Describes how upgrade requests for Protocol Packs are handled when some devices run incompatible Cisco IOS XE versions, including saving the request until a compatible software upgrade occurs and dropping the request if a subsequent upgrade still does not support the Protocol Pack.
If you attempt to execute a Protocol Pack upgrade for a set of devices, it is possible that one or more of the devices are using a Cisco IOS XE software version that does not support the new Protocol Pack. In this case, the upgrade does not proceed for those devices.
You can choose an option for SD-WAN Manager to save the upgrade request. SD-WAN Manager then checks the device when it receives a software upgrade, and if the new software version supports the Protocol Pack, SD-WAN Manager completes the upgrade.
Workflow
In unusual cases, SD-WAN Manager may drop the request to upgrade a device’s Protocol Pack. This occurs when the next software upgrade on the device also does not support the Protocol Pack that you tried to push to the device.
- You try to push a Protocol Pack x to a device using a software version that does not support the Protocol Pack x. Result: SD-WAN Manager does not push the Protocol Pack. It saves the request and checks back later to determine when the device will be able to support Protocol Pack x.
- You upgrade the device’s software to another version that still does not support Protocol Pack x. Result: In this case, SD-WAN Manager still cannot push the Protocol Pack to the device, and it drops the pending request.