TANDBERG D14049.04 145, Applying Pipes to Links, One Pipe, One Link, One Pipe, Two or More Links

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Pipes

TANDBERG VIDEO COMMUNICATIONS SERVER ADMINISTRATOR GUIDE

Applying Pipes to Links

Pipes are used to restrict the bandwidth of a link. When a pipe is applied to a link, it will restrict the bandwidth of calls made between the two nodes of the link - the restrictions will apply to calls in either direction.

Normally a single pipe would be applied to a single link. However, one or more pipes may be applied to one or more links, depending on how you wish to model your network.

One Pipe, One Link

Applying a single pipe to a single link is useful when you wish to apply specific limits to calls between a subzone and another specific subzone or zone.

One Pipe, Two or More Links

Each pipe may be applied to multiple links. This is used to model the situation where one site communicates with several other sites over the same broadband connection to the Internet. A pipe should be configured to represent the broadband connection, and then applied to all the links. This will allow you to configure the bandwidth options for calls in and out of that site.

Example

In the diagram opposite, Pipe A has been applied to two links: the link between the Default Subzone and the Home Office subzone, and the link between the Default Subzone and the Head Office subzone. In this case, Pipe A represents the Head Office’s broadband connection to the internet, and would have total and per-call restrictions placed on it.

Two Pipes, One Link

Each link may have up to two pipes associated with it. This is used to model the situation where the two nodes of a link are not directly connected, for example two sites that each have their own broadband connection to the Internet. Each connection should have its own pipe, meaning that a link between the two nodes should be subject to the bandwidth restrictions of both pipes.

Example

In the diagram opposite, the link between the Default Subzone and the Home Office Subzone has two pipes associated with it: Pipe A, which represents the Head Office’s broadband connection to the internet, and Pipe B, which represents the Home Office’s dial-up connection to the internet.

Each pipe would have bandwidth restrictions placed on it to represent its maximum capacity, and a call placed via this link would have the lower of the two bandwidth restrictions applied.

VCS CONTROL

HEAD OFFICE				HOME OFFICE
			INTERNET
		Pipe A	Pipe B
	Default				Home Office
					Subzone
	Subzone

Pipe C

BRANCH OFFICE

Branch Office

Subzone

Introduction	Getting Started	Overview and	System	VCS	Zones and	Call	Bandwidth	Firewall	Applications	Maintenance	Appendices
		Status	Configuration	Configuration	Neighbors	Processing	Control	Traversal
D14049.04					145
JULY 2008