Qfx5110-32Q Port Panel; Switch Overview - Juniper QFX5110 Series Hardware Documentation

QFX5110-32Q Port Panel

IN THIS SECTION

Switch Overview | 18

Network Ports | 19
Channelizing Interfaces | 20
Virtual Chassis and Virtual Chassis Fabric | 21
The port panel of the QFX5110-32Q primarily comprises 28 quad small form-factor pluggable plus (QSFP+)
ports and 4 quad small form-factor pluggable solution (QSFP28) ports. The mixture of QSFP+ and QSFP28
ports allows for flexible configuration as either all 40-Gigabit Ethernet ports or a mixture of 40-Gigabit
Ethernet and 100-Gigabit Ethernet for high-speed uplinks. The port panel also provides a central location
for the Precision Time Protocol (PTP) connections to a grandmaster clock.
This topic describes:
Switch Overview
The ports on the QFX5110-32Q support 40-Gbps or 100-Gbps speeds natively. All ports autosense the
type of transceiver and set the port to the corresponding speed. The QSFP+ ports can support channelization
to four independent 10 GbE downstream ports, see
network ports can be configured as either uplink or as access ports, best practice is to configure the four
QSFP28 ports (28 through 31) as uplinks to take advantage of the 100-Gbps speeds.
The port panel also provides PTP connections to a grandmaster clock (requires Junos OS Release 18.1R1).
There are also 10-MHz pulses-per-second (PPS) SubMiniature B (SMB) input and output connections to
measure the timing drift to and from the grandmaster clock.
Figure 5 on page 19 shows the port panel of the QFX5110-32Q.
"Channelizing Interfaces" on page
18
20. Although all