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A trunk cannot have ports from different line card models. The
trunk for the three switches in Figure 22 is unsupported because it
has ports from XEM2-4QS and XEM2-12XT Line Cards.
Figure 22. Unsupported Trunk with Different Ethernet Line Card Models
The XEM2-12XS Line Card supports both 1Gbps SFP and 10Gbps
SFP+ transceivers. However, trunk links require 10Gbps SFP+
transceivers. Trunks are not supported with 1Gbps SFP
transceivers.
SBx908 GEN2 Installation Guide for Virtual Chassis Stacking
Chassis 1
Chassis 2
Chassis 3
61
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