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• On Gen 6 platforms, 16Gb/s QSFPs might negotiate the link speed to 8Gb/s when connecting a
breakout cable. To avoid this, disable, then re-enable the port that negotiated the speed to 8Gb/s or
connect the cable to the QSFP first, and then install the QSFP into the switch.
About this task
To insert an QSFP transceiver, complete the following steps:
Note: QSFP transceivers have pull tabs rather then bails. Always use the pull tab to insert or remove the
QSFP transceivers, as the QSFP might be hot.
Procedure
1. Use the pull tab on these transceivers to help push the transceiver into the port. Transceivers are
keyed so that they can only be inserted with the correct orientation. If a transceiver does not slide in
easily, ensure that it is correctly oriented. Push the correctly oriented transceiver into the port until it is
firmly seated and the latching mechanism clicks.
Figure 28. Installing a 32-Gbps QSFP transceiver in an upper port
1 - Pull tab
2 - QSFP cable
3 - QSFP transceiver
2. Position a cable so that the key (the ridge on one side of the cable connector) is aligned with the slot in
the transceiver. Insert the cable into the transceiver until the latching mechanism clicks.
Note: Cables are keyed so that they can be inserted in only one way. If a cable does not slide in easily,
ensure that it is correctly oriented. Do not insert any unsupported cable intended for an other type of
transceiver into a regular QSFP transceiver. You may damage the cable as well as the transceiver.
Replacing a QSFP transceiver
Before you begin
Consider the following when installing these transceivers:
• The device supports only IBM-qualified transceivers. If you use an unqualified transceiver, the
switchshow command output shows the port in a Mod_Inv state. Fabric OS also logs the issue in the
system error log.
• On Gen 6 platforms, 16Gb/s QSFPs might negotiate the link speed to 8Gb/s when connecting a
breakout cable. To avoid this, disable, then re-enable the port that negotiated the speed to 8Gb/s or
connect the cable to the QSFP first, and then install the QSFP into the switch.
About this task
Complete the following steps to remove and then install a new QSFP transceiver.
Chapter 5. Installing transceivers and cables 51
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