2008 NAEO Annual Conference Matthew S. Crocker Computing power - - PDF document

2008 NAEO Annual Conference Matthew S. Crocker Computing power Networking power

• Prediction: Computers will get faster!
• Moore’s law

 Computing power will double every 2 years

 Virtualization

 CPU power is wasted, sitting idle, eating power  Virtualization runs multiple virtual machines on the same hardware, increasing efficiency, Security & Reliability

• VMWare
• Citrix (XenServer)
• Microsoft Virtualization Server

 Prediction: Networks will get faster!  All communications can be broken down into three

types of networks

• Broadcast networks (radio, television) P=N
• Point to Point networks (PSTN) P=N^2
• Point to multi-point Networks (Internet) P=2^N

 Using the power of the Internet for all applications.

Spend your money making your Internet connection fast and reliable.

• EoIP
• MPLS
• SaaS
• VoIP

 Everything over IP

• All applications will migrate to IP technologies

 Backup  Disaster Recovery  Business Continuity  Credit card processing  Paging

 Multi-Protocol Label Switching

• High performance network infrastructure able to provide

QoS, Security, Survivability, Reliability

• Based on IP Technology
• All major national/global carriers operate MPLS

networks.

• The ‘Internet’ is a virtual network running over an MPLS

core.

• Allows carriers to provide Differential Services to replace

legacy applications (ATM, Frame Relay …)

 Software As A Service

• Web based technologyallows hosting providers to deliver

desktop applications over the Internet

 Google  NetSuite  Salesforce.com  Microsoft& Yahoo!

• Let the hosting company deal with backup, disaster

recovery, development

 Voice is an application  Voice over Internet Protocol

• NOT equal to Voice over the Internet
• VoIP is free of geographic limitations

 TNs can be anywhere

• QoS – REQUIRED (avoid the Internet)
• Signalling – SIP,MGCP, H.323
• Codecs – g.711u, g.729

 TDM is dead  E-mail is dying  VoIP has massive growth potential  SMS ‘Texting’ & IM replacing voice

 SIP Interface for Infinity  VoIP enabled voice-logger  Switching operator stations to VoIP

• Softphonew/USB headset

 Replacing PRIs with VoIP  SPAM  Unreliable  Insecure  Convert to web based services for message

pickup & delivery (IS) using SSL

• Confirmed message pickup
• Makes customers ‘sticky’

 Hosted messaging – new business opportunity

(SaaS)

 Bandwidth, bandwidth, bandwidth

• QoS is required but does not create bandwidth
• High speed, low latency, LOW JITTER!!!!

 N+1 for IP connectivity

• Symmetrical service (no DSL)
• 80kbps per g.711u call
• 20kbps per g.729a call

 Teenagers text more than they talk

• They will be our customers customer in the next 5-10

years

• How will you handle the communications needs of your

customers in the future?

• SMS -> Message that can be acted on
• Instant Messaging

 We have an opportunity to provide additional

communications services for our customers.

 Makes our customers ‘Sticky’  Low Capex, outsource to hosting providers

• We become the aggregator, wholesaler, integrator of our

customers communications needs.

 Questions?

 Quality of Service

• It is all about QoS

 DSCP aka DiffServ.

• The Internet doesn’t support QoS
• MPLS does support QoS
• QoS is an end-to-end solution, all devices must support

QoS in order for it to work.

• Latency (how long does it take)
• Jitter (How often does Latency change?)
• High Latency is ‘ok’, high Jitter is BAD!

 Differentiated Services Code Point

• Part of an IP packet header (Express mail)
• Packets are marked with DSCP at the end points
• DSCP is checked at every router/switch in the path
• Routers/Switches use DSCP to select queues for packet
• processing. Express lane for high priority traffic
• QoS needs to be configured on EVERY device in the

path, it is NOT on by default

 G.711u – same 64kbps as TDM but packetized.

High quality, high bandwidth codec – 80kbps per call

 G.729 – compressed, low bandwidth, high CPU

requirements, licensing fees – 20kbps per call

 T.38 – Faxing over IP

 Session Initiation Protocol (SIP)

SIP has won the battle.

 MGCP, Megaco, SCCP (skinny), H.323, H.248  Signaling is what does call setup and teardown –

Similar to ISDN-PRI (q.931)

 Asterisk is an open source VoIP

PBX/switch/Voicemail/IVR application

 Runs on Linux