Juniper PTX1000 Hardware Manual page 24

The PTX1000 supports 10-Gbps, 40-Gbps, and 100-Gbps port speeds.
PTX1000 port panel and management panel.
Figure 4: PTX1000 Port Panel and Management Panel
1 Port panel
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Each of the 72 network ports on the port panel supports quad small form-factor pluggable plus (QSFP+)
transceivers. By default, the network ports operate as channelized 4 x 10-Gigabit Ethernet interfaces—using
QSFP+ to SFP+ fiber breakout cables—for a maximum of 288 10-Gigabit Ethernet ports. You can configure
each of the 72 ports as a 40-Gigabit Ethernet interface, in groups of three ports—when you configure the
first port in a port group to operate at 40 Gbps, that port and the next two ports operate at 40 Gbps. You
can also configure 24 of the 72 network ports as 100-Gigabit Ethernet interfaces. The 24 network ports
that can be configured as 100-Gigabit Ethernet interfaces support QSFP28 transceivers.
NOTE: Network ports that can be configured as 100-Gigabit Ethernet interfaces are marked
with a fine black line underneath the transceiver socket. When the port is configured as a
100-Gigabit Ethernet interface, the two adjacent ports are disabled. For example, port 1 supports
100-Gbps port speed. When you configure the port as a 100-Gigabit Ethernet interface, port 0
and port 2 are disabled.
NOTE: Port speeds are configured using the set chassis fpc 0 pic 0 port port-number speed
speed command. You configure ports to operate at 40 Gbps by using the 40g speed option. You
configure ports to operate at 100 Gbps by using the 100g speed option. If you configure a port
to operate at 40 Gbps or 100 Gbps, and you want to return the port to the default configuration,
delete the speed statement from the configuration at the [chassis fpc 0 pic 0 port port-number]
hierarchy level and commit the configuration. The network port is reset to the default 4 x
10-Gigabit Ethernet interface.
network ports on the PTX1000.
2 Management panel
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Table 6 on page 27 shows the available combinations for the
Figure 4 on page 24 shows the
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