A strong packet loop, also known as IEEE 802.17, is a standard protocol designed for optimal transmission of data traffic over optical loop networks. Development of the standard began in November 2000 and has undergone several modifications since the initial standard was completed in June 2004.

The RPR packet operates at the Media Access Control (MAC) layer of the Open Systems Interconnection (OSI) model. Provides a packet-based send installation, aimed at improving the efficiency of Ethernet and IP services. RPR provides improved bandwidth utilization and performance, faster deployment speed and equipment and improved operating costs.

The control signal is transmitted in the opposite direction to the traffic of the data carrying its information. For example, if the outer loop holds the data, the inner loop has its own control information.

The RPR node can dynamically negotiate bandwidth problems with other nodes. It's a quality conscious installation (QoS) that can schedule traffic in priority. This prevents congestion and reduces failed transmissions. If any link is broken in any loop, the data will continue to be transmitted through title and editing methods. In the address, all nodes are notified of the broken link and redirect their traffic. In the envelope, data traffic is returned to the last node before the connector is broken and routed to the destination station through the other loop.
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