Transcript ICS Working Group - Mobility and the Future of Integrated

Mobility and the Future of
Integrated Communication
Strategies
Mike Staman – Macon State
Jim Jokl – University of Virginia
EDUCAUSE 2003
What are Integrated Communication
Services (ICS)?
• Many definitions over the years
– Financial perspective
• Lets run our telephone system over the data network
– Voice over IP (VoIP)
• Can’t we also run video over the data network?
– H.323, MPEG, Real Networks, Quicktime, etc
– Services perspective
• Can we link our voice mail and email?
– Unified Messaging products
• Can videoconferencing enhance productivity / avoid travel?
• What are the new “killer applications”?
What are Integrated Communication
Services (ICS)?
– Technology perspective
• What services should we deploy for our users?
• How do I keep my school from falling behind?
– “They” are doing wireless, so we should be too
• Should we deploy Skinny or SIP or H.323 for VoIP?
• What are the implications for the campus network?
– Basic question
• How do we keep up with growing user expectations?
• Especially hard in the current fiscal environment
User Expectation Trends
• Access many services from one workstation
• Access the same services from many devices
• Location independence
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Wired office network connection
At a wired network café
On the wireless LAN
In a home office
Out of town
A refined vision for ICS:
Support for Nomadic Computing
• Access to voice, data, and video
communications applications via device,
location, transport, and media independent
mechanisms
• Implies services such as locating a person via
one of many devices, at any location,
originating ID portability, integrated or findme messaging, authentication and privacy, etc
Today’s Agenda
• We’ll discuss some of the implications of
meeting these user expectations
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Technical issues
Financial model changes
Policy and organizational aspects
Service examples and planned projects
Technical Implications
for the wired campus network
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A stable cable plant and database
10/100 switched Ethernet
A high-capacity network backbone
Provisions for end-to-end management
QoS support
Multicast support
A wiring closet UPS infrastructure
– Backup power is for more than just E-911
Technical Implications
for the wireless campus network
• Existing applications use 802.11b
• Insufficient even for the near term
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Performance inadequate – 11 Mbps best case
Shared network
Security issues
Poor access control
Lack of available channels (spectrum)
802.11G helps - compatible with 802.11b
• Up to 54 Mbps
• Still a shared network in same 2.4 GHz band
Technical Implications
for the wireless campus network
• Fortunately wireless equipment also takes
advantage of Moore’s Law
• 802.11n
– 100+ Mbps in the 2005/06 time frame
• Wireless PANs
– Bluetooth: 30 feet, 64 kbps to 1 Mbps
– 802.15.3: up to 55 Mbps, multimedia capable
– Coexist with 802.11b/g in 2.4 GHz band
Technical Implications
for the wireless campus network
• Wireless VLANs & QoS
– Traffic isolation, support for voice applications
• What about 802.11a
– Many channels – operates in 5.8 GHz band
– Cost coming down; support for b/a/g cards
• Vivato-type technology
– Phased-array antenna directs radio energy
where it is needed
Technical Implications
for remote network access
• How do we enable the nomadic concept for
off-campus students and faculty?
– Is this really just plain old telecommuting?
– Many campuses have been successful
implementing network peering relationships with
ISPs
– Lease copper and install private DSL?
– Leverage next generation of wireless technology?
Technical Implications
for Wireless Metro Area Networks
• 802.16a WiMAX
– The next big thing in wireless space?
– Licensed and unlicensed operation
• Unlicensed in the 5.2 GHz and 5.8 GHz bands
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Near line of sight
Up to 30 miles and 70 Mbps
Will perform well with wide range of packet sizes
Large investments by Intel, others
Mid-2004 for products
Technical Implications
for Cellular Device Integration
• User’s desire
– Voicemail, paging, and messaging integration
– Desk phone calls to reach their mobile device
– “Wireless Office” functionality
• Feature transparency & integration
• No per-minute charges for on-campus use
– Wide area coverage
– Personal use enabled
• Two numbers, call tagging, etc?
Technical Implications
for Cellular Device Integration
• Integration with campus WLAN
– Some new cell phones support 802.11b VoIP
– Relationships with carriers essential
– Colorado State, Virginia, others working on
procurements in this area
• Integration with campus LAN
– Bluetooth phones for remote data network
access
An Interesting Wireless
Integrated Solution: Vocera
• 802.11b WLAN badge
• Voice recognition activated
• Integrated services
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Voice over WLAN
2-way telephony integration
Voicemail
Audio email
Text messaging
Group broadcast
User location feature
Wireless Impediment: Security
• Security problems can devastate a campus wireless
LAN
– Wireless has low capacity and is a shared media
– Wireless QoS is in its infancy
– You often can’t shut down an offending computer
• Rogue access points
• Ad-hoc mode
– Poor vendor security architectures
• Need a security model that spans network transport
Wireless Access Control and
Data Privacy
• Common mechanisms
– VPN, LEAP, EAP-TLS, PEAP, etc
– Vernier, Bluesocket, etc
• Remember limitations of special devices
– PDAs, cell phones, VoIP phones, Vocera badges
• Design infrastructure to support many
mechanisms
Will we do a lot of planning only
to be overtaken by events?
• In which multimedia transport should you invest?
– Cisco’s skinny VoIP protocol
– H.323
– Wait for SIP to be deployable on a large scale?
• What about Skype?
Skype
• A peer-to-peer system for Internet telephony
– From the people who developed KaZaA
• Designed to work in the presence of firewalls,
NAT, PAT
• All traffic is encrypted and better voice quality
• Technical implications
– Network infrastructure needs are similar
– but P2P applications are harder to support
Some Financial, Organizational and
Policy Implications to Consider
• A fundamental change in user relationships?
– We already consider the whole student experience
• Can we strengthen it further with new technology?
• Retain their interest better after graduation?
– Is the technology about to make this possible for
faculty and staff?
• How are you organized?
– Voice, data, video integrated?
– Cell phones in purchasing?
– Support as network complexity continues to grow
Some Financial, Organizational and
Policy Implications to Consider
• Do you recover costs for the right services?
• Typical schools charge for items such as
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Telephone
Network jack
Backbone
Internet capacity
Monthly cell phone and airtime minutes
Wireless LAN service
Remote access
Cable television
Some Financial, Organizational and
Policy Implications to Consider
• Do voice recoveries help pay for LAN or wireless
– What about Skype or Windows messenger?
• Current cost recovery practices are often a
disincentive for Nomadic Computing
– We want users to have their phone number everywhere
• Wireless devices, cell phones, desk phones, soft phones,
telecommuting, etc
– Enabling personal use should be a goal
• Money can be saved by both the school and the individual
Some Financial, Organizational and
Policy Implications to Consider
• An alternate financial model: might per-person
cost recovery work?
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Fund a basket of basic infrastructure services
Automatically scales like per-device charges
No disincentives for multi-device nomadic users
Use financial motivators to limit excess consumption
• One-time charges for expensive phones, software licenses,
items such as Vocera badges, etc?
• Normal billing for excess needs such as large numbers of
network jacks, high Internet capacity, etc?
Some Financial, Organizational and
Policy Implications to Consider
• Many possible financial alternatives
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Focus on overhead-type funding?
Per-user instead of per-device charges?
Continue with per-device charges?
Ensure that charges reflect the true cost of a
service
• Avoids providing a financial incentive for users to
do the wrong thing over the long run
Coming Events
• What is next for the ICS Group
• ECAR Project
– Research report on Integrated Communications
in Higher Education
• Future Meetings
– Changes in standard meeting schedules
• Is your campus working in these areas or is it
an interest of yours?
– Consider joining the ICS working group
• http://www.educause.edu/netatedu/groups/ics
• Next meeting – Tempe AZ - February
– Topic
Thank You
• Questions and discussion
Special thanks to the ICS Steering Committee
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Krystal Bullers
Douglas Carlson
Michael J. Enyeart
Mark Katsouros
Holly King
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Christopher Peabody
Steve H. Updegrove
Jose J. Valdes, Jr
Wendy Wigen