Juniper QFX5110 - Channelizing Interfaces; Virtual Chassis and Virtual Chassis Fabric

The QFX5110-48S device ports (0 to 47) support:
•
10-Gbps SFP+ transceivers
•
1-Gbps SFP transceivers
•
SFP+ direct attach copper (DAC) cables
•
SFP+ active optical cables (AOC)
The QFX5110-48S uplink ports (48 to 51) support:
•
100-Gbps QSFP28 transceivers
•
40-Gbps QSFP+ transceivers
•
100-Gbps AOC
•
40-Gbps AOC
•
100-Gbps QSFP28 DAC cables
•
40-Gbps QSFP+ DAC cables
•
40-Gbps QSFP+ to SFP+ DACBO cables (40-Gbps breaks out to 10-Gbps for copper
connections)
•
40-Gbps AOCBO cables (40-Gbps breaks out to 10-Gbps for fiber connections)
Channelizing Interfaces
For downstream traffic, the QFX5110-48S has 4 physical or 16 logical ports that can be
used for port channelization. The default 100-Gigabit Ethernet ports can be configured
as 40-Gigabit Ethernet, and in this configuration can either operate as dedicated
40-Gigabit Ethernet ports or can be channelized to 4 independent 10-Gigabit Ethernet
ports using copper or fiber breakout cables.
To channelize the ports, manually configure the port speed using the set chassis fpc
slot-number port port-number channel-speed speed command, where the speed can be
set to 10-Gigabit Ethernet, 40-Gigabit Ethernet, or 100-Gigabit Ethernet. The ports do
not support auto-channelization.
Virtual Chassis and Virtual Chassis Fabric
To connect QFX5110 switches as members in a QFX5110 Virtual Chassis, you need a pair
of dedicated ports on each switch and cables that link each member in the Virtual Chassis
into a ring topology. Each member in the ring has at least one direct Virtual Chassis port
(VCP) connection to a upstream and downstream member. QFX5110 switches are
recommended in the master, backup, or line card role. You may only mix QFX5100
members with QFX5110 members in a QFX5110 Virtual Chassis; no other QFX Series or
EX Series switches are supported. See “Connecting QFX5110 and QFX5100 Members in
a QFX5110 Virtual Chassis” on page 95 for a a diagram of cabling QFX5110 switches in a
ring topology.
To connect a QFX5110 switch as a spine or leaf device in a Virtual Chassis Fabric (VCF),
you need a pair of dedicated ports and cables that link each spine device and leaf device
11Copyright © 2017, Juniper Networks, Inc.
Chapter 2: Chassis Components and Descriptions