Juniper QFX5100, Руководство по оборудованию

Страница: 92 / 256

CAUTION: We highly recommend using Juniper Network DAC cables. You
can use DAC cables purchased from a third party at your own risk. If there is
a problem with the cable or transceiver, support will not be provided. If you
choose to use a third-party cable, it should meet the specifications described
in
Table 26 on page 75 and Table 27 on page 77 .
Table 25 on page 74 describes the Junos OS software releases that supports third-party
DAC cables. Prior releases only permitted Juniper Networks DAC cables.
Table 25: Third-Party SFP+ DAC Cable Support
Third-Party DAC Cable Support Added Platform
Junos OS 11.3X30.6 QFX3500 Node device in a QFabric system
Junos OS 11.3R4 QFX3500 device as a standalone switch
Junos OS 13.2X51-D10 QFX5100 device as a standalone switch
NOTE: This topic does not describe which devices support these transceivers.
For information about which transceivers are supported on QFX Series devices,
see the following topics:
•
Interface Support for the QFX3600 Device
• Interface Support for the QFX3500 Device
• Interface Support for the QFX5100 Switch on page 57
The cables are hot-removable and hot-insertable. A cable consists of a cable assembly
that connects directly into two SFP+ modules, one at each end of the cable. The cables
use integrated duplex serial data links for bidirectional communication and are designed
for data rates up to 10 Gbps. There are two types of DAC cables:
• Passive DAC cables have no signal amplification built into the cable assembly.
Table 26 on page 75 describes the passive DAC cable specifications.
•
Active DAC cables have signal amplification and equalization built into the cable
assembly.
Table 27 on page 77 describes the active DAC cable specifications.
Copyright © 2014, Juniper Networks, Inc. 74
QFX5100 Switch Hardware Guide