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Chapter 2: Virtual Chassis Stacking
66
Trunks cannot have both base ports and XEM2 Line Card ports.
The unsupported trunk in Figure 31 consists of base 10Gbps ports
and ports on AT-XEM2-12XS Line Cards.
Figure 31. Unsupported Trunk with Both Base and XEM2 Line Card Ports
Trunks cannot have links that interconnect base ports and XEM2
Line Card ports. The example trunk in Figure 32 is unsupported
because base 10Gbps ports 1 and 2 in the top switch are
connected to ports 1 and 2 on the AT-XEM2-12XS Line Card in the
bottom switch.
Figure 32. Unsupported Trunk of Connected Base and Line Card Ports
In most cases, trunks should have a minimum of two links between
switches. The trunk in Figure 33 is not recommended because
there is only one link between switches. The exceptions to this are
stacks of three or four switches with trunks of base 100Gbps ports.
Refer to Figure 25 on page 62.
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