To enable Arista switches running EOS to stream telemetry data to ONES controller, API gNMI and eAPI need to be enabled
Enabling eAPI
bash$ ssh username@myswitch Password: <passw0rd> myswitch> enable myswitch# configure terminal myswitch(config)# management api http-commands myswitch(config-mgmt-api-http-cmds)# no shutdown
Verification eAPI
myswitch(config-mgmt-api-http-cmds)# show management api http-commands Enabled: Yes HTTPS server: running, set to use port 443 HTTP server: shutdown, set to use port 80 Local HTTP server: shutdown, no authentication, set to use port 8080 Unix Socket server: shutdown, no authentication VRFs: default