PoS (Packet over SONET) is a standard for transmitting packets (primarily IP) over SONET/SDH links. It is defined in IETF RFC 1619: PPP over SONET/SDH. PoS provides a simple and efficient, high-speed layer for transferring packets, using existing techology on the backbone. It it basically a high speed PPP link, with optional PPP authentication capabilities.

Benefits

• More efficient than ATM for IP
• Connects well to LANs
• Multi-protocol encapsulation
• Error control
• Link inititalization
• Erorr Free
• Interoperability over existing infrastructure

RADCOM provides testing solutions for networks running on PoS from speeds of OC3 to OC48, including protocol analysis at all 7 layers, and analysis of problems at the physical layer.