Cisco Systems Cisco IOS XR manual Restrictions for an Integrated Switch System

Chapter 3 Bringing Up the Cisco IOS XR Software on a Multishelf System

Integrated Switch System

•Requires Cisco IOS XR Software Release 3.4.1 to support 22-port SCGE cards.

Hardware Requirements

Route processors (RPs) should be revision 8 or higher. SMF cables are required and LX optics is recommended.

Restrictions for an Integrated Switch System

A mixture of 22-port SCGE and Cisco Catalyst 6K is not a supported configutation (except during migration procedures). For information about migration procedures, see Cisco CRS-1 Carrier Routing System Multishelf System Upgrade and Conversion Guide.

Before You Begin

Before you begin to bring up the integrated switch control network, consider the following items:

•See the “Related Documents” section on page x for a hyperlink to documents about installing and connecting Catalyst switches.

•For additional information regarding Cisco IOS commands and usage, see the “Cisco IOS Software Configuration” page at the following URL:

http://www.cisco.com/univercd/cc/td/doc/product/software/index.htm

Information About the Integrated Switch Implementation

To implement the integrated switch, you must understand the following concepts:

•Integrated Switch Overview, page 3-21

•Integrated Switch Functions, page 3-22

•Integrated Switch Control Network Topology, page 3-23

•LED Definitions for the Integrated Switch System, page 3-23

Integrated Switch Overview

Four switches are present on the 22-port SCGE card. Two switches provide connectivity to all cards inside the chassis. Two more Gigabit Ethernet (GE) switches on the board allow for all the external connections.

Table 3-4lists the differences between intra-rack switch and inter-rack switch for the 22-port SCGE card.

	Cisco IOS XR Getting Started Guide
OL-10957-02		3-21