Glossary

Constant Bit Rate

An ATM service category that supports a constant or guaranteed rate to transport services such as video or voice as well as circuit emulation requiring rigorous timing control and performance parameters.

Circuit Emulation Service (CES)

The ATM Forum circuit emulation service interoperability specification provides interoperability agreements for supporting constant bit rate (CBR) traffic over ATM networks that comply with the other ATM Forum interoperability agreements. Specifically, this specification supports emulation of existing TDM circuits over ATM networks.

End-to-End Timing Requirements

Timing requirements that address the restrictions on the amount of time a cell can take in getting from source to destination.

Point-to-Point Connection

A connection with two endpoints (default in CES-CBR configuration).

Point-to-Multipoint Connection

A collection of associated ATM VC or VP links, with associated endpoint nodes, with the following properties:

1.

One ATM link, called the Root Link, serves as the root in a simple tree

 

topology. When the Root Node sends information, all the remaining

 

nodes on the connection, called the Leaf Nodes, receive copies of the

 

information.

2.

Each of the Leaf Nodes on the connection can send information directly

 

to the Root Node. The Root Node cannot distinguish which Leaf is

 

sending information without additional (higher layer) information.

3.

The Leaf Nodes cannot communicate directly to each other with this

 

connection type.

Broadmore 1750 - Release 4.6

Glossary-7

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Carrier Access 1750 user manual Point-to-Point Connection