Cisco Systems XR 12410 manual shows

Chapter 2 Preparing for Installation

PRP Port Connection Guidelines

Figure 2-13 shows:

•You cannot access Network 2.0.0.0 from Ethernet port (E0) on the PRP in Router A. You can only access Host A, Host B, and Router C, which are in Network 1.0.0.0 (see dotted-line arrows).

•To access Network 2.0.0.0 from Router A, you must use an interface port on one of the line cards (a POS line card in this example) in Router A. Data from Router A is routed through Router B and Router C, to reach Network 2.0.0.0 (see solid-line arrows).

Figure 2-13 Using the Ethernet Port on the PRP

Router A	Network 1.0.0.0
(Cisco 12000
series router)		Host A
EO

POS
	Host B
		Network 2.0.0.0
EO		Host A
Router B
(Cisco 7500
series router)	Router C	26196
	(Cisco 7500
	series router)

Cisco XR 12410 Router Installation Guide

OL-13832-01 2-27