X7-4-Install-IG100 Installation Guide
Brocade
®
X7-4 Director Hardware Installation Guide
QSFP ports are numbered from 0 through 3 along the top row from right to left and 4 through 7 along the bottom row from
right to left. For information on supported QSFP transceivers, see
Supported Transceivers and Cables
Each numbered QSFP port on the blade provides four Gen 7 ICL FC ports. 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 31: External Port to slotShow Command Port Mapping for Core Blades
External Port Number
slotShow
FC Port Numbers
0
0-3
1
4-7
2
8-11
3
12-15
4
16-19
5
20-23
6
24-27
7
28-31
ICL Trunking Groups
Multiple directors can be connected through inter-chassis links (ICLs) between the Gen 7 ICL or 4x32Gb/s QSFPs
installed on core routing blades. Each QSFP connection between two devices provides 128Gb/s bandwidth. Trunking
optimizes the use of ICL bandwidth by allowing a group of links to merge into a single logical link, called a trunk. Traffic
is distributed dynamically and in order over this trunk, achieving greater performance with fewer links. Within the trunk,
multiple physical ports appear as a single port, thus simplifying management. Trunking also improves system reliability by
avoiding I/O retries if one link within the trunk fails.
Since each port within a QSFP terminates on a different ASIC within each core blade, an ICL trunk cannot be formed
using the individual FC ports within the same QSFP. A trunk must be formed from individual FC ports in different QSFP
ports, which must reside in the same trunk group. To form an ICL trunk between two devices, a minimum of two QSFPs
within a port trunk group on a core blade installed in one device must be connected to a pair of QSFPs within a trunk
group on a core blade in another device.
Each CR64-4 blade on the X7-4 Director has two ICL trunking groups consisting of the following QSFP ports:
•
0, 1, 5, and 4
•
2, 3, 6, and 7
Ports belonging to the same trunking groups are indicated with the same color border under the ports on the blade
faceplate. These colors are also applied to the port map labels on each blade faceplate to indicate ports belonging to the
same trunking groups.
For more information on ICLs and configuring ICL trunking between core routing blades on different directors, refer to
"Inter-Chassis Links" in the
Brocade Fabric OS Administration Guide
.
NOTE
You cannot configure ISLs using ports on port blades and QSFP-based ICLs using ports on core routing blades
concurrently on the same chassis. ISLs and ICLs can co-exist between a pair of chassis if the ISLs and ICLs are
in different logical switches.
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Broadcom
Summary of Contents for Brocade X7-4 Director
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