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Побудова SDN мереж (Creating HPE Software-defined Networks)

Побудова SDN мереж (Creating HPE Software-defined Networks)

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Can traffic be forwarded from Table 200 to Table 100 in an OpenFlow switch?

Can a routed, non-OpenFlow, transit network be used for the OpenFlow channel between the switch and the controller?

If a switch buffers a packet, what is sent to the controller?

b. IP address where the packet will be send

c. List of packets that are buffered on the switch

a. Port where the packet will be send

d. Only header information is sent to the controller

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What happens when you try to send traffic from a valid table to a nonexistent table in the OpenFlow pipeline?

b. The switch must return an OFP_ERROR_MSG message with the OFPET_FLOW_MOD_FAILED type

d. The switch must return an OFP_ERROR_MSG message with an OFPET_BAD_INSTRUCTION type

c. The switch must return an OFP_ERROR_MSG message with the OFPFF_CHECK_OVERLAP flag set

a. The switch must return an OFP_ERROR_MSG message with the OFPFMFC_OVERLAP code

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How did the switch learn the HP VAN SDN Controller IP address?

a. The switch and controller must exchange IP addresses using Echo request/reply messages

b. The switch must be dynamically configured with the IP address

d. The switch must obtain an IP address from the controller

c. The switch must be manually configured with the IP address

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What happens when you try to push a duplicate flow entry to the switch?

d. The switch responds with a OFPMFC_OVERLAP message

b. The switch responds with a OFPT_FLOW_MOD message

a. The switch responds with a OFPFC_DELETE message

c. The switch responds with a OFP_ERROR_MSG message

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What is the default table number used in Comware switch?

The n_buffers field specifies the maximum number of packets the switch can buffer when sending packets to the controller using packet-in messages. What is the value of the n_buffers field on the HP ProVision switch?

What happens if there is no table-miss entry?

a. Flow entries are dropped

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d. Flow entries remains in the flow table

b. Flow entries are sended to controller

c. Flow entries are sended to non-OpenFlow switch