Question: The IPv6 standard states that if a packet with a nonzero flow label arrives at a router and the router has no information for that

The IPv6 standard states that if a packet with a nonzero flow label arrives at a router and the router has no information for that flow label, the router should ignore the flow label and forward the packet.

a. What are the disadvantages of treating this event as an error, discarding the packet, and sending an ICMP message?

b. Are there situations in which routing the packet as if its flow label were zero will cause the wrong result? Explain.

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