Raw IPv6 Datagrams
General
Using the raw IPv6 message transfer mechanism, software associated with a CA can support standard protocols layered atop IPv6, such as TCP and UDP.
Raw IPv6 Datagram Format
Figure 21-2 on page 544 illustrates the format of a Raw IPv6 request packet (there are no response packets). The packet contains the following elements:
LRH:
- LRH:DLID is used to guide the packet through the IBA subnet to a router ingress port.
- LRH:SL defines the desired QoS for the packet's travel through this IBA subnet.
IPv6 Routing Header:
- The IPv6 Routing Header contains the address of the final destination in its DGID address field.
- TClass defines the desired QoS for the packet's travel from the source port to the final destination.
- - FlowLabel. ...
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