this section describes the recommended cabling configurations for stacking the switches.
stacking switches in vertical racks or on a table
figure 3-6 is an example of a recommended configuration using the supplied 0.5-meter stackwise cable. in this example, the switches are stacked in a vertical rack or on a table. this configuration provides redundant connections.

the configuration examples in figure 3-7 use the 3-meter stackwise cable in addition to the supplied 0.5-meter stackwise cable. this configuration also provides redundant connections.
figure 3-7 stacking the catalyst 3750 switches in a vertical rack or on a table using 0.5-meter and 3-meter stackwise cables

side-by-side mounting in a rack or on a wall
figure 3-8 and figure 3-9 are examples of recommended configurations where the switches are rack- or wall-mounted side-by-side. use the 1-meter and 3-meter stackwise cables to connect the switches. these configuration provide redundant connections.