Technical Documentation

M7I Field-Replaceable Units (FRUs)

Field-replaceable units (FRUs) are router components that can be replaced at the customer site. Replacing most FRUs requires minimal router downtime. The router uses the following types of FRUs:

  • Hot-removable and hot-insertable FRUs—You can remove and replace these components without powering down the router or disrupting the routing functions.
  • Hot-pluggable FRUs—You can remove and replace these components without powering down the router, but the routing functions of the system are interrupted when the component is removed.

Table 1 lists the FRUs for the M7i router.

Table 1: Field-Replaceable Units

Hot-Removable and Hot-Insertable FRUs

Hot-Pluggable FRUs

  • Fan tray
  • Physical Interface Card (PIC)
  • Power supply
  • Compact Forwarding Engine Board (CFEB) (when swapping for an existing CFEB)
  • Enhanced Compact Forwarding Engine Board (CFEB-E) (when swapping for an existing CFEB-E)
  • Routing Engine

Published: 2010-08-13

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