Upgrading from Cisco IOS XE 16.x and later releases to Cisco IOS XE Dublin 17.15.1w
Prerequisites and Considerations
Manual ROMMON Upgrade
If you are upgrading from Cisco IOS XE Everest 16.8.1 or later, manual ROMMON upgrade is not required.
If you are upgrading from Cisco IOS XE Everest 16.6.x or Cisco IOS XE Fuji 16.7.x to Cisco IOS XE Dublin 17.15.1w, manual ROMMON upgrade is necessary. Refer to the Section Manual ROMMON Upgrade for instructions.
Downstream-Controller Remapping (CBR-CCAP-LC-G2-R with 8x10G DPIC)
Starting with Cisco IOS XE Bengaluru 17.6.1, Cisco introduced a new feature on cBR-8 that provides initial support for 32 Video and 32 DOCSIS service groups per CBR-CCAP-LC-G2-R linecard. However, there are specific configuration considerations when using 8x10G Remote PHY Digital Physical Interface Card (D-PIC) with CBR-CCAP-LC-G2-R linecards.
If you are upgrading from Cisco IOS XE Amsterdam 17.3.1 or earlier, and you are using 8x10G Remote PHY Digital Physical Interface Card (D-PIC) with CBR-CCAP-LC-G2-R linecards, see the section entitled Downstream-Controller Remapping (CBR-CCAP-LC-G2-R with 8x10G DPIC) below. Further, it is recommended that you contact your local Cisco representative for assistance before upgrading to Cisco IOS XE Dublin 17.15.1w.
Upgrading using reload
Upgrading from 17.6.1y or Earlier Images
If upgrading from 17.6.1y or earlier, you must copy .pkg files individually to the cBR-8. The tarball below contains all 20 packages and the packages.conf file that are required for upgrading. Before upgrading the system, make sure the following requirements are met:
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Download the 17.15.1w tarball file from Cisco.com Software Center to a local server, using the following URL: https://software.cisco.com/download/home/286283913/type
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IOS XE Software Version 17.15.01w: cbrsup-universalk9.17.15.01w.SPA.pkgs.tar.
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Untar the archive on the local server.
Procedure
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Step 1 |
Create a new folder on the cBR-8: harddisk:XE-1715-1w.
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Step 2 |
Create a new folder on the cBR-8: stby-harddisk:XE-1715-1w.
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Step 3 |
Copy the
Repeat for all |
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Step 4 |
Copy the
Repeat for all |
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Step 5 |
Verify the hardware programmable devices upgrade package against the md5 hash as provided in the Cisco.com Software center.
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Step 6 |
Configure the system to boot in sub-package mode.
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Step 7 |
Save the configuration
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Step 8 |
Reload the system
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Upgrading from 17.6.1z or Later Images
Before upgrading the system, make sure the following requirements are met.
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Download two files from the following Cisco.com Software Center URL.
https://software.cisco.com/download/home/286283913/type
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IOS XE Software Version 17.15.01w. cbrsup-universalk9.17.15.01w.SPA.bin
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IOS XE Hardware Programmable Devices Version 17.15.1w. cbrsup-programmable_firmware.17.15.01w.SPA.pkg
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Procedure
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Step 1 |
Copy the Cisco IOS XE Dublin 17.15.1w IOS image to harddisk: and stby-harddisk:.
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Step 2 |
Verify the Cisco IOS XE Dublin 17.15.1w IOS image against the md5 hash as provided in the Cisco.com Software center. The md5 hash check may not support images greater than 2 GB in size.
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Step 3 |
Copy the hardware programmable devices upgrade package to harddisk: if the file has not been copied already.
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Step 4 |
Verify the hardware programmable devices upgrade package against the md5 hash as provided in the Cisco.com Software center.
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Step 5 |
Configurethe system to boot with the Cisco IOS XE Dublin 17.15.1w image.
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Step 6 |
Save the configuration.
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Step 7 |
Reload the system
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What to do next
Perform verification test to determine if the upgrade is successful, include.
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Verify the router is running the new IOS-XE release using show version command.
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Check facility alarms using show facility-alarm status command.
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Check the status of the power supplies using show environment power command.
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Check PS status using show platform hardware slot P<0-5> mcu status command.
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Complete trace routes to known good off-network IP address using the source address of customer CPE blocks to verify routing is working.
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Check logs for error messages using show log command.
These show commands may be useful in the verification test.
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show redundancy
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show platform
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show platform diag
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show environment
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show redundancy linecard all
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show isis neighbors
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show ip ospf neighbor
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show ip route rip
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show ip mroute
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show cops servers
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show cable modem voice
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show cable calls
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show cable metering verbose
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show cable licenses all
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show inventory
Upgrading with ISSU for I-CCAP Systems
ISSU from any older Cisco IOS XE release to Cisco IOS XE Dublin 17.15.1w is not supported. If you are upgrading from Cisco IOS XE 17.12.1z2 or an earlier release, you must upgrade the cBR-8 system following the steps in Upgrading using reload.

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