Jason Gao wrote:
...
--- IPv6 flow label assignment
Transport layer may set a 'control' bit in the IPv6 Traffic Class octet of
the initiating packet
during the setup phase of a connection.
The edge router inspects the control bit. If it is set, the edge router can
further inspect the
packet, and reserve resource as required by the piggybacked resource
reservation header in the
transport layer packet, allocate and/or assign a flow label to the expected
connection, put the flow
label in the flow label field of the initiating acknowledgement packet.
No. There is no such usage of the traffic class octet. See RFC 2474.
Also, only the source host of a packet may set the flow label.
See draft-ietf-ipv6-flow-label-03.txt
Brian