Allied Telesis AlliedWare Plus Operating System Version 5.4.4C (x310-26FT,x310-26FP,x310-50FT,x310-50FP) User Manual
Page 671
IPv6 Introduction
Software Reference for x310 Series Switches
C613-50046-01 REV A
AlliedWare Plus
TM
Operating System - Version 5.4.4C
26.5
.
Table 26-1: IPv6 packet - Field Description
Field
Function
Ver
Version of the IP protocol that created the packet. For IPv6,
this field has a value of 6.
Differentiated Services
8-bit value that contains the 6-bit DSCP and is used to
prioritize traffic as part of a Quality of Service system. For
more information, see
. Additional information can
be found in RFC 2474, Definition of the Differentiated
Services Field (DS Field) in the IPv4 and IPv6 Headers.
Flow Label
20-bit value that indicates the data flow to which this
packet belongs.This flow may be handled in a particular
way.
Payload Length
Length of the user data portion of the packet. If the data
payload is larger than 64 kB, the length is given in the
optional “Jumbo Payload” header and the Payload Length
header is given a value of zero.
Next Header
Number that indicates the type of header that immediately
follows the basic IP header. This header type may be an
optional IPv6 extension header, a relevant IPv4 option
header, or another protocol, such as TCP or ICMPv6.
The IPv6 extension header values are:
0 (Hop-by-Hop Options Header)
43 (IPv6 Routing Header)
44 (IPv6 Fragment Header)
50 (Encapsulating Security Payload)
51 (IPv6 Authentication Header)
59 (No Next Header)
60 (Destination Options Header)
Hop Limit
Field that is the equivalent of the IPv4 Time To Live field,
measured in hops.
Source IP address
128-bit IPv6 address of the sender.
Destination IP address
128-bit IPv6 address of the recipient.
Optional extension
headers
Headers for less-frequently used information.
User data
Payload.