Hi Raphael, We've got a few large customers with MX450s that have been maxing out their 'device utilization' and when we contacted TAC they were able to provide detailed CPU reports for the MX Hubs showing the CPU is hitting over 100% regularly. This is causing latency issues, HA failover and some OSPF drops to its neighbouring core switch. We have optimised the MX's as much as we can and it did improve. But CPU has slowly crept up again. They are suggesting we fail over the to the standby MX as the first test. We'll do that tonight. The other customer we have they've offered an extra MX to load balance the traffic. Smells to me like there are known issues. Would be good to get an API call for it but I'm guessing they don't want us to know. Let me know how you are going with a resolution. We'll being going vMXs in a few months so that might be our 'fix' Cheers Barry
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