Transcript Service Provisioning for Wireless Mesh Networks

Service Provisioning for
Wireless Mesh
Networks
Eric Koskie
Overview
What services are commonly being deployed on
municipal networks
Wireless Mesh Networks
Service Offerings
Free Internet Access
Registered
Unregistered
Fee-based Public Access
Flat-Rate
Differential-Rate
Overview
Web Filtering
Wireless Spectrum Preservation
Public Safety
Video Surveillance
Mobile Government Users
Virtual Private Networks
Voice over IP (VoIP)
Meter Reading
Government as Anchor Tenant
Dedicated Internet Access
Advanced Network Services
Introduction
Municipal Wireless networks are a hot new topic in
the face of telecom today
Enhance services to community
Over 300 governments have created Municipal
Wireless networks
Several Reasons for Municipal Wireless Networks
Bridge the digital divide
Combine government services and public access
Introduction
These networks will be owned and managed by many
different entities
Multi-system Operators (MSOs)
Wireless ISPs
Phone Companies
Wireless Mesh
Networks
Based on 802.11 WiFi
Laptops, PDAs, Cell Phones
May eventually migrate to WiMAX
8 to 30 WAPs to cover one square mile
WAPs use mesh capabilities to bring all network traffic
back to a single access point
This access point provides the backhaul for all other
WAPs
Uses DSL, Cable, T1, point-to-point wireless, or WiMAX
Service Offerings
Free Public Access
Unregistered
Registered
Flat-Rate Fee-based Public Access
Differentiated-Rate Fee-based Public Access
Web (URL) Filtering
Spectrum Preservation
Public Safety
Video Surveillance
Mobile Government Users
Service Offerings
(cont.)
Virtual Private Network (VPN)
Voice over IP (VoIP)
Meter Reading
Government as Anchor Tenant
Dedicated Internet Access
Free Internet Access
(Unregistered)
Free Internet Access
Roaming capability of mesh networks allows for
users to move between access points
A stationary device may seek out the best possible
connection
Free Internet Access
(Registered)
Requires RADIUS server to authenticate users
Standards-based Authentication, Authorization, and
Accounting (AAA)
Juniper Networks Steel Belted RADIUS server is
deployed to ensure use by only registered users
Flat-Rate Fee-Based Public
Access
New requirements emerge with fee-based access
Need special billing systems
Interact with network and allow access from customer
service representatives
Limit user bandwidth to what they pay for
Need to be aware if users are active and have paid
Steel Belted RADIUS sets up Multiservice Edge Router
Differentiated-Rate Feebased Public Access
Customers receive different charged for different
levels of service
Users may pay for unlimited usage
Users may be limited to a peak information rate
Users may be limited to a certain number of bytes of
download per day
Users may be guaranteed a minimum information rate
or any of a number of QoS Parameters
It is possible a user’s payments are not current and
need to be restricted from the network
Web Filtering
Non-profits and municipalities restrict users from
being able to reach certain sites
Use of a firewall
Blacklist
White-list
Sites are stored in database
Wireless Spectrum
Preservation
Each WAP has a limited amount of bandwidth
With the success of adding users, the network will
become more constrained
Operators will place control on several types of users
Abusive users must be prevented from placing malicious
traffic into the network
Worms and DoS attacks use up backhaul bandwidth
At-risk users
Intrusion Detection and Prevention firewalls
Public Safety
Public Safety communications have high standards to
meet
These standards have risen over the last five years due
to well-known failures of these networks
Police, fire, and rescue teams need be given higher
priority than other traffic
Operators need to be able to control the access rate
that devices send traffic onto the network
Video Surveillance
Presence of cameras can be a crime deterrent and
storage of video helps ensure convictions
Video cameras can monitor traffic
Video at special events can be quickly arranged with
a WiFi connection
QoS parameters must prioritize video data
Ability for operators to increase bandwidth to a
certain camera to increase quality
Mobile Government
Users
Spend significant amount of time traveling to
locations throughout the municipality
Inspectors
Building Inspectors
DPW employees
Need security due to dealing with public trust data
Odyssey Client on user laptop for security
Steel-Belted RADIUS
Voice over IP (VoIP)
Two categories:
Calls conducted with the network and network
operator’s knowledge
Skype
Vonage
Calls conducted without the network and network
operator’s knowledge
Meter Reading
Currently labor-intensive
Water and electric meters
Traffic monitoring
Speeding Tickets
Red light tickets
Handheld devices can transmit tickets, public safety
inspection reports and other government forms
Government as Anchor
Tenant
Key to overall success of Municipal Wireless Network
Government is very large with significant telecom
needs
Allows for fiscal security
Dedicated Internet
Access
Bridging the digital divide
Serve the Small/Medium Business (SMB) Market
MSOs, telcos, and wireless ISPs are trying to expand
customer base
SMBs only need firewalls and LANs
Advanced Network
Services
Operators will want to introduce new, advanced
services after initial deployment
Operators will want to sell these new services