Chapter 4 - Networking; Preplanning For Voip Deployment; Benefits; Requirements - Toshiba IP edge General Description Manual

Ipedge systems and virtual server
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Networking
This chapter provides a description of the various network related configuration pieces that need to
be done when using VoIP networks and installing the IPedge system.

Preplanning for VoIP Deployment

Benefits

• More accuracy and predictability in estimating budget requirements (and TCO) for the VoIP
deployment by identifying network infrastructure needs up-front.
• Reduce cost of deployment by reducing trouble shooting costs.
• Reduce cost of post deployment maintenance and support by having the necessary information
before hand.
• Improve Project Management – All requirements and conditions for a successful VoIP
deployment are articulated, considered and factored prior to deployment.

Requirements

Network Assessment – A network assessment must be carried out to determine whether network
or service upgrades are required to support a VoIP deployment. Toshiba recommends carrying out
the network assessment with QoS enabled on the network.
Site Inventory Analysis – A site survey must be carried out to determine the list of network
devices required for a given deployment. This survey must include considerations for the
minimum required capability (feature set) and capacity for any networking device. A Gap analysis
must then be performed to determine what upgrades or purchases would be required to support the
deployment. The following table can be used for reference when doing Site Inventory Analysis.
Network Device
Switches
Routers
Firewall and NAT
IPedge General Description
Capability
QoS, VLANs, Autosensing, PoE
QoS – DiffServ, DSCP 46
Ability to set firewall rules
granularly.
Flexibility to translate based on
address and ports if required.
03/16
Capacity
Port Capacity
Port Bandwidth (GigE)
Throughput, Latency, Jitter
Uplink port Bandwidth
Throughput, Latency, Jitter
Throughput, Latency, Jitter
4
47

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