Installation Instructions

QSFP+ support
The VSP 4000 does not support 40 Gbps QSFP+ transceivers because the VSP 4000 devices do
not have any QSFP+ ports. However, the VSP 4000 Series supports the four SFP+ 10 Gigabit ends
of the breakout cable (BOC) assembly.
QSFP28 support
QSFP28 transceivers are currently supported on the VSP 8404C and VSP 8608 chassis models
only.
BOC support
The following sections detail additional support information on BOCs.
QSFP+ to 4xSFP+ 10 Gigabit BOC
The QSFP+ to 4xSFP+ 10 Gigabit BOC assembly directly connects one QSFP+ port to four SFP+
ports.
Note:
The VSP 4000 does not support 40 Gbps QSFP+ transceivers because the VSP 4000 devices
do not have any QSFP+ ports. However, the VSP 4000 Series supports the four SFP+ 10
Gigabit ends of the BOC assembly.
In the following figures, the total cable length for all BOCs spans from the nose of the QSFP+
connector to the nose of the SFP+ connector.
Active optical BOCs—The length from the nose of the QSFP+ connector to the optical splitter is
approximately 8 meters. The length of each optical pigtail is approximately 2 meters. The total cable
length is 10 meters.
Figure 1: Active optical BOC
Passive copper BOCs—The length from the nose of the QSFP+ connector to the fanout of the four
copper pigtails is 10.2 cm. The total cable length can be 1, 3, or 5 meters.
Supported transceiver, BOCs and DACs information
May 2018 Installing Transceivers and Optical Components on VOSS 17