Cisco WS-C3560X-48PF-L Hardware Installation Guide - Page 41
Data Stack Bandwidth and Partitioning Examples
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Chapter 2 Switch Installation Data Stack Cabling Configurations Figure 2-3 shows a recommended configuration when the switches are mounted side-by-side. Use the 1-meter and the 3-meter StackWise cables to connect the switches. This configuration provides redundant connections. Figure 2-3 Data Stacking up to Eight Switches in a Side-by-Side Mounting 86825 Data Stack Bandwidth and Partitioning Examples This section provides examples of data stack bandwidth and possible data stack partitioning. Figure 2-4 shows a data stack of Catalyst 3750-X switches that provides full bandwidth and redundant StackWise cable connections. Figure 2-4 Example of a Data Stack with Full Bandwidth Connections STACK 1 1 STACK 1 STACK 2 STACK 2 2 STACK 1 3 STACK 2 253202 Figure 2-5 shows an example of a stack of Catalyst 3750-X switches with incomplete StackWise cabling connections. This stack provides only half bandwidth and does not have redundant connections. Figure 2-5 Example of a Data Stack with Half Bandwidth Connections 253203 STACK 1 1 STACK 1 STACK 2 STACK 2 STACK 1 STACK 2 2 Figure 2-6 and Figure 2-7 show data stacks of Catalyst 3750-X switches with failover conditions. In Figure 2-6, the StackWise cable is bad in link 2. Therefore, this stack provides only half bandwidth and does not have redundant connections. In Figure 2-7, link 2 is bad. Therefore, this stack partitions into two stacks, and the top and bottom switches become stack masters. Figure 2-6 Example of a Data Stack with a Failover Condition STACK 1 1 STACK 1 STACK 1 3 STACK 2 STACK 2 STACK 2 2 253204 OL-19593-02 Catalyst 3750-X and 3560-X Switch Hardware Installation Guide 2-7
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