Test Plan for Optical Grooming Switches - Light Reading

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Test Plan for Optical Grooming Switches To confirm the ability to enable a 34/45Mbit payload (E3/DS3) within a SONET (STS-1 SPE) circuit, with management information, to be delivered over an SDH VC3. An STS-1 SPE SONET circuit will be set up to be converted to a VC3 SDH circuit. This conversion requires the equipment to bring the Higher Order SONET STS-1 into the switch as a Lower Order VC3 in order to encapsulate this within a TU3 and transported in the Higher Order AU4 in the SDH circuit. Test method: 1. Following on from successful completion of TCA040 2. Set-up tester to provide on port PAR#8 STS-1 SPE, DS3, PRBS15 within OC-48. 3. Set-up tester to provide on port LA#8 AU4, VC3, 45M, PRBS15 within STM-16. 4. Set-up trail across ports PAR#8 to LA#8 to carry STS-1 SPE and convert to VC3. 5. Insert ALL 0’s in J1 trace Identifier (transmit and receive). This is to prevent J1 mismatch errors as J1 is 15 consecutive bytes + 1 byte CRC in SDH but 64 consecutive freeform bytes in SONET. Expected result: • SONET and SDH testers report error free transmission. • Once J1 is set to all 0’s on both sides of the link no trace mismatch should be raised. Any other comments: None BLOCK 8. Tandem Connection Monitoring END OF BLOCK 7 Test Block description: Investigating the Tandem Connection Monitoring capabilities. Procedure: This test checks basic Tandem Connection Monitoring functionality. If the vendors equipment does not support TCM functionality then these tests can be skipped. Lack of support for TCM will be noted. However if TCM is not supported the equipment must transport the B3, N1 and N2 bytes transparently. This test will only be conducted for a single test circuit in one direction. Test is conducted at VC-4 granularity only, they will not be repeated at different traffic granularities (N1 bytes used for VC-3’s and VC-4’s N1 bytes used for VC-2, VC-11 and VC-12). These tests do not include monitoring the status of the N bytes within the TCM section, although this is possible with an additional tester working in “through” mode. Procedure: Blocks of tests to be proceed in sequence from TCA042 to TCA049 Test equipment needed: Four SONET/SDH test sets. Switch management system. Test equipment placement and set-up: 36
SONET/S DH tester NE TCM- No 1 A SONET/S DH tester No 3 TCA042: Create VC-4 trail across STM-16 Purpose: Create a VC-4 trail across STM-16 between PAR#8 and LA#8. Test method: 1. Place SONET/SDH tester in poison shown in above diagram. A SONET/SDH protocol tester to monitor traffic at Port A. • Clock from received optical • Data Optical STM-16, VC-4, bulk, PRBS15. A SONET/SDH protocol tester to monitor traffic at Port B. • Clock from received optical. • Data Optical STM16, VC-4, bulk, PRBS15. Test Plan for Optical Grooming Switches A SONET/SDH protocol tester in through-mode within main trunk in direction between Port A and Port B. • Clock from received data. • Data Optical STM16, VC-4, • Through mode. Out of service, transparent. 2. Create a VC-4 trail across STM-16 between PAR#8 and LA#8 Expected result: • SONET and SDH testers report error free transmission. TCA043: N-byte transparency test. Purpose: Confirm transparency of N1 bytes. SONET/S DH tester Test method: 1. Set A and B to “Transparent” 2. Insert test pattern into N1 byte of the SONET/SDH path overhead bytes at interface A (tester No. 1). The same test patterns should appear at interface B, check on tester No. 4. Expected result: • Confirm test pattern transmitted transparently to interface B. TCA044: TC-APId path trace. Purpose: Transmission of expected TC-APId path trace. Test method: 1. Set A to “Transparent” and B to terminate the TCM bytes. No 2 NE SONET/S TCM- DH tester B No 4 37
Page 1 and 2: Test Specification Issue 2.1 (25 Ju
Page 3 and 4: Published by BTexact Technologies -
Page 5 and 6: Introduction Test Plan for Optical
Page 7 and 8: Test Plan for Optical Grooming Swit
Page 11 and 12: 4 OC-48s over a WDM Test Plan for O
Page 13 and 14: Client Interface Name LON#5 STM-16
Page 15 and 16: Major problem during BTexact testin
Page 19 and 20: Expected result: • SONET/SDH test
Page 21 and 22: Other comments: None END OF BLOCK 1
Page 23 and 24: Other comments: None Current route
Page 27 and 28: Protection route. Available resour
Page 35: Test Plan for Optical Grooming Swit
Page 41 and 42: J0 should remain unaltered. Test Pl
Page 45 and 46: Any other comments: None Test Plan
Page 51 and 52: BLOCK 15. STM-64 MS-SPRING tests TC
Page 57 and 58: BT Commercial Contact: name address
Page 63 and 64: 12. BT Testing Services Test Plan f
Page 65 and 66: Schedule 1: Personal Non- Disclosur

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