While working for a network operator one of the things I realised was that of all the network outages which the Network Operations Centre (NOC) had to deal with, 80% of them were related to power. This is related to the CPE losing its power either from a trip, cabling being unplugged, or utility side outage. Of the remaining 20% of network outages, 80% are resolved by recycling the on premise networking kit. This implies only 4% of networking outages actually involve troubleshooting. However, in SDWAN development, vendors concentrate all of their efforts in that 4% and ignore the other 96%.
Read the article over at LinkedIn here.