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Chapter 1: Overview
You can configure all the QSFP+ ports as uplinks.
Every second and sixth port in a 6XQSFP cage on a QFX10000-36Q 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
Figure 42 on page 81
for a closeup view of a 6XQSFP+ cage. When a
40-Gigabit Ethernet transceiver is inserted into a 100-Gigabit Ethernet port, the port
recognizes the 40-Gigabit Ethernet port speed. When a 100-Gigabit Ethernet transceiver
is inserted into the port and enabled in the CLI, the port recognizes the 100-Gigabit
Ethernet speed and disables two adjacent 40-Gigabit Ethernet ports. See
Figure 43 on page 81
and
Figure 44 on page
81. You can also use an 100-Gigabit Ethernet
transceiver and run it at 40-Gigabit Ethernet by using the CLI to set the port speed to
40-Gigabit Ethernet.
Figure 42 on page 81
shows the location of QSFP+ ports for the QFX10000-36Q.
Figure 42: All Ports Are Enabled for 40-Gigabit Ethernet by Default
Figure 43: 100-Gigabit Ethernet Ports
Figure 44: 100-Gigabit Ethernet Port Disables Two Associated 40-Gigabit Ethernet Ports
The 40-Gigabit Ethernet ports can operate independently, be channelized into four
10-Gigabit Ethernet ports, or bundled with the next two consecutive ports and channelized
into twelve 10-Gigabit Ethernet ports as a port range. Only the first and fourth port in
Copyright © 2019, Juniper Networks, Inc.
81
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