Specifications

Cisco 12016, Cisco 12416, and Cisco 12816 Router Clock and Scheduler, Switch Fabric, and Alarm Card Replacement Instructions

OL-13811-01

Upgrading the Switch Fabric

Upgrade Procedures

To upgrade the switch fabric, follow these steps:

Step 1 Turn off power to the router.

Step 2 Remove all CSCs and SFCs. See the “Removing a Card from the Switch Fabric Card Cage” section on

page 12.

Step 3 Install the new CSCs and SFCs. See the “Installing a Card into the Switch Fabric Card Cage” section on

page 13.

Note Although they perform similar functions, you cannot intermix SFCs and CSCs. The switch fabric

is a card set. You must use either the 10- or 40-Gbps switch fabric card set.

Step 4 Insert a Flash memory card into the GRP or PRP, making sure that it is loaded with the appropriate Cisco

IOS Release, noted in the “Upgrade Requirements” section on page 24.

Step 5 Turn on power to the router and wait for all installed line cards to fully boot before proceeding to the

next step.

Note Let the router return to full operation before proceeding to the next step. This may take a

considerable amount of time depending upon the configuration of the router.

Step 6 At the privileged EXEC prompt, enter the configure terminal command to enter global configuration

mode.

Step 7 If you are using a Cisco IOS Release prior to 12.0(27)S, enter the service upgrade all command. If not,

skip to the next step.

Step 8 If you are using Cisco IOS Release 12.0(27)S or later, enter the service upgrade mbus-agent-rom

command.

Step 9 Cisco 12.0(27)S or later users also need to enter the service upgrade fabric-downloader command.

Step 10 After the commands have finished running, press Ctrl-z to exit configuration mode.

Step 11 See the next section, Verifying the Upgrade.

Note Additional information is available on the Cisco TAC website. Refer to the Cisco 12000 Series Internet

Router Upgrade Procedure document.

Verifying the Upgrade

To verify that the upgraded switch fabric is operating properly, follow these steps:

Step 1 Perform all the steps listed in the “Upgrading the Switch Fabric” section on page 23.

Step 2 Run the show gsr command to see if the new switch fabric cards are detected by the system.