january 23-26, 2007 ft. lauderdale, florida preparing your network for an ip pbx tmcu-201-1 warren...
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![Page 1: January 23-26, 2007 Ft. Lauderdale, Florida Preparing Your Network for an IP PBX TMCU-201-1 Warren Sonnen Director of Product Management Epygi Technologies](https://reader035.vdocument.in/reader035/viewer/2022081514/5697bfdb1a28abf838cb08f7/html5/thumbnails/1.jpg)
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January 23-26, 2007• Ft. Lauderdale, Florida
Preparing Your Network for an IP PBX
TMCU-201-1
Warren SonnenDirector of Product Management
Epygi Technologies [email protected]
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January 23-26, 2007• Ft. Lauderdale, Florida
Agenda
• The Basics
• Discovery & Assessment
• Is The Network Ready?
• Installation
• What Next?
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January 23-26, 2007• Ft. Lauderdale, Florida
The Basics
• Real-Time Protocol (RTP) • Latency• Jitter• Packet Loss• Echo• Quality of Service (QOS)• Mean Opinion Score (MOS)
– 1.0 – 5.0
• Quality of Experience (QOE)
Layer 2 SwitchLayer 2 Switch
PCPC PCPC PCPC PCPC
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January 23-26, 2007• Ft. Lauderdale, Florida
The Basicscont.
Local Area Network (LAN)• Wide Area Network (WAN)• Virtual LAN (VLAN / IEEE 802.1Q)• Differentiated Services Code Points (DiffServ)• Type of Service (TOS)• IEEE 802.1p
PCPC PCPC PCPC PCPC
RouterRouter
Layer 2 SwitchLayer 2 Switch
VLAN BVLAN A
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January 23-26, 2007• Ft. Lauderdale, Florida
Discovery & Assessment
• Network Topology• Current hardware elements• IP addressing scheme• Large-scale data applications• Service level agreement (SLA)
• Assessment• Voice traffic simulation• Metric translation• Duplex mismatch• Stress the network
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January 23-26, 2007• Ft. Lauderdale, Florida
Discovery & Assessment cont.
• Delay should be under 150 milliseconds• Jitter buffers can resolve mild jitter - 20 to 40 ms buffer• Packet Loss should not be less than 1%• Mean Opinion Score (MOS) between 3.5 and 4.1 is desired
• LAN• Voice traffic simulation• Type of current traffic• Traffic flows• Link speeds• Current network stress
• WAN• Internet Service Provider (ISP) type• Current usage
• Backbone congestion• Bursting• Link type
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January 23-26, 2007• Ft. Lauderdale, Florida
Is The Network Ready?
• Review the baseline assessment• Have all “The Basics” been addressed?• HUBS vs. Managed Switches• Application level gateway (ALG) firewall• Make appropriate changes• Codec decision
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January 23-26, 2007• Ft. Lauderdale, Florida
Is The Network Ready? cont.
• Test it again!
• Was there an improvement?• Did the anomaly resurface?• Did the final simulation mimic estimated traffic
activity?
• Security
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January 23-26, 2007• Ft. Lauderdale, Florida
Installation
Good Luck!Good Luck!
Successful Deployment vs. Unsuccessful Deployment
• Unknown environment• End-user driven install• On-site setup• First time install
• Informed installer• Installation plan• Pre-staging• Qualified/Trained
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January 23-26, 2007• Ft. Lauderdale, Florida
What Next?
How important should VoIP be to the customer?• The number ONE critical application
How can I ensure my VoIP stays #1?• Periodic health checks• Client PC health – Virus, Worms, SPAM, and
Spyware• Plan new application deployments
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January 23-26, 2007• Ft. Lauderdale, Florida
What Next? cont.
Is this all free?• Outsourcing this activity• Managed service revenue• Maintenance revenue• Network assessment and diagnostic fees
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January 23-26, 2007• Ft. Lauderdale, Florida
Mission Criticalor
Mission Impossible?
Warren SonnenDirector of Product Management
Epygi Technologies [email protected]