IETF98, Chicago
Tuesday 28th March 2017
16:40 - 18:40 local time
Chairs’ Introduction
Kerry Lynn: IoT in Charter?
Chairs: Should work within dnssd but will discuss at end
DNS Push Notifications
https://tools.ietf.org/html/draft-ietf-dnssd-push-10
Stuart Cheshire presenting
Chairs: Started WGLC but will extend to pick up knock ons from Session Signalling
ACTION: authors will collect input from WG last call on draft-ietf-dnssd-push-10; will see if anything needs to be changed from upcoming WG last call on draft-ietf-dnsop-session-signal in dnsop
DNS Session Signalling
https://tools.ietf.org/html/draft-ietf-dnsop-session-signal-02
Stuart Cheshire presenting
Chairs: Any other uses?
Stuart Cheshire (SC): Ray Belis had this in mind
Sara Dickinson (SD): use for Persistent Connections for DNS over TLS
ACTION: this draft is a dnsop WG work item; no dnssd WG action.
DNS-SD Discovery Proxy
https://tools.ietf.org/html/draft-ietf-dnssd-hybrid-06
Stuart Cheshire presenting
ACTION: draft-ietf-dnssd-hybrid-06 is ready for IESG review; find a shepherd (any volunteers? else chairs will arrange)
DNS-SD Advertising Proxy - discussion
(plus Sleep Proxy, Discovery Broker, Zone Stitching, and DNS-SD roadmap)
Stuart Cheshire presenting
- Discovery Broker:
Meta Discovery Proxy
Network Intermediary
looks like Discovery Proxy to client
looks like client to Discover Proxies and other servers
Client talks to one Discovery Broker, which talks to several Discovery Proxies
Discovery Proxy on link can server single Discovery Broker, serves multiple clients
Hum on in favor: strong
Hum against: silence
*Chairs* Hum in Favor
ACTION: Noting hum in favor, WG encourages further work on this topic
- Sleep Proxy
DNS Update
Garbage Collection (dynamic DNS update leases)
wake-on-lan magic packet (EDNS0 owner option)
Barbara Stark(BS): More than one magic packet. May be too simplistic
SC: Thanks, not aware of multiple packets.
BS: There is a U PnP that we could harmonize on.
Andrew Sullivan(AS): Useful work. Work most effectively done here? may not attract the right people.
SC: Providing the service discovery services that others in IETF can use.
Ted Lemon(TL): Not the right place to start on this project. Magic packet okay, but garbage collection may need more
investigation. More high level
Eric (): Makes sense. asking about other parts of the sleep proxy.
Present in intarea.
Samita Chakrabarti (co-chair of 6lopan): Good work, could be integrated into other devices. missing in 6lopan, service discovery
Christian H(CH): Push for documentation work.
Chairs: Present at IntArea
ACTION: No objection, so proceeding with writing this documentation is encouraged; resulting document to be presented at intarea WG meeting for external revies of components such as ARP and ND proxy
- Advertising Proxy:
Mirror image of Discovery Proxy
Basically sleep proxy w/out wake-on-lan
TL: tried to game out dns update process, lot of exchanges
SC: Starts to explain, asked to take to mailing list
Chairs: Hum on progressing this work
Hum for: strong
Hum against: silence
ACTION: Noting hum, progressing this work is encouraged
- Zone Stitching
Avoid duplicate names
ACTION: this work is still conceptual; no explciit action from this presentation
DNS-SD roadmap
Wild Drawing with many boxes and arrows and RFCs that need to be seen to believed
KL: talked about not reflected finer grain discovery. REST dominant paradigm for applications.
working on a document to reflect URI
Terry Manderson (TM): Love this, new format supports SVG
AS: defining split horizon DNS without explicitly naming this.
SC: little bit of it is split horizon, but the rest is not.
AS: ticking time bomb of split horizon w/out claiming it is.
Chairs: Understand the point, getting close to that in another area.
ACTION: this work is still conceptual; no explciit action from this presentation
Privacy Extensions for DNS-SD
https://tools.ietf.org/html/draft-ietf-dnssd-privacy-01
Christian Huitema (CH) preseting
No Comments in room. working on implementation in GetDNS
ACTION: draft-ietf-dnssd-privacy-01 is ready for WG last call
Device Pairing Using Short Authentication Strings
https://tools.ietf.org/html/draft-ietf-dnssd-pairing-01
Christian Huitema (CH) preseting
Suggstion was to split the draft into 2 parts:
first part informational document
second part focusing on standard track specification
Chairs: Who have read? (not many). think it reads fine, but could move first into an appendix.
Dave Thaler(DT): Like having design rationale in the same document.
*Chairs* Do not split document
*Chairs* Stuart/Ted/Tim volunteer to read and review document.
ACTION: WG preference is not to split the document; Stuart Cheshire, Ted Lemon, Tim Wicinski to review; ready for WG last call after next revision
DNS-SD Deployment for campus/enterprise networks - BCP document discussion
Tom Pusateri presenting
We should have a BCP on deployment of campus/enterprise
Tom Pusateri(TP): Not enough information, no deployment experience. Larger scale to work out kinks
Chairs: maybe start informational as place to start
Ran Atkinson(RA): BCP might be premature. strongly believe informational document how the pieces fit together.
happy to help with use cases.
TP: Document I have is more about the knobs you have on a proxy.
Dan York(DY): Document useful but maybe don't use BCP.
*Chair* Ran signed up to assist
ACTION: WG encourages continued work on this document; volunteers
welcome (Ran Atkinson offered some help); likely to be Informational
rather than BCP, at least for now.
Simple Homenet Naming and Service Discovery Architecture
https://tools.ietf.org/html/draft-tldm-simple-homenet-naming-00
Ted Lemon presenting
DNSSD on Homenet
DNSSD Discover -> DNS
DNSSD -> Core Resource
Split DNSSD Hybrid Proxy into two parts
relay proxy
query proxy
DNSSD -> DNS Problems
SC: Lease Lag time to clean up
TD: Still would like printer that is turned off to keep its name
TP: Hard part about DNSSEC is can not do NSEC records
ACTION: exploratory at this stage; no actions for dnssd WG
Stateful Multi-Link DNS Service Discovery
https://tools.ietf.org/html/draft-lemon-stateful-dnssd-00
Ted Lemon presenting
ACTION: exploratory at this stage; no actions for dnssd WG; Ted needs
to think about problem to be solved, which existing dnssd components
can be reused, and what the gaps are.
DNS-SD in IoT (and constrained network environments)
Peter avan der Stock (presenting)/Ines Robles
how to adapt/extend DNS-SD for IoT
- Resource Directory
KL: ongoing work, not work needs to be done. CORE has a charter item to inter operate with
dns-sd. semantic mapping of things look like services and dns-sd records.
SC: want to see concrete numbers.
DT: Bringing up code size point.
(unknown): Use this at employer for brokerless pub/sub
ACTION: dnssd and CoRE WG representatives encouraged to meet and
discuss way forward, e.g. Stuart, Carsten, Kerry, Peter.
Summary of actions
push notifications: collect info from wglc wait on session signal in dnsop, move forward to iesg
discovery proxy: needs a shepherd
discovery broker: hum to do document; hum in support advertising; did not hum on zone stitching
dnssd roadmap - strong support
privacy extensions - ready for wglc
device pairing: not to split in 2 pieces, ready for wglc after revisiion
stuart ted ronald
DNS-SD and CORE/IoT to work together.