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Correct Answer: D

Software-defined networking (SDN) is an architecture purporting to be dynamic, manageable, cost-

effective, and adaptable, seeking to be suitable for the high-bandwidth, dynamic nature of today's

applications.

The SDN architecture is:

Directly programmable: Network control is directly programmable because it is decoupled from forwarding

functions.

Agile: Abstracting control from forwarding lets administrators dynamically adjust network-wide traffic flow to

meet changing needs.

Reference: Wikipedia, Software-defined networking

Correct Answer: A

Table ID n/a indicates that OpenFlow 1.0 is in use. Example of the Flows View for a Specific OpenFlow Device

The "Table ID" field applies to OpenFlow 1.3 and greater, but not to OpenFlow 1.0.

Reference: HP VAN SDN Controller Administrator Guide

Correct Answer: B

Correct Answer: D

The LLDP messages allow the link service to discover that there is physical link between two switches. If the LLDP message on one side of the link (Packet_Out) is received on the other side of the link (Packet_In) by a switch, LS knows that the two switches are connected to each other. The service is also responsible for identifying multi-hop links. These are links where non- OpenFlow devices are connected between two OpenFlow switches and thus separate the OpenFlow switches. The Link Service does this by sending BDDP (Broadcast version of LLDP) messages in addition to LLDP messages. LLDP is a one hop protocol and may be consumed by a non-OpenFlow switch because LLDP uses a multicast address which the intermediate switch may have subscribed to the LLDP multicast. However, a broadcast frame (BDDP) will be forwarded typically by the intermediate switch. BDDP has the same TLV information as LLDP.

Reference: HP SDN Network Services Modules

Correct Answer: CD

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HP VAN SDN Manager provides the following: / Consistent management experience across SDN and traditional networks / Configuration, monitoring, and policy management for a software-defined network / OpenFlow switch management for quick troubleshooting and deployment

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SDN management HP Provides a complete SDN management solution that: / Delivers network agility through rapid provisioning and automation of network policy enforcement and enabling SDN deployments. / Accelerates application deployment through rapid provisioning of server connectivity. / Enables service agility and velocity from access to core through network resource provisioning. / Provides comprehensive management of all SDN layers.

Reference: Mock RFI for Enterprise SDN Solutions