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41Continuous Access and Data Replication Manager SAN Extensions Reference Guide

Fibre Channel Over SONET

(FC-SONET)

Local SANs can be connected with Synchronous Optical Network (SONET) to

create an extended SAN. An FC-SONET gateway is used at each end of an

intersite link. Each FC-SONET gateway box encapsulates received Fibre Channel

frames into SONET packets for transmission over the network. Similarly, each

FC-SONET box extracts the original FC frames from received SONET packets

and retransmits them to the destination Fibre Channel node. The FC-SONET

boxes also handle SONET-level error recovery. Figure 9 shows a fully redundant

SONET configuration using HP StorageWorks Continuous Access EVA.

Topics in this chapter include:

■ Dual links‚ page 43

■ Shared SONET link for dual ISLs‚ page 44

■ Considerations relevant to using the existing SONET network‚ page 44

■ Network speeds‚ page 44

■ Performance in a WAN environment‚ page 45

■ Certified vendor products for SONET gateway devices‚ page 45

■ Continuous Access EVA with VCS V3.01 support‚ page 46

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Riverstone Networks RS 2100 Spezifikationen Seite 41