Which of the following descriptions of the NSH business chain is wrong?

Question

Options

• AThe network that carries NSH packets must be a VXLAN network
• BThrough the metadata carried in NSH packets, the packets can be parsed on NSH-Aware SF
• CNSH-Unaware SF does not recognize NSH packets and discards them upon receipt
• DSFC Proxy receives packets from SFR on behalf of SFF and its associated NSH-Unaware

• A
  80% (16)
• B
  5% (1)
• C
  5% (1)
• D
  10% (2)

Explanation

Parse: NSH-Unaware SF: If the NSH packet is not recognized, the NSH-Proxy configuration needs to be delivered to the SFF associated with the NSH-Unaware SF, that is, deleted NSH encapsulates the information and then sends it to NSH-Unaware SF for processing. Through the metadata carried in the NSH header, the information carried by the packet can be known without encapsulation/decapsulation operations when the packet is parsed on the service node, which improves the efficiency of packet parsing and thus improves the forwarding performance.

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