PTCL Training & Development1 NGSDH Dr Muhammad Khalil Shahid NGSDH Dr Muhammad Khalil Shahid

SDH Problems The traffic type is changing Challenge… How to use bandwidth efficiently for both voice and data traffic Lack of fine granularity to accommodate all potential clients’ stream rates

Data traffic is growing exponentially Accommodating this traffic is must Data traffic handling is limitation of SDH Need for new system which can support data Traffic WHY NGSDH

Continue… The data packet transport (Ethernet, PPP) is a challenge for SDH This is because they are connectionless, use statistical multiplexing, and can be best-effort technologies This is the opposite of SDH which is predictable and based on time division multiplexing (TDM)

Solution Two options  Some modification to existing SDH  Metro Ethernet First option will save investment already made in SDH No need for major modification

NGSDH- Ethernet Over SDH

Ethernet Over SDH SDH METRO NETWORK SDH Ring-1 SDH Ring-2

NG SDH – Drivers 8 The drive to SDH Next Generation development was: The desire to find one simple encapsulation method that was capable of accommodating any data packet protocols Secondly, the need to use bandwidth accurately Solution … A new adaptation protocol layer is required and a new mapping mechanism for controlling bandwidth use

What is NGSDH Evolution and enhancement of existing SDH Improves efficiency and BB service potential Enables transporting data efficiently, without needing to replace the installed equipment base Only needed to update/replace the edge nodes The network is then ready to transport Ethernet

NG-SDH Features Enables operators to provide more data transport services while increasing the efficiency of installed SDH base The technology is implemented in the edge nodes only, no need to install an overlap network or migrating all the nodes This reduces the cost per bit delivered, and will attract new customers while keeping legacy services