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Building Multiservice Transport Networks: MSPP Network Design Example: Cisco ONS 15454

  • Sample Chapter is provided courtesy of Cisco Press.
  • Date: Oct 13, 2006.

Contents

  1. ONS 15454 Shelf Assembly
  2. EIAs
  3. Timing, Communications, and Control Cards
  4. Cross-Connect CardsTiming, Communications, and Control Cards
  5. Alarm Interface Controller Card
  6. SONET/SDH Optical Interface Cards
  7. Ethernet Interface Cards
  8. Electrical Interface Cards
  9. Storage Networking Cards
  10. MSPP Network Design Case Study
  11. Summary

Chapter Description

The Cisco ONS 15454 is a highly flexible and highly scalable multiservice Synchronous Optical Network (SONET)/Synchronous Digital Hierarchy (SDH)/dense wavelength-division multiplexing (DWDM) platform. Service providers and enterprise customers use the ONS 15454 to build highly available transport networks for time-division multiplexing (TDM), Ethernet, storage extension, and wavelength services. In this chapter, you will learn the major components of the ONS 15454 system.

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Building Multiservice Transport Networks

Building Multiservice Transport Networks

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Storage Networking Cards

The SL-Series Fibre Channel(FC)/FICON (Fiber Connection) interface card for the ONS 15454 MSPP, also referred to as the FC_MR-4 card, is a four-port card used to provide storage-area networking (SAN) extension services over a SONET/SDH ring. This card can be installed in Slots 5, 6, 12, or 13 in a shelf equipped with XCVT cross-connect cards, or in any slot in a shelf equipped with XC10G or XC-VXC-10G cross-connect cards. Each of the four client ports can be independently equipped with 1-Gbps single-rate or 1-Gbps/2-Gbps dual-rate GBICs. Each port can support 1.0625 Gbps or 2.125 Gbps of FC/FICON connections. A maximum bandwidth of STS-48 is supported per card.

The SL-Series card supports both contiguously concatenated (CCAT) and virtually concatenated (VCAT) SONET/SDH circuits, as follows:

1 Gbps FC/FICON can be mapped into this:

  • STS-1, STS-3c, STS-6c, STS-9c, STS-12c, STS-18c, STS-24c, and STS-48c (minimum SONET CCAT size for line-rate service is STS-24c)
  • VC4-1c, VC4-2c, VC4-3c, VC4-4c, VC4-6c, VC4-8c, and VC4-16c (minimum SDH CCAT size for line-rate service is VC4-8c)
  • STS-1-nv, where n=1 to 24 (n = 19 for line-rate service)
  • STS-3c-nv, where n=1 to 8 (n = 6 for line-rate service)
  • VC4-nv, where n=1 to 8 (n = 6 for line-rate service)

2-Gbps FC/FICON can be mapped into:

  • STS-1, STS-3c, STS-6c, STS-9c, STS-12c, STS-18c, STS-24c, and STS-48c (minimum SONET CCAT size for line-rate service is STS-48c)
  • VC4-1c, VC4-2c, VC4-3c, VC4-4c, VC4-6c, VC4-8c, VC4-12c, and VC4-16c (minimum SDH CCAT size for line-rate service is VC4-16c)
  • STS-1-nv, where n = 1 to 48 (n = 37 for line-rate service)
  • STS-3c-nv, where n = 1 to 16 (n = 12 for line-rate service)
  • VC4-nv, where n = 1 to 16 (n = 12 for line-rate service)

The SL-Series cards also support advanced SAN distance extension features, including the use of buffer-to-buffer (B2B) credits, which are supported by the connected FC switching devices, to overcome distance limitations in 1-Gbps and 2-Gbps line-rate SAN extension applications. Additionally, distance extensions functions enabled by Receiver Ready (R_RDY) spoofing enables the SL Series to serve as an integrated FC extension device, reducing the need for external equipment.

10. MSPP Network Design Case Study | Next Section Previous Section

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