Transcript IEPREPSlideshow

IEPREP (Internet Emergency
Preparedness)
By: Jeffery Pelletier
Outline
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Explanation of IEPREP (Internet Emergency Preparedness)
Some major threats to an network (ie. Examples)
RFC 3487
RFC 3690
RFC 3523
RFC 3689
RFC 4190
RFC 4375
Statistics from 9/11
IEPREP
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Created for times of emergency and/or disasters.
– Access to any public telecommunications at hand
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Conventional phone
Internet Access
PDAs
Cell Phone
IP Telephones
The objectives:
– Create Network that will not get over congested in the
time of an emergency.
– Have uninterrupted communication between emergency
personal.
– Have proper authorization given to certain individuals.
Potential Threats to a Network
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Natural Disasters
– Hurricanes
– Floods
– Tornados
– Tsunamis
– Fires
– Earthquakes
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Man-Made Threats
– Terrorist Attacks
– Plane Crashes
– Hackers
RFC 3487
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Session Initiation Protocol (SIP)
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In times of emergencies, there needs to be access to circuit switched networks by
emergency personal.
– SIP contain large handling capabilities
– Limited though due to network capacities.
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Network Topologies:
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IP end-to-end
– IP to CSN
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Network Models:
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Pre-configured for ETS
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Transparent Model
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Transfer valid IP packets but has no control over protocols
SIP/RTP transparent
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Can modify behavior of certain protocols
User is in control of incoming/outgoing calls
Restricted SIP
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Cannot add certain SIP protocols
RFC 3690
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IP telephony requirements
Mapping used to distinguish PSTN lines
– Regular traffic vs. emergency traffic
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Exists in Application layer
– To keep track of billing
– To keep track of authorized usage. (abuse of service)
RFC 3523
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Describes topology naming conventions for IEPREP phone calls
Four topologies:
– IP bridging
 IP core between two circuit-switched networks
– IP at the start
 An IP phone makes a call to a circuit switched phone
– IP at the end
 A circuit switched phone makes a call to an IP phone
– End-to-End IP
 There are no circuit switched network phones and IP phones are used at both ends
RFC 3689
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Emergency Telecommunications System (ETS)
– Network setup for use in the times of emergencies
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Explains labeling
– Numeric
– Alphanumeric
– String of bits
Emergency Standards
– T1.631 = Used in accordance with the GETS system.
– E.106 = Guide to PSTN phone lines in the times of an emergency.
– F.706 = Extends E.106 into Multimedia type applications.
– H.604.4 and I.255.3 = Multi-level label mechanism for emergency
communications.
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Four Requirements
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IF Signaling = Fact that there is an emergency present.
Labels = Method to determine content of traffic.
Policy = Determines explanation of a specific characteristic.
Network Functionality = Probabilities vs. Guarantees.
RFC 4190
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Emergency system other than the norm
– 911 system in US
– 999 system in England
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Need for a system that extends national boundaries.
Governmental Emergency Telecommunications Systems (GETS)
– United States Emergency System
– First overseen by National Communication System
– Post 9/11, now overseen by newly formed Department of Homeland Security.
– Given priority over regular phone traffic.
– Credit card like approach used for authorization.
– Service guarantee (certain amount of packets get through no-matter what)
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Agencies Included in GETS development and advancement:
– Federal Emergency Agency (FEMA)
– NASA
– Department of Transportation
RFC 4375
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ETS
– Single administrative Domain
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4 examples
– Resource Domain = Router or a host and the physical media used connect the two.
– Administrative Domain = Collection of resources under one single authority.
– Transmit Domain = Transmits data from one domain to another.
– Stub Domain = Administrative domain that deals with the source of destination of
an IP packet.
Statistics from 9/11
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AT&T had call numbers of 430 million
– Up from 100 million from the previous day.
 Verizon Wireless had a 100 percent call increase from
the previous day.
 Increase of 100 percent of Washington DC phone
usage.
 Increase of 1000 percent of New Jersey phone usage.
QUESTION???????