Brocade Communications Systems DCX 8510-4 Service Manual download pdf (Page 15)

Brocade DCX 8510-4 Backbone QuickStart Guide 15 of 24

Publication Number: 53-1002178-01

The figure below shows an QSFP cable and transceiver. The QSFP connectors on the core blades are labeled by

trunk group (trunking is optional) for ease of installation. The subsequent figures shows acceptable cabling

configurations for the ICL feature. The recommended topology is the parallel type where there are four QSFP cables

connected between any pair of Brocade 8510 series chassis.The full mesh configuration is also supported.

FIGURE 6 QSFP cable and transceiver

Installing a QSFP cable

Complete the following steps to replace a QSFP cable.

1. If the QSFP transceiver is being replaced, grasp the bail of the new QSFP and push the QSFP into the connector

on the blade until it is firmly seated. The QSFP is keyed to fit into the connector in one way. The status LED

initially blinks amber after installation, then displays steady amber.

2. Grasp the QSFP cable by the rubber housing and push it into the QSFP transceiver until it is firmly seated. The

cable housing is keyed to fit into the QSFP in one way.

The status LED displays steady amber until both ends of the cable are inserted and the link is established.

When the link is fully established, the LED displays steady green.

3. Repeat for each cable that requires replacement.

4. Once all the cables are attached, see the Fabric OS Administrator’s Guide for the configuration procedure.

Possible QSFP cable configurations

The following figure illustrates one possible QSFP cable configuration between two 8510 series chassis. Up to five

neighboring 8510 chassis can be connected as long as each of two cores in one chassis is interconnected with each

of two cores in the next chassis. This provides for inter-chassis link (ICL) trunking between chassis, ensuring

redundancy. Parallel connections between core blades are recommended, but both parallel and mesh cable

arrangements are supported.

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Brocade Communications Systems DCX 8510-4 Service Manual Page 15