This applies to Windows and Linux OS
We have been reported high CPU load on some Cisco 7609-S MPLS nodes caused by MPLS LSP table polling.
Then have suggested to disable the LSP feature by putting
but it seems LSP table polling continues and nodes still experience CPU issues.
To fix this you need to get a Hotfix from Support. This defect is tracked as QCCR1B155325 would be fixed in upcoming patch of MPLS 10.20.
Micro Focus Support