Juniper QFX3000-G QFabric, Deployment Manual, Page: 272 / 652

Figure 68: QFX3000-G QFabric System Fiber-Based Control
Plane—Inter-Virtual Chassis LAG Connections
VC0
VC1
xe-1/1/0
xe-2/1/0
xe-3/1/0
xe-0/1/0
xe-1/1/0
xe-2/1/0
xe-3/1/0
xe-0/1/0
xe-4/1/0
xe-5/1/0
xe-6/1/0
xe-7/1/0
xe-4/1/0
xe-5/1/0
xe-6/1/0
xe-7/1/0
Before you begin to interconnect two Virtual Chassis for QFX3000-G QFabric system
control plane redundancy:
• Install your QFabric system hardware (Director group, Interconnect devices, and Node
devices). See
“Installing and Connecting a QFX3100 Director Device” on page 143 ,
“Installing and Connecting a QFX3008-I Interconnect Device” on page 155 “Installing
and Connecting a QFX3600 or QFX3600-I Device” on page 193
, and “Installing and
Connecting a QFX3500 Device” on page 211 .
• Install your Virtual Chassis hardware (EX4200 switches). See Installing and Connecting
an EX4200 Switch .
•
Create two Virtual Chassis of eight members each. See Configuring an EX4200, EX4500,
or EX4550 Virtual Chassis (CLI Procedure) .
• Ensure that you have installed a 10-Gigabit Ethernet SFP+ transceivers in port 0 on
each Virtual Chassis member uplink module (see Installing a Transceiver in an EX Series
Switch ). EX4200 uplink modules only support SFP+ transceivers installed in ports
0
and
2
. For a list of supported transceivers, see Pluggable Transceivers Supported on
EX4200 Switches .
Instead of using optical transceivers, you can use 10-Gigabit Ethernet SFP+ direct-attach
(DAC) cables. For a list of supported DAC cables, see
SFP+ Direct Attach Cables for EX
Series Switches . The procedure below assumes you are using optical transceivers, but
the port mappings in Table 70 on page 247 also apply to DAC cables.
•
Ensure that you have appropriate fiber-optic cables (see Pluggable Transceivers
Supported on EX4200 Switches ).
• Ensure that you have taken the necessary precautions for safe handling of lasers (see
Laser and LED Safety Guidelines and Warnings for EX Series Switches ).
•
Use Table 70 on page 247 to determine the fiber-based control plane Virtual
Chassis-to-Virtual Chassis port mappings. Specific ports have been reserved on the
Copyright © 2015, Juniper Networks, Inc. 246
QFX3000-G QFabric System Deployment Guide