On 17-mei-2005, at 20:15, marcelo bagnulo braun wrote:
The next question is what is the form of the packet exchange required
for Address pair Exploration and what information need to be included
in those packets. The faildet draft defines a mechanisms where nodes
send multiple poll messages using different address pairs. In each of
those poll packets, the node includes reachability information
obtained from previously received poll packets.
So, what is the information that needs to be included in these poll
packets?
It seems that the minimum required is to include enough information
to allow the node to identify which packet was received by the peer.
[...]
So, each poll packet needs to contain the following information:
- its own poll packet identifier
- the poll packet identifiers of previously received poll packets, in
the case that this poll packet is issued as a reply to a poll packet.
Anything else? security stuff?
Security stuff? Just make room for TLV options. :-)
I think including probe identifiers and address information for
recently received packets from the other side is good. This way, out
of (say) 6 probes sent, 3 received and 1 reply received back at the
original sender, we get to know reachability information for 1 address
pair and unreachability for 2 address pairs.
However, it gets even better if we also include ids and address pair
info for probes we recently sent or maybe even are about to send.