Refer to the exhibit.
Correct Answer: D
Explanation/Reference:
Explanation:
Incorrect:
Not A: Southbound API is not used by external Applications.
Not B:
Topology service to create a network graph and compute the shortest path between two hosts.
Not C:
The link discovery service is responsible for discovering and maintaining the status of links in the OpenFlow network. The link discovery would record Mac Addresses, not IP addresses.
* Northbound API Relative to figure 1 below, the Northbound API is the API that enables communications between the control layer and the application layer (external business applications.
Southbound API
Relative to Figure 1 below, the Southbound API is the API that enables communications between the control layer and the infrastructure layer (OpenFlow).
Figure 1. ONF’s SDN architecture
* Putting the region configurations in place in a controller team ensures seamless failover and failback among the configured controllers for the specified network devices in a region. That is, when a master controller experiences a fault, the Role Orchestration Service ensures that a slave controller immediately assumes the master role over the group of network devices to which the failed controller was in the master role.
Reference: Technical white paper, Mock RFI for Enterprise SDN Solutions
Reference: HP VAN SDN Controller Administrator Guide
Note:
* The exhibit shows that the IPv4 source address, 10.10.10.0 is a private network.
The exhibit shows that the IPv4 destination address, 192.168.56.0 is also a private network.
* display openflow instance instance-id flow-table [ table-id ]
Display flow table entries for an OpenFlow instance.
