Cisco PRP-2 Installation And Configuration Manual page 44

Configuring Interfaces on the PRP
Ethernet Interface Cable Connection Procedure
The RJ-45 receptacles on the PRP-1 provide two physical connection options for Ethernet interfaces and
three physical connections on the PRP-2. RJ-45 cables are not available from Cisco Systems; they are
available from commercial cable vendors. To connect cables to the PRP Ethernet interfaces (ports
labeled ETH0, ETH1 and ETH2; see
receptacle on the PRP.
The Ethernet interfaces on the PRP are end-station devices, not repeaters; therefore, you must connect
an Ethernet interface to a repeater or hub.
Note Only connect cables that comply with EIA/TIA-568 standards. (See
recommendations and specifications.)
The Ethernet ports are used primarily as Telnet ports into the Cisco XR 12000 Series Router and for
Caution
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 14
Network 2.0.0.0 via the Ethernet port (ETH0) on the PRP in Router A; you can only access the hosts and
Router C, which are in Network 1.0.0.0. (See dotted arrows in
To access Network 2.0.0.0 from Router A, you must use an interface port on one of your line cards (in
this example, a Packet-over-SONET [POS] line card in Router A) to go through Router B, through
Router C, and into Network 2.0.0.0. (See solid arrows in
Figure 14
(Cisco 12000 series)
(Cisco 7500 series)
44
shows an example of the functionality of an Ethernet port. In this example, you cannot access
Using the Ethernet Port on the PRP
Network 1.0.0.0
Router A
EO
POS
EO
Router B
Figure 9), attach the Category 5 UTP cable directly to an RJ-45
Host A
Host B
Network 2.0.0.0
Router C
(Cisco 7500 series)
Table 11 and Table 12
Figure 14.)
Figure 14.)
Host A
for cable
OL-17436-01