This also helps with QoS, allowing us to prioritize traffic flows rather than individual packets.
The “traffic class” name comes from this field’s ability to allow us to assign levels of importance to a packet via QoS.
traffic class – In IPv4, this was the Type Of Service (TOS) field.QoS capabilities with IPv6 are far greater, due to many more values within the IPv6 header.DHCP is still available, but IPv6 nodes can assign themselves an address without the help of a DHCP server via autoconfiguration.IPv6 offers greater security capabilities.IPv6 was designed with route aggregation/summarisation in mind.IPv6 addressed are 128-bits in size, offering a hugh amount of addresses.