Which two statements about the Cisco ACI Layer 4 to Layer 7 service integration are true?
(Choose two.)
A.
Cisco ACI fabric cannot detect when a server detaches from the network.
B.
Cisco ACI fabric cannot detect when a new server attaches to the network.
C.
When an endpoint detaches from the Cisco ACI fabric, the Cisco APIC cannot notify the Layer
4 to Layer 7 service to dynamically remove configuration.
D.
When an endpoint detaches from the Cisco ACI fabric, the Cisco APIC can notify the Layer 4 to
Layer 7 service to dynamically remove configuration.
E.
When a new endpoint attaches to the Cisco ACI fabric, the Cisco APIC can notify the Layer 4 to
Layer 7 service to dynamically add additional configuration.
F.
When a new endpoint attaches to the Cisco ACI fabric, the Cisco APIC cannot notify the Layer
4 to Layer 7 service to dynamically add additional configuration.
D & E
Endpoint and Network Event APIs
The following APIs are called when an endpoint or a network configuration changes for endpoint groups (EPGs) that are associated with the graph:
def attachEndpoint( device, configuration, endpoints )
def detachEndpoint( device, configuration, endpoints )
def attachNetwork( device, configuration, networks)
def detachNetwork( device, configuration, networks )
These APIs are called only if the device specification supports an endpoint or network attach notification and you have enabled a notification on the function connector. The AttachEndpoint and DetachEndpoint events are called when an endpoint within an EPG attaches or detaches. The network APIs are called when you modify the subnet configuration under the bridge domain or EPG. These APIs provide information to enable the automation of any service function configuration that should be modified on an endpoint or network configuration change. An example would be if you dynamically add and remove a server from a pool that is attached to a load balancer or dynamically update a subnet within an access list defined for a firewall. The device specification file can define an empty function that returns success in the return format that is required by the APIC. It is not mandatory to support endpoint or network event handling functionality.
IT is D and E Because:
The APIC can manage both the network fabric and services – This ability allows orgs to automate service insertion and eliminate the challenge of managing the complex traffic-steering techniques of traditional service insertion.
It also provides automation for the inserting of physical and virtual devices with a consistent and familiar interface.
The APIC enables automation of service policy usinga REST API with XML and JSON data formats from a Central point.