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Service Provisioning for Wireless Mesh Networks Eric Koskie

Service Provisioning for Wireless Mesh Networks Eric Koskie

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Service Provisioning for Wireless Mesh

NetworksEric Koskie

OverviewWhat services are commonly being deployed on municipal networks

Wireless Mesh Networks

Service Offerings

Free Internet AccessRegistered

Unregistered

Fee-based Public AccessFlat-Rate

Differential-Rate

OverviewWeb 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

IntroductionMunicipal 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

IntroductionThese 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 WiFiLaptops, PDAs, Cell Phones

May eventually migrate to WiMAX

8 to 30 WAPs to cover one square mileWAPs 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 OfferingsFree 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 systemsInteract 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 Fee-based 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 FilteringNon-profits and municipalities restrict users from being able to reach certain sites

Use of a firewallBlacklist

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 SafetyPublic 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

UsersSpend 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 ReadingCurrently labor-intensive

Water and electric meters

Traffic monitoringSpeeding 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