Juniper QFX10002 Hardware Manual page 24

• 40-Gigabit Ethernet QSFP+ to 10-Gigabit Ethernet SFP+ DACBO cables
• 10-Gigabit Ethernet SFP+ transceivers
• 10-Gigabit Ethernet DAC cables
100-Gbps Operation and Configuration
Every second and sixth port in a 6XQSFP cage on a QFX10002 supports 100-Gigabit Ethernet using
QSFP28 transceivers. These 100-Gigabit Ethernet ports work either as 100-Gigabit Ethernet or as 40-
Gigabit Ethernet, but are recognized as 40-Gigabit Ethernet by default. See
close up view of a 6XQSFP+ cage. The 100-Gigabit Ethernet are designated by a fine black line
underneath the port. See
a 100-Gigabit Ethernet port, the port recognizes the 40-Gigabit Ethernet port speed. However, when an
100-Gigabit Ethernet transceiver is inserted into the port, the transceiver is not automatically
recognized and is not seen in the output of the show chassis hardware command. To enable 100-Gigabit
Ethernet on the marked ports, use the set chassis fpc command. For example, to enable port 11 for 100
Gbps speeds:
[edit]
user@switch#
set chassis fpc 0 pic 0 port 11 speed 100g
The port then recognizes the 100-Gigabit Ethernet speed and disables two adjacent 40-Gigabit Ethernet
ports. See Figure 9 on page
Figure 7 on page 15 shows one of the six 6XQSFP+ cages on a QFX10002-36Q.
Figure 7: All Ports are 40-Gigabit Ethernet by Default
Figure 8 on page 16. When a 40-Gigabit Ethernet transceiver is inserted into
16.
Figure 7 on page 15 for a
15