Abstract: Techniques are disclosed for evaluating and facilitating high availability for network connection services provided by network infrastructure of one or more co-location facilities. For example, a computing system receives data from each network device in one or more co-location facilities, the data indicating the respective capability of each network feature of each network device to provide highly available operation across a plurality of communication model layers for supporting a network connection service to customer networks co-located within the one or more co-location facilities. The computing system applies high availability evaluation metrics to the data to determine a high availability capability score for each network device feature of each network device. Further, the computing system determines, based on the high availability capability scores, an indication of the high availability for the network connection service.