Juniper MX10008, Hardware Manual

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MX10008 Cooling System and Airflow | 45
Field-Replaceable Units in an MX10008
Field-replaceable units (FRUs) are router components that you can replace at your site. Routers use these
types of FRUs:
•
Hot-insertable and hot-removable—You can remove and replace these components without powering
off the router or disrupting the routing function.
•
Hot-pluggable—You can remove and replace these components without powering off the router, but
the routing function is interrupted until you replace the component.
Table 7 on page 38 lists the FRUs and their types for the MX10008 routers.
Table 7: FRUs in an MX10008 Router
Type FRU
Hot-insertable and hot-removable. Power supplies
Hot-insertable and hot-removable. Fan trays
Hot-insertable and hot-removable. Fan tray controllers
Redundant configuration:
•
Master RCB is hot-pluggable.
•
Backup RCB is hot-insertable and hot-removable.
Base configuration:
•
Removal of the RCB causes the router to shut down. You can install a
replacement RCB in the second slot. The system restarts to select a master and
backup. If necessary, you can switch the master and backup using the request
chassis routing-engine master switch command.
See “MX10008 Components and Configurations” on page 31 .
Routing and Control Board (RCB)
Hot-insertable and hot-removable.
We recommend that you take the SFBs offline before removing them to avoid
traffic loss while the router fabric is being reconfigured. You can take SFBs offline
by using the request chassis sib (offline | online) slot slot-number command.
Switch Fabric Boards (SFBs)
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