摘要：SDN是目前运营商关注的的热点技术。SDN起源于实验室,目前运营商和学术界都在探讨SDN在运营商网络应用的场景。本文从运营商IPRAN网络、城域网、IPCore网现在面临的主要挑战着手,介绍了基于SDN方案在运营商网络中简化运维、提升业务部署灵活性、提升带宽利用率方面的价值。
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