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Cisco MGX 8950 Hardware Installation Guide
Release 3, Part Number 78-14147-02 Rev. A0, November 2002
Chapter 1 Product Overview
System Hardware Components
RPM-XF
The RPM-XFs are double-height service modules that support communication between non-ATM
services (such as Frame Relay and IP) and the ATM services on an ATM network.
The RPM-XF
• Provides integrated IP in an ATM platform, making possible services such as integrated PPP and IP
virtual private networks (VPNs) using MPLS technology.
• Provides Cisco IOS-based multiprotocol routing over ATM and ATM interface Layer 3 termination,
local server interconnect over high-speed LANs, access concentration, and switching between
Ethernet LANs and the WAN interfaces of the Cisco
MGX switch.
• Provides forwarding technology for packet switching capabilities in excess of 2 million pps. The
forwarding engine is packet based and is interfaced to the midplane of the system through a
combination of switch interface technologies.
• Provides Cisco IOS router services and also provides ATM connectivity to the Cisco MGX switch
serial interface at full-duplex OC-24.
• Uses an RM7000A MIPS processor, a parallel packet processing engine, an integrated ATM
interface, and a serial interface ASIC to interface with the Cisco MGX switch serial
interface
controllers.
When an RPM-XF is combined with a high-speed uplink back card and a management back card, a card
set is created. The RPM-XF card set consists of the RPM-XF-512 and the following back cards:
• MGX-XF-UI—A management back card that is always installed in the lower rear bay back slot
directly behind the RPM-XF.
• MGX-1OC12POS-IR or MGX-1GE—A back card that is always installed in the upper rear bay back
slot directly behind the RPM-XF.
The MGX-1GE must have one of the following SFP transceivers installed on it:
• MGX-GE-LHLX
• MGX-GE-SX
• MGX-GE-ZX