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Cisco IOS XR Getting Started Guide
OL-10957-02
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 3-4 lists the differences between intra-rack switch and inter-rack switch for the 22-port SCGE
card.