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Removing a Transceiver from a J-EX Series Switch on page 168
Routing Engine (RE) Module in a J-EX8216 Switch
The Routing Engine (RE) module performs system control, system management, FRU
configuration, and FRU management functions in a J-EX8216 switch. An RE module
contains a Routing Engine. See Figure 10 on page 26.
A redundant J-EX8216 switch has two RE modules for Routing Engine and system control
redundancy. See “Understanding J-EX8216 Switch Component and Functionality
Redundancy” on page 12.
The RE modules install horizontally into the top front of the chassis in slots labeled RE0
and RE1.
Figure 10: RE Module in a J-EX8216 Switch
NOTE:
We recommend that you install two RE modules for redundancy. If
you install only one RE module, we recommend that you install it in slot RE0.
See “Slot Numbering for a J-EX8216 Switch” on page 14.
When two RE modules are installed, one RE module functions as the master and the
other acts as the backup. If the master RE module fails or is removed, the backup module
takes over as the master RE module. When the RE modules are configured for graceful
switchover, the backup RE module automatically synchronizes its configuration and state
with those of the master RE module. Any update to the master RE module is replicated
on the backup RE module. If the backup module assumes mastership, packet forwarding
continues through the switch.
We recommend, however, that you always take an RE module offline before removing
it. If only one RE module is installed, we recommend that you disable the switch by halting
the RE module (thus taking it offline) before removing the RE module. See “Taking the
RE Module Offline in a J-EX8216 Switch” on page 161.
The RE module provides these functions:
26
Dell PowerConnect J-Series J-EX8216 Ethernet Switch Hardware Guide
Содержание PowerConnect J-8216
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