Re: [DNA-BOF] Initial Reading List ideas for DNA

[Alper Yegin <alper@docomolabs-usa.com>]

Hello,

Here are two more drafts that are relevant to this work.

http://www.yegin.org/alper/draft-manyfolks-l2-mobilereq-02.txt

This work was originally driven by the Mobile IP fast handovers work. We
made an attempt to formally define link-layer triggers (so called hints in
Bernard's document) in an abstract form. Their details differ among
link-layer technologies, but a uniform abstraction is needed from IP
perspective. Potential consumers of these triggers are discussed in the
document.

http://ietf.org/internet-drafts/draft-yegin-l2-triggers-01.txt

This draft proposes a protocol that conveys the link-layer triggers when the
trigger is generated on one IP node and consumed in another. Example
scenario is WLAN APs connected to access routers. If the access router wants
to know when a host connects or disconnects, it needs to be notified by the
AP.

I think the relevance of link-layer triggers to DNA comes from this: We can
develop some heuristics for hosts to consume some network layer information
(such as DHCP info, router advertisements, ND or ARP results) to determine
if it has moved. Using link-layer triggers would not only enhance the
perfomance of these mechanisms, but also help increase the confidence of the
hosts in such determinations.

Another angle on this work is, we might also consider the network side for
assisting network attachment detection. If the network is made aware of
arrival of a new host, it might provide additional hints to the host.

Finally, while detecting network attachment is important for host to take
actions to restore IP-layer connectivity, detecting detachment of a host is
also important/useful for networks in order to at least free up resources.
Do we consider this in scope?

Alper