Local PSAP IP Network Infrastructure and NG9-1-1

Report
Local PSAP IP Network
Infrastructure and NG9-1-1
Michael Smith, DSS
Nate Wilcox, Emergicom
Jim Lockard, ENP, Consultant
NENA
NENA
Development
Development
Conference
Conference
| October
| October
2014
2014
| Orlando,
| Orlando,
Florida
Florida
What we’ll cover
Network Requirements
Common for any ESInet
Special PSAP Requirements
Things that will drive a PSAP network
design
NENA Development Conference | October 2014 | Orlando, Florida
What is an ESInet?
Just the network
Not the NG9-1-1 Core Services
Includes hardware and software
Designed to support the NG9-1-1 Core
Services and Other Public Safety
Applications
NENA Development Conference | October 2014 | Orlando, Florida
Is a PSAP network just another ESInet?
Yes!
And, of course, no!
It’s an ESInet with a few additional
requirements
NENA Development Conference | October 2014 | Orlando, Florida
What major factors drive PSAP network
design?
The applications, services, and interfaces
it must support
The critical nature of 9-1-1 itself
Policies
NENA Development Conference | October 2014 | Orlando, Florida
PSAP Virtualization and network design
Elements of a PSAP could be anywhere
But the design drivers remain the same
NENA Development Conference | October 2014 | Orlando, Florida
The i3 solution
The i3 solution: NENA 08-003 (STA-010)
NG9-1-1 Core Services
A PSAP is a Service itself
The i3 specifications drive network
requirements common to PSAP networks
NENA Development Conference | October 2014 | Orlando, Florida
The i3 solution
LoST
i3 Compliant
Originating
Network
SIP
B
C
SIP F
ESRP
ECRF
SIP
MF/SS7 Legacy
Legacy
Originating
Network
Network
Gateway
i3 ESInet
SIP
LoST
ESRP
B
SIP C
F
i3
PSAP
Legacy
PSAP
Gateway
MF/E-MF/DTMF
ALI Interface
ECRF
ALI – Automatic Location Identification
ECRF – Emergency Call Routing Function
ESRP – Emergency Services Routing Proxy
NENA Development Conference | October 2014 | Orlando, Florida
PSAP – Public Safety Answering Point
BCF – Border Control Function
ESInet – Emergency Services IP Network
Legacy
PSAP
Is a Domain really required?
Yes!
Why can’t I just have a “peer” or
“workgroup” style network?
NENA Development Conference | October 2014 | Orlando, Florida
What other common infrastructure is
required?
For managing and monitoring
For protecting and securing
For reliability and availability
For ensuring quality of service
NENA Development Conference | October 2014 | Orlando, Florida
Security for Next-Generation 9-1-1
Security for Next-Generation 9-1-1 (NGSEC)
Security is driver for network design
PSAPs must not be the weak link
NENA Development Conference | October 2014 | Orlando, Florida
Emergency Services IP Network Design for
NG9-1-1
A NENA Informational document
Outlines issues to consider
Provides guidance for design
Applies to all ESInets
NENA Development Conference | October 2014 | Orlando, Florida
Emergency Services IP Network Design for
NG9-1-1
OSI Layers 1, 2 and 3
Availability and Reliability
Network Security
Performance
Traffic Engineering and more…
NENA Development Conference | October 2014 | Orlando, Florida
Supporting PSAP interfaces to the serving
ESInet
Application Interfaces drive some
underlying network requirements
SIP Call Interface
Additional Data
Management and Monitoring
NENA Development Conference | October 2014 | Orlando, Florida
Performance requirements
Bandwidth requirements
Media and Metadata
Event and Media Recording
Traffic Prioritization
NENA Development Conference | October 2014 | Orlando, Florida
Availability and Reliability
What is “five nines”?
How do you achieve five nines?
What’s the difference between
Availability and Reliability?
MTBF and MTTR
NENA Development Conference | October 2014 | Orlando, Florida
Network Management and Monitoring
ESInets must be monitored
Mechanisms for monitoring:
SNMP – v3 vs. v2
Traffic Monitoring
Syslog – what it does
Proprietary mechanisms
NENA Development Conference | October 2014 | Orlando, Florida
Network Management and Monitoring
Mechanisms for Managing ESInets
As-built documentation
Service Level Agreements
Traffic
Capacity / Trending Analysis
Configuration Management
NENA Development Conference | October 2014 | Orlando, Florida
PSAP Connectivity (OSI Layer 1)
The Last Mile
Copper, Fiber, RF, Satellite
Reliability and Availability
Redundant and Diverse Paths
NENA Development Conference | October 2014 | Orlando, Florida
The data link layer (OSI Layer 2)
T1/T3
Frame Relay
ATM
MPLS
Metro Ethernet
NENA Development Conference | October 2014 | Orlando, Florida
The IP Layer (OSI Layer 3)
Dynamic Routing Protocols
There are choices
OSPF, EIGRP, etc.
The choices drive design requirements
NENA Development Conference | October 2014 | Orlando, Florida
IPv4 and IPv6
IPv4 is what we’ve seen for years:
179.166.10.1
We’ve run out of public addresses
IPv6 allows for more addresses:
2001:0db8:85a3:0042:1000:8a2e:0370:7334
Build for IPv6 out of the box
NENA Development Conference | October 2014 | Orlando, Florida
Traffic Engineering
Study your bandwidth requirements
Media consumes a lot – video and audio the
most
Text consumes less, but is still significant
Bandwidth and DDOS attacks
NENA Development Conference | October 2014 | Orlando, Florida
Quality of Service
What is QoS
Why do we need it
What design criteria does it drive?
NENA Development Conference | October 2014 | Orlando, Florida
Prioritizing network traffic
What is “DiffServ”?
Why does the i3 architecture require it?
What elements must support it?
How does that drive network design?
NENA Development Conference | October 2014 | Orlando, Florida
What’s special about a PSAP network?
The PSAP network has the same basic
requirements as any ESInet – it is an
ESInet
But it has a few additional ones, driven
by the job a PSAP does
NENA Development Conference | October 2014 | Orlando, Florida
What’s special about a PSAP network?
The PSAP will likely be connected to other networks
that require different, and possibly conflicting network
policies
Data services drive these policies (NCIC, LEO DB)
How do we mediate these?
And mitigate risks to disparate networks?
NENA Development Conference | October 2014 | Orlando, Florida
Policy impact on network design, and
vice-versa
How do your policy choices impact the
network you design?
How will your network design impact your
policy choices?
NENA Development Conference | October 2014 | Orlando, Florida
The “separate networks” issue
Why do vendors sometimes insist on a
separate physical network for their
applications?
Why does it matter?
Why is that a problem in NG9-1-1?
NENA Development Conference | October 2014 | Orlando, Florida
Interconnection to other networks
Connecting to certain data services like
NLETS and LEO carry restrictive security
requirements
Connecting to less-secure networks
introduce additional risks
NENA Development Conference | October 2014 | Orlando, Florida
The “Internet”
Both the PSAP and the ESInet that provides
NG Core Services to it will likely be
connected to the Internet
Why?
What special design problems does this
introduce?
NENA Development Conference | October 2014 | Orlando, Florida
Local “Administrative” networks
Most PSAP will be connected to one or
more “Administrative” networks
Examples?
How does this impact network design?
NENA Development Conference | October 2014 | Orlando, Florida
Questions, Comments?
NENA Development Conference | October 2014 | Orlando, Florida
NENA Development Conference | October 2014 | Orlando, Florida
This Is How a Title
Slide Looks
Chris Nussman, Comms Director
NENA: The 9-1-1 Association
NENA
NENA
Development
Development
Conference
Conference
| October
| October
2014
2014
| Orlando,
| Orlando,
Florida
Florida
Successful Slides & Presentations
Bullets, not paragraphs
Keep the type big so those in the back of the
room don’t have to squint
Clip art is not OK
Don’t read from slides; ask questions
NENA Development Conference | October 2014 | Orlando, Florida

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