H3C Technologies H3C WX3000E Series Wireless Switches - Manual (Page 111)

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IPv6 basics configuration
This chapter includes these sections:
• IPv6 overview
• IPv6 basics configuration task list
• Displaying and maintaining IPv6 basics configuration
• IPv6 basics configuration example
• Troubleshooting IPv6 basics configuration
NOTE:
•
The term "switch" or "device" in this chapter refers to the switching engine on a WX3000E wireless
switch.
• The WX3000E series comprises WX3024E and WX3010E wireless switches.
• The port numbers in this chapter are for illustration only.
IPv6 overview
Internet Protocol Version 6 (IPv6), also called IP next generation (IPng), was designed by the Internet
Engineering Task Force (IETF) as the successor to Internet Protocol version 4 (IPv4). The significant
difference between IPv6 and IPv4 is that IPv6 increases the IP address size from 32 bits to 128 bits.
IPv6 features
Header format simplification
IPv6 removes several IPv4 header fields or moves them to the IPv6 extension headers to reduce the length
of the basic IPv6 packet header. The basic IPv6 packet header has a fixed length of 40 bytes to simplify
IPv6 packet handling and to improve the forwarding efficiency. Although an IPv6 address size is four
times larger than an IPv4 address, the basic IPv6 packet header size is only twice the size of the
option-less IPv4 packet header.