Cisco 12416 Installation And Configuration Manual page 152

Chapter 3 Installing the Router
Connecting GRP Route Processor Cables
LEDs on the front panel indicate which Ethernet receptacle is active when the
GRP is operating.
See "GRP Ethernet Port Connections" section on page 2-29 for additional
information about GRP Ethernet ports.
Caution Ethernet ports are primarily used as a Telnet port into the Cisco 12000 series
router, and for booting or accessing Cisco IOS software images over a network to
which an Ethernet port is directly connected. Cisco Express Forwarding (CEF)
functions are switched off by default for security reasons. We strongly caution you
to consider the security implications of switching on CEF routing functions on
these ports.
Figure 3-19 GRP RJ-45 and MII Ethernet Connections
To repeater
or DTE
RJ-45 cable
To transceiver,
repeater, or DTE
MII cable
Cisco 12016, Cisco 12416, and Cisco 12816 Router Installation and Configuration Guide
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