Multi-Gigabit Copper Ports; Figure 18: Chain Stack Trunk Of Sfp+ Ports S1 And S2; Figure 19: Stack Trunks Of Multi-Gigabit Copper Ports For Two Switches - Allied Telesis x330 Series Installation Manual

x330 Series Installation Guide for Virtual Chassis Stacking
In the previous figures, the top and bottom switches are connected to form
a loop topology in the trunk. This adds redundancy to the trunk by allowing
the switches to maintain the stack even if a trunk link should fail.
The switches support the linear or chain configuration for the trunk, where
the top and bottom switches are not linked together. Refer to Figure 18 for
an example. Allied Telesis does not recommend this configuration
because it does not provide redundancy should a trunk link fail.
Figure 18. Chain Stack Trunk of SFP+ Ports S1 and S2
Multi-Gigabit
Figure 19 to Figure 21 on page 48 illustrate trunks of the two Multi-Gigabit
copper ports. As with the SFP+ ports S1 and S2, the cables can crossover
Copper Ports
to different ports on the switches or connect the same ports. The
illustrations show the x330-28GTX Switch. The same rules apply to the
x330-20GTX Switch.
Crossover
Straight-through
Figure 19. Stack Trunks of Multi-Gigabit Copper Ports for Two Switches
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