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Overview:

Ethernet Ring Protection (ERP), part of the Siemens Advanced Ethernet Package, is a network protection mechanism that enables carriers to enjoy an SDH/SONET-like ring protection while leveraging the cost-effectiveness of Ethernet technology. ERP is interoperable with traditional Ethernet and MPLS protection mechanisms, even when other vendors' switches are part of the ring. The ERP protection mechanism is a key enabler of carriers' Service Level Agreements (SLAs) through its support for any Class of Service mechanism. Unlike other traditional protection mechanisms (such as MPLS FRR), the protection of multicast services over ERP does not require the allocation of spare bandwidth. Hence 100% of the ring capacity can be used for carrying protected multicast traffic.

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Format:PDFSize:1,341 KB
Date:Jan 2006
Pages:8

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