Contextualized Information-Centric Home Networking (draft-ravindran-cibus-01.txt) IRTF/ICN-RG (IETF-89) Ravi Ravindran, Asit Chakraborti, G.Q.Wang

Current Home Networking Status Usually single subnet scenario – Multiple subnets possible for better signal quality Service discovery restricted to one subnet, require infrastructure multicast support for multiple subnet case. – Routing another requirement Heterogenous systems are silo or costly integration – Climate Control (Honeywell), Video Surveillance (third party), Entertainment systems etc. – Security and Trust issues Several non-interoperable standard: DLNA, Zigbee, Zwave, AllJoyn – No easy way to integrate them [1] – Lack unified Naming/Addressing or scheme Homenet working group focuses on IPv6 enablement, and not on enabling intelligent home networks. [1] Colin Dixon et al, “An operating system for the Home”, NSDI, 2012

What should HomeNet focus on ? Zero Configuration – Except for connecting to the closest access point authentication. Easy to introduce heterogeneous devices/services – Any IoT things: Appliances, Cars, Thermostats, G-Glasses – Service inside or outside home Policy Configurations – Home user should be able to configure service policies easily and enforce them. Inter-connect services at will. – e.g. refrigerator should be able to create an event, and any other application/service should be able to consume and act on it. Service composition should be integral – E.g. entertainment system should discover, lights/shades in room, and offer choices to compose it.

Why ICN is more apt ? ICN can elevate home networking to a new level of experience. ICN features that helps Home Networking Configuration-less: ICN can operate in configuration less mode. – Local interfaces (BT, Wifi-Di, etc) can be equally exploited as infrastructure ones (Wifi, LTE) Homogeneity : Potential homogenous protocol working at different scale (BAN/PAN/LAN/WAN). Distributed Intelligence: Distributed Caching/Storage, Computing, Bandwidth resources can be leveraged equally. – Low computing devices (terminals, appliances) and high power devices (Gateways, Internal Routers) can participate equally in information dissemination. Security/Trust Models: Varying Security/Trust models can be applied based on application/service requirements. Contextualization : Receiver oriented communication can augment context. Service Composition: Service composition can be made easy as services can be discovered easily within local space or over infrastructure. Multi-homing/Mobility Handling : Integral part of ICN design

Context Handling in Home Networks Intelligent home networks have to adapt to various contexts. – Home devices (services) in/out – Foreign devices in/out – Device proximity (ad hoc versus infrastructure) – Device/Service Location in the home – Enabling new devices (appliances, sensors etc.) – User mobility to different rooms – Social context (Personal/Professional Groups) – Service adaptation to device change context – Service context changes (Spatial, Temporal) –..and more

Policy Handling in HomeNets Service Accessibility – Authentication/Authorization (Guest, Home members etc.) – Privacy Service Scope – Limiting service to a specific local space – Time constraints Service Reachability – Only local or Global from the Internet (e.g. setting thermostat) Service Composition – The service has limitation on who can leverage it …

Contextualized Information-Centric BUS (CIBUS) CIBUS is a middleware that spans Terminals, Internal Routers, Gateways and/or into the network CIBUS allows devices/applications/services to interact in a contextual manner ICN DevicesApplicationsServices Service Management Context Monitoring Processing Name Management Policy Based Routing and Forwarding L2 (BT, Wifi-Di, Wifi, LTE, ) CIBUS Smart Grid Smart Health Smart Transport CIBUS ICN Edge Cloud Services Internet CIBUS HomeNet [CIBUS API] [ICN API] Contextualized Adaptive MAC Layer

CIBUS Functions Service Management – Policy based Discovery – Service Publication – Service Subscription – Service Notification – Content Query/Response Processing Context Monitoring and Processing – Context Monitoring – Context Subscription – Context Notification Name Management – Service Naming (Scope: local, Global) – Secure, Human Friendly Policy Based Routing and Forwarding – Forwarding interests based on satisfying contextual/policy requirement – Heterogenous MAC Layer Adaptation Contextualized Adaptive MAC Layer – Link Management – i/f Selection – MAC Encoding/Decoding/Data Rate/MTU

CIBUS API – Service_Publish(Name, {context}, {Policy}) Profile, Policies, Services – Service_discovery({filters(name..)}, {Policy}) Discover services which meet some policy requirements For Home Nets, Service Discovery can also set the policy based reachability – Service_Subscribe(Name, {context}, {Policy}) Subscribe to specific events (contents, context change etc.) – Service_Notify(Name, {context}, {Policy}) Notify applications or services when a specific event or context change happens – Service_Policy(Name, {Policies}) Triggered due to user or context change – Content_Primitive(Name, {context}, {Policy}) Receive content request and respond by invoking the right service * Context and Policy changes with different scenarios and ecosystems such as Homnets, Smart Grid, Transport etc.

ICN API – Certain Context and Policy enforcements can be applied in the ICN plane, e.g. multicast/broadcast, name-based firewall – Get (Name, {Context}, {Policy(routing-scope, security,..)}) Service_get(Name, {Context}, {Policy(…)}) – Seek service in the local or global scope Content_get(Name, {Context}, {Policy(…)}) – Seek content that satisfies certain requirements – Put (Name, {Context}, {Policy(routing-scope, security, caching..)}) Service_put(Name, {Context}, {Policy(...)}) – Establish reachability while enforcing context, and policy requirements Content_put(Name, {Context}, {Policy(...}) – Establish content reachability while enforcing context and policy to its accessibility

ICN Based HomeNet Prototype A subset of CIBUS features is realized to demonstrate the flexibility ICN provides to handle heterogeneous radios, D2D and infrastructure communication modes. Scenarios: 1.Health Monitoring 2.Trusted D2D (Group-ID, Group Key) 3.In-home Sensor Service 4.CCNx over /Wifi/Infras tructure Trisha Biswas et al, “Contextualized information-centric Home networks”, SIGGCOMM, 2013

Conclusions and Future Actions The draft presents at a high level functional view of a intelligent service layer over ICN to accommodate heterogenous Devices, Applications, and Services. Requires standardization on Service profiles, Contexts, Policies representation and expression. As a future ICN-IoT work item – Consider HomeNet as the ICN-IoT work item, formalize the middleware framework ? – Protocol design and CIBUS platform development ? – More complex use case HomeNet + Smart Grid + Health Care work item ?

Thank You