Cisco Cisco Prime Network Services Controller Adaptor for DFA Weißbuch

 

 

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Figure 5.    Two-Tier Clos Unified Fabric Example 

 

If the cabling for this network is an expansion to the existing cabling 10-Gbps infrastructure, the 192 40-Gbps 

connections can be built using MMF cables and QSFP SR4 transceivers or QSFP BiDi transceivers. Figures 6 and 

7 show design examples for these options. If the 192 10-Gbps cabling infrastructure is to be reused to construct 

this network, no additional spending on cabling will be needed, if Cisco QSFP BiDi Transceiver are used. Table 1 

compares these two scenarios with the estimated savings including the jumper cables. As the tables show, the 

design with Cisco QSFP BiDi Transceivers offers a savings of at least of 50 percent over the design with QSFP 

SR4 transceivers. 

Figure 6.    Structured 40-Gbps Cabling with Cisco QSFP SR4 Transceivers 

 

Figure 7.    Structured 40-Gbps Cabling with Cisco QSFP BiDi Transceivers