Installation Instructions

Important:
• The VSP switches allow the use of QSFP+ transceivers from any vendor. Extreme
Networks does not provide support for operational issues related to QSFP+ transceivers
that are not listed in this document as supported transceivers. The switch logs the device
as an unsupported or unknown device.
• The VSP switches operate in forgiving mode for QSFP+ direct attach cables (DAC) when
using third party DACs. Extreme Networks does not provide support for operational issues
related to these DACs, but they will operate and the port link will come up.
Note:
Although VSP 8000 Series and VSP 7200 Series support 10 Gigabit and 40 Gigabit
DAC cables in forgiving mode, in releases earlier than VOSS 4.2.1, the command
output for show pluggable-optical-modules basic displays the corresponding
vendor name rather than leaving the vendor name field blank.
• Extreme Networks recommends using the QSFP+ transceivers documented in this
document as they have been through extensive qualification and testing. Extreme
Networks is not responsible for issues related to third party QSFP+ transceivers.
QSFP+ transceiver labels
A label can be located on either the top or bottom of the typical QSFP+ transceiver. The following
figure shows an example label.
Sometimes alternate labels can be used depending on the size of the device and space available for
label information.
Figure 7: 40GBASE–SR4 QSFP+ transceiver label example
The following table identifies the numbered items in the preceding figure.
Table 19: Figure notes for a 40GBASE–SR4 QSFP+ transceiver label
1. Optical safety certification logos
QSFP+
May 2018 Installing Transceivers and Optical Components on VOSS 54