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MPLS基础知识概述
2022-07-26 21:12:00 【InfoQ】
- TE:基于RSVP-TE可以实现MPLS TE路径标签的申请和分发,可以实现资源保证、显式路径转发等TE特性,弥补了IP网络对TE支持能力差的短板。
- VPN:MPLS标签可用于标识VPN,实现VPN业务的隔离。VPN是MPLS当前最大的应用场景之一,是解决企业互联和多业务承载的关键技术,也是当前运营商营收的重要手段之一。
- FRR::IP网络无法提供完备的FRR保护,导致无法满足电信级业务的需求。MPLS的出现提升了IP网络FRR的能力,在大多数故障场景中满足了50 ms电信级保护倒换的需求。
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