Prp ethernet connections – Cisco XR 12406 User Manual

Page 111

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3-23

Cisco XR 12406 Router Installation Guide

OL-13831-01

Chapter 3 Installing the Cisco XR 12406 Router

Connecting the PRP to an Ethernet Network

Figure 3-14

shows an example of the functionality of an Ethernet port. In this

example, you cannot access Network 2.0.0.0 through 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

Figure 3-14

).

To access Network 2.0.0.0 from Router A, use an interface port on one of the 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 3-14

).

Figure 3-14

Using the Ethernet Port on the PRP

PRP Ethernet Connections

Figure 3-15

shows a PRP RJ-45 receptacle and cable connector. The RJ-45

connection does not require an external transceiver. The RJ-45 connection
requires Category 5 unshielded twisted-pair (UTP) cables, which are not available
from Cisco Systems, but are available from commercial cable vendors.

Table 3-3

lists the signal-to-pin correspondence for the RJ-45 receptacle.

Router A

(Cisco 12000 series)

Router B

(Cisco 7500 series)

Router C

(Cisco 7500 series)

POS

EO

Host A

Network 1.0.0.0

EO

Host B

S6755

Host A

Network 2.0.0.0

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