Reference Guide

The Brocade DCX 8510-8 has four port groups on the CR16-8 core blade. The Brocade DCX 8510-4 has two port groups on the
CR16-4 core blade. Each port group has four QSFP connectors, and each QSFP connector maps to four user ports. Refer to the
hardware reference manuals for details about the port groups.
The following table shows the mappings from the numbered QSFP ports on the face of the core blade to the individual FC port
numbers as shown by the slotShow command.
TABLE 87 External port to slotShow port mapping for core blades
External port number slotShow FC port numbers External port number slotShow FC port numbers
0 0-3 8 32-35
1 4-7 9 36-39
2 8-11 10 40-43
3 12-15 11 44-47
4 16-19 12 48-51
5 20-23 13 52-55
6 24-27 14 56-59
7 28-31 15 60-63
Following are ICL configuration guidelines for trunking bandwidth and High Availability:
∙ ICLs must be installed in groups of two. Each pair of ICLs must be in the same port group.
∙ The recommended minimum number of ICLs between two Brocade DCX 8510 chassis is four. Additional ICLs should be
added in increments of two, one on each core blade.
∙ For High Availability, you should have at least two ICLs from each core blade. Figure 66 shows two Brocade DCX 8510-8
chassis connected with full redundancy using four ICL connections.
FIGURE 66 Minimum configuration for 64 Gbps ICLs
Inter-chassis Links
Brocade Fabric OS Administration Guide, 8.0.1
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