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Cisco CRS-1 Carrier Routing System Multishelf System Upgrade and Conversion Guide
OL-12571-01
Chapter1 Upg rading to a Multishelf System
Restrictions for Upgrading to a Multishelf System
•Prepare the single chassis system as follows:
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Obtain the chassis serial number, which is required for configuration. The serial number is on
a chassis label and can be displayed using the show diag chassis, as described in Cisco IOS XR
Getting Started Guide.
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Upgrade the ROM Monitor software to Version 1.42 or later, as described in Cisco IOS XR ROM
Monitor Guide.
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For more information, see the documents in the “Related Cisco CRS-1 Multishelf Hardware
Documentation” section on page1-17.
•Prepare each fabric card chassis (FCC) as follows:
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Install the FCCs and distribute the eight fabric card chassis-switch fabric cards (FCC-SFCs,
product ID CRS-FCC-SFC) among the FCCs.
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Obtain the chassis serial number for each FCC, which is required fo r configuration. The serial
number is on a chassis label and can be displayed using the show diag chassis, as described in
Cisco IOS XR Getting Started Guide.
–
Ensure that the power to the FCCs is off.
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Connect all fabric cables to the FCCs, as described in Cisco CRS-1 Carrier Routing System
Multishelf System Interconnection and Cabling Guide.
–
For more information, see the documents in the “Related Cisco CRS-1 Multishelf Hardware
Documentation” section on page1-17.
Note You cannot connect the fabric cables to the pre-existing single-chassis rack until you replace the FC/S
cards in the line card chassis (LCC). To avoid service interruption, replace these modules and connect
the fabric cables only when instructed to do so in the procedure that appears in the “How to Upgrade to
a Multishelf System” section on page 1-3.
•Prepare the additional LCC as follows:
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Install the LCC and all cards.
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Obtain the chassis serial number, which is required for configuration.
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Ensure that the power to the LCC is off.
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For more information, see the documents in the “Related Cisco CRS-1 Multishelf Hardware
Documentation” section on page1-17.
•Prepare the control network (Catalyst 6509 switches) as follows:
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Install the Catalyst 6509 switches.
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Cable the Catalyst 6509 switches to the FCC and both LCCs, as described in Cisco CRS-1
Carrier Routing System Multishelf System Interconnection and Cabling Guide.
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Configure the Catalyst 6509 switches, as described in Cisco IOS XR Getting Started Guide.
–
For more information, see the documents in the “Related Documentation for the Catalyst 6509
Switch” section on page 1-18.
Restrictions for Upgrading to a Multishelf System
Cisco IOS XR Software Release supports the multishelf feature only on the 16-slot LCCs. This release
does not support multishelf operation using 8-slot LCCs.