Replacing, Upgrading, Or Downgrading An M10I Cfeb Or Cfeb-E; Removing An M10I Cfeb Or Cfeb-E; Figure 34: Installing A Fan Tray - Juniper M10i Hardware Manual

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Replacing, Upgrading, or Downgrading an M10i CFEB or CFEB-E

Removing an M10i CFEB or CFEB-E

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Figure 34: Installing a Fan Tray

M10i Fan Tray Description on page 27
Troubleshooting the M10i Fan Tray on page 91
Maintaining the M10i Cooling System on page 80
One or two CFEBs or CFEB-Es can install into the uppermost slots in the rear of the
chassis, as shown in "M10i Chassis Description" on page 5. Only one CFEB or CFEB-E is
active at a time, with the optional second CFEB or CFEB-E in reset mode. CFEBs or
CFEB-Es are hot-pluggable when you replace a CFEB with a CFEB or a CFEB-E with a
CFEB-E, as described in "M10i Field-Replaceable Units (FRUs)" on page 99. Upgrading
or downgrading a CFEB device requires a system reboot, as described in "Upgrading or
Downgrading an M10i CFEB or CFEB-E" on page 106. Removing the standby CFEB or
CFEB-E has no effect on router function. If the active CFEB or CFEB-E fails or is removed
from the chassis, the effect depends on whether two CFEBs or CFEB-Es are installed:
If there is only one CFEB or CFEB-E, forwarding halts until the CFEB or CFEB-E is
replaced and functioning again.
If there are two CFEBs or CFEB-Es, forwarding halts until the standby CFEB or CFEB-E
boots and becomes active.
In both cases, all components in the Packet Forwarding Engine reset, and it takes
approximately 1 minute for the new CFEB or CFEB-E to become active; synchronizing
router configuration information can take additional time, depending on the complexity
of the configuration.
Removing an M10i CFEB or CFEB-E on page 103
Installing an M10i CFEB or CFEB-E on page 105
Upgrading or Downgrading an M10i CFEB or CFEB-E on page 106
To remove a CFEB or CFEB-E (see Figure 36 on page 105):
Chapter 15: Replacing M10i Hardware Components
103