To enable Arista switches running EOS to stream telemetry data to ONES controller, API gNMI and eAPI need to be enabled
Enable API gNMI
Arista-DCS-7010T(config)#management api gnmi
Arista-DCS-7010T(config-mgmt-api-gnmi)#transport grpc default
Arista-DCS-7010T(config-gnmi-transport-default)#port 50052
Arista-DCS-7010T(config-gnmi-transport-default)#provider eos-native
Arista-DCS-7010T(config-mgmt-api-gnmi)#end
Arista-DCS-7010T#show management api gnmi
Octa: enabled
Transport: GRPC
Enabled: yes
Server: running on port 50052, in default VRF
SSL profile: SELFSIGNED
QoS DSCP: none
Authorization required: no
Accounting requests: no
Certificate username authentication: no
Notification timestamp: last change time
Listen addresses: ::
Transport: default
Enabled: yes
Server: running on port 6030, in default VRF
SSL profile: none
QoS DSCP: none
Authorization required: no
Accounting requests: no
Certificate username authentication: no
Notification timestamp: last change time
Listen addresses: ::
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
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