Deployment Guide

Refer to the specific hardware reference manuals for information about port numbering and connecting
the ICL cables.
ICLs for the Brocade DCX Backbone family
The Brocade DCX has two ICL connectors at ports ICL0 and ICL1 on each core blade, each
aggregating a set of 16 ports. Thus, each core blade provides 32 ICL ports and there are 64 ICL ports
available for the entire Brocade DCX chassis. All the ICL connector ports must be connected to the
same two Brocade DCX or DCX-4S chassis.
The Brocade DCX-4S has two ICL connector ports at ICL0 and ICL1, each aggregating a set of 8
ports. Thus, each core blade provides 16 ICL ports and there are 32 ICL ports available for the entire
Brocade DCX-4S chassis. All the ICL connector ports must be connected to the same two Brocade
DCX or DCX-4S chassis.
Only the following cross-ICL group connections are allowed, as illustrated in Figure 71 :
• ICL0 ports on the first chassis connect to ICL1 ports on the second chassis.
• ICL1 ports on the first chassis connect to ICL0 ports on the second chassis.
FIGURE 71
DCX-4S allowed ICL connections
The following ICL connections are not allowed:
• ICL0 ports to ICL0 ports
• ICL1 ports to ICL1 ports
ICLs for the Brocade DCX Backbone family
486 Fabric OS Administrators Guide
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