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Chapter 2: Virtual Chassis Stacking
You can further improve the resiliency of trunks by distributing the
ports onto multiple cards in the switches. This makes it possible for
trunks to continue functioning, though at reduced bandwidths,
even if line cards with trunk ports fail. The example in Figure 18 is
a stack of three switches with a trunk of two links from switch-to-
switch, on different line cards.
Chassis 1
Chassis 2
Chassis 3
Figure 18. Example of a Stack Trunk of Ports on Multiple Line Cards
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