester to provide on port PAR#8 STS-1 SPE, DS3, PRBS15 within OC-48.<br />
3. Set-up tester to provide on port LA#8 AU4, VC3, 45M, PRBS15 within STM-16.<br />
4. Set-up trail across ports PAR#8 to LA#8 to carry STS-1 SPE and convert to VC3.<br />
5. Insert ALL 0’s in J1 trace Identifier (transmit and receive). This is to prevent J1 mismatch errors as J1 is 15<br />
consecutive bytes + 1 byte CRC in SDH but 64 consecutive free<strong>for</strong>m bytes in SONET.<br />
Expected result:<br />
• SONET and SDH testers report error free transmission.<br />
• Once J1 is set to all 0’s on both sides of the link no trace mismatch should be raised.<br />
Any other comments:<br />
None<br />
BLOCK 8. Tandem Connection Monitoring<br />
END OF BLOCK 7<br />
<strong>Test</strong> Block description:<br />
Investigating the Tandem Connection Monitoring capabilities.<br />
Procedure:<br />
This test checks basic Tandem Connection Monitoring functionality.<br />
If the vendors equipment does not support TCM functionality then these tests can be skipped.<br />
Lack of support <strong>for</strong> TCM will be noted. However if TCM is not supported the equipment<br />
must transport the B3, N1 and N2 bytes transparently.<br />
This test will only be conducted <strong>for</strong> a single test circuit in one direction. <strong>Test</strong> is conducted at<br />
VC-4 granularity only, they will not be repeated at different traffic granularities (N1 bytes<br />
used <strong>for</strong> VC-3’s and VC-4’s N1 bytes used <strong>for</strong> VC-2, VC-11 and VC-12).<br />
These tests do not include monitoring the status of the N bytes within the TCM section,<br />
although this is possible with an additional tester working in “through” mode.<br />
Procedure:<br />
Blocks of tests to be proceed in sequence from TCA042 to TCA049<br />
<strong>Test</strong> equipment needed:<br />
Four SONET/SDH test sets.<br />
Switch management system.<br />
<strong>Test</strong> equipment placement and set-up:<br />
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