53-1002177-19 Hardware Installation Guide
Brocade DCX 8510-4 Backbone Hardware Installation Guide
Figure 29: QSFP to QSFP standard cables
1. QSFP MTP connector
Figure 30: QSFP-SFP/LC Break-out/Split-out cables
1. QSFP MTP connector
2. SFP+ LC connectors
With the support for breakout cables, each port can be in a different mode. Inside the single physical QSFP port, individual
ports can be configured as an E_Port, F_Port or EX_Port. Also, each internal port inside a single physical QSFP can be
part of different Logical Switches.
With the support for breakout cables, trunking can be enabled on ports in a QSFP port group, with ports connected
through breakout cables at the other end.
Installing inter-chassis links (ICLs)
Follow these guidelines when installing ICLs using fiber optic cables and transceivers. Refer to the Brocade Fabric OS
Administration Guide for the configuration procedure and requirements. Refer to "Removing and replacing a QSFP and
cable" in this hardware installation guide to install cables and transceivers.
•
The QSFP ports on the core switch blades can be used only with an inter-chassis link (ICL) license. After the
addition or removal of a license, the license enforcement is performed on the ports only when the portdisable and
portenable commands are issued on the ports. An ICL license must be installed on all Brocade Backbones forming
the ICL connection. Up to nine neighboring Brocade DCX 8510 series chassis can be connected with the MTP cables.
•
An off-the-shelf MTP cable up to 100 meters can be used as an ICL cable when using the standard SWL optics. The
Brocade 2 km QSFP with LWL optics has an integrated 3 meter single-mode pigtail with a male MTP connector for
connectivity to a patch panel or female terminated MTP patch cable to achieve up to 2 km distances. Refer to Using
Brocade 2 km LWL QSFPs for more information.
•
Brocade supports fully populating a switch with ICL connections using a mixture of 50 and 100 meter SWL optics and 2
km LWL optics.
•
Following are examples of maximum ICL port connections in a DCX 8510 when using 2 km LWL QSFPs. Note that
limits are based on the number of buffers. If using ICLs for shorter distances, more ICL ports can be connected. There
are no limitations on number of ICL ports if all ICL distances are a few hundred meters.
–
Up to 10 ICL ports can be used for 2 km distances when 16 buffer credits are configured per virtual channel.
–
Up to 16 ICL ports can be used for 1,375 meter distances when 11 buffer credits are configured per virtual channel.
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