Technologies

1588v2 PTP

• The IEEE 1588v2 Precision Time Protocol (PTP) enables the transfer of timing across a Packet Transport Network. Testing 1588v2 PTP involves proving the accuracy and performance of clock recovery according to the ITU-T G.8261 Test Cases. It also includes testing protocol conformance as well as evaluating the accuracy of Time of Day (ToD) and Frequency under Real Network conditions.

DOWNLOAD: Technical Brief:IEEE 1588v2 for Mobile Backhaul

DOWNLOAD: Application Note:Testing 1588v2 Transparent Clocks (TCs) and Boundary Clocks (BCs)

Sync-E

• Synchronous Ethernet (or Sync-E) is an enhancement of legacy Ethernet at the physical layer to provide more accuracy when synchronisation is recovered from the line. Testing Sync-E involves validating the physical performance according to the ITU-T G.8262 recommendation and proving conformance of the management protocol (ESMC) to the ITU-T G.8264 recommendation.

DOWNLOAD: Application Note:Testing Sync-E to ITU-T G.8262

 CES (Pseudowire / SAToP / CESoP / TDMoIP)

• Circuit Emulation Services (CES) enable the transfer of TDM (E1, T1, etc.) traffic over Ethernet. Testing CES involves proving the accuracy of data and timing transfer according the the ITU-T G.8261 and MEF-18 Test Cases.

DOWNLOAD: Whitepaper:Alternative Approach to CES Testing

Ethernet OAM (Y.1731 / 802.1ag)

• Ethernet Operations, Administration and Management (OAM) enables Ethernet networks to provide fault detection and reporting as well as manage and monitor the performance. Additionally, it provides for protection of service in case of faults. Testing Y.1731 and 802.1ag involves creating targetted fault and impairment conditions and validating the correct operation and reporting of the Ethernet OAM elements.