Converged Service A Dartmouth Perspective Bob Johnson

Background Campus roughly one mile square User population is about 10,000 Over 200 buildings/structures Campus is completely wired Currently 970 APs deployed

Convergence Vision Applications are converging Collaboration & multimedia The economics finally make sense Focus resources to support one network Must deliver a communications utility Wireless IP Phones Speech Activated communications Streaming Video

The Wireless Decision-2001 Dartmouth has a history of investing in technology Computing is pervasive Mandated for students “Put wireless everywhere and see what happens”

First Generation Deployment Cisco Aironet 350 series (802.11b) Over 500 APs installed Every AP tied to the backbone Deployed over 18 months Coverage is ubiquitous Approximately 2200 active users per day Traffic types – File sharing, web, email No authentication – “Wireless Frontier” Standards not set Could not mandate client

Evolving Wireless Vision Must deliver converged services Same as wired Support for emerging services Mobility is a given Deliver support for latency sensitive services Wireless Network must act as a “system” with other computing resources

Third Generation Wireless Develop two wireless layers Expand 1st layer for general purpose bandwidth Low bandwidth access (802.11b  g) to higher bandwidth Develop 2nd layer for high bandwidth latency sensitive services (802.11a) (i.e. video, next generation voice) Increase AP density and thus bandwidth Power control Built-in site survey, auto config Load balance associations Reduce or eliminate weak client pulling down others Build for mobility Provide transparent authentication/remediation for access to both wired and wireless network

So….What’s been Converged VOIP Cisco Call Mgr’s supporting hardwired, soft and handheld devices Vocera Speech Activated communications system Video over IP Video Furnace encoding 62 channels, Multicast VOD pilot to support 50 meg, concurrent-Unicast

Converged Device Opportunities Handheld converged devices provide opportunity for partnerships within campus Opportunity to solve problems for other departments ROI often not directly realized by Computing Services Projects require not only diverse visionary support, but fiscal as well

Mobilizing Dartmouth Where we are going Campus wide access for students 1 Wireless VoIP for faculty and staff 2 Wired and Wireless security monitoring system 4 802.1x security keeps systems secure 6 Real-time people locator for faculty and staff 3 Wireless Video enhances teaching 7 Secure wireless access in lecture halls 5

Remote Dartmouth Wireless Anywhere you have internet access APs “Phone Home” through secure VPN tunnel All remote APs have same credentials Secure, authenticated access to converged communications resources VOIP, Video, traditional data Virtual Office(your campus office in your home) Traveling Faculty, Staff, Students

Automatic Real-time Location Tracking Multi-point triangulation enables fine granularity (within 3 ft) Real-time location service tracks radio source as it moves Eliminates manual walkabout to fingerprint RF propagation Independent of the radio device and drivers RSSI = X The device/user is located RSSI = Z RSSI = Y

Policy-based Network Access Service Delivery Based on Who, What, When, Where and How Identity aware I am Matt Green, the employee Device aware I am Matt Green with a laptop with no viruses or worms Traffic aware I am Matt Green with a laptop using a soft phone Time aware I am Matt Green with a laptop using a soft phone at 1:40 pm Location aware I am Matt Green with a laptop using a soft phone at 1:40 p.m. in the clinic

Virtual Attendants Use location dependent services to “push” content to users Concept of who/where/when First implementation is campus tour with Vocera Badges Working with Library to provide stack attendant services in un-staffed locations. Other possibilities are campus tours, security/escort services

Conclusion While it is the responsibility of Computing Services to provide platforms to provide layered services, the entire enterprise stands to gain from all that convergence to offer. For these convergence efforts to be truly successful, a true partnership needs to develop between CS and the community at large.