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Optical Packet Edge System is based on Resilient Packet Ring (RPR) technology pioneered by Nortel and standardized by the IEEE 802.17 working group. RPR allows interoperability between multi-vendor equipment and between networks of different service providers.

• Reduced need for external routers and DS-1/VT-1.5 facilities between LAN locations
• Seamless inter-working with SONET, and IP networks
• Metro or wide-area level traffic aggregation for efficient fiber utilization
• Efficient, cost-effective Ethernet transport between multiple, widely-separated sites
• Ability to support a mix of packet and TDM traffic over the same network
• Restoration times of less than 50ms in the case of fiber cut or node failure