1. PnP Networks Self-Aware Networks Self-Aware Networks Self-Healing and Self-Defense via Aware and Vigilant Networks PnP Networks, Inc. August, 2002

2. PnP Networks Self-Aware Networks Overview Project New cognitive architecture to address self-healing and self- defense in distributed networks Will require advances in representation and reasoning, communications and interaction technology, computational perception, and learning Begin with LAN problem testbed; later transition to other RAP applications

3. PnP Networks Self-Aware Networks Areas of Research Innovation Partially observable Markov decision processes Distributed diagnosis and repair using coalition logic and game theory Hierarchical distribution of intelligence Adaptation and learning

4. PnP Networks Self-Aware Networks Technical Rationale Critical need for distributed cognitive networks Operating with or without a centralized command node Each node having knowledge of overall network and goals Cognitive hierarchy functioning at individual node level, collaborating with neighboring nodes, and with global coordination and learning Adaptive knowledge, building on individual and collaborative experience

5. PnP Networks Self-Aware Networks Technical Rationale (continued) LAN problem ideal for study Well-defined problem; can be specified using only commercial components. Complex – currently requires extensive human expertise System is inherently distributed and amenable to solutions based on coalitions or teams of agents System is subject to unpredictable changes in connectivity, hardware, firmware, and software at any time in any of its components Connectivity of the system is unreliable, especially for wireless networks

6. PnP Networks Self-Aware Networks Network Self-Awareness All modes of cognition resident in each node Active Virtual Collaboration Link Expired Virtual Collaboration Link Physical (or wireless) Connection Removed Connection Communicate experience for installation and configuration Update experience base with feedback WAN Remove Node Collaboration Bus Add Node Authenticate New Node Auto-configure Initialize state Information Initiate Collaboration Bus Remove from Collaboration Bus Reconfigure Node Register new application/functionality Auto-configure Re-initialize state Information Update Collaboration Bus Advise and Adapt Routing Node Attached Peripheral Advisor Node Computing Node

7. PnP Networks Self-Aware Networks Network Self-Healing, Self-Defense Active Virtual Collaboration Link Expired Virtual Collaboration Link Physical (or wireless) Connection Removed Connection Communicate experience for diagnosis and repair Update experience base with feedback WAN Collaboration Bus Web Server Attack Identify source Request assistance from firewall Network Application Failure Identify incorrect/incompatible settings, consulting with neighboring nodes Adjust local settings Request network settings adjustment from routing node Corrective Response Routing/Firewall Node Attached Peripheral Advisor Node Computing Node

8. PnP Networks Self-Aware Networks A Hard Problem The problem of distributed cognition is hard, and not yet tested in real-world domains. This will be the first application to combine –Extensive formal representation of network states –Partitioned and hierarchical intelligence –Coalition reasoning –Adaptive distributed knowledge base