Mx2020 Switch Fabric Board Description; Sfb Slots; Sfb Redundancy; Sfb Components - Juniper MX2020 Hardware Manual

MX2020 3D Universal Edge Router Hardware Guide

MX2020 Switch Fabric Board Description

SFB Slots

SFB Redundancy

SFB Components

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The MX2020 Switch Fabric Board (SFB) straddles the two backplanes. It has connectors
connecting to both backplanes, (see

Figure 31: SFB

OK/FAI L
The user can install up to eight SFBs in the MX2020 router. The SFBs install vertically
into the front of the chassis in the slots labeled
must install a blank panel.
CAUTION: If one of the SFBs fails, do not remove the failed SFB until you
have a replacement or blank panel to install.
Seven of eight SFBs are required for line rate operation. The system can continue operating
with fewer than seven SFBs, but forwarding performance will be impacted.
Each SFB consists of the following components:
PCIe control of three XF ASICs
I2C bus logic interface, used for component management and monitoring of
temperature, and voltage
Figure 31 on page 64).
through . If any slots are empty, you
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