Zhone 6219-X1 Guía Del Usuario

 

To add a new connection for the WAN interface, click Add. 

The ATM PVC Configuration screen follows as seen below. The ATM PVC Configuration screen 
allows you to configure an ATM PVC identifier (VPI and VCI) and select a service category.  

 

Find out the following values from your ISP before you change them: 

•  VPI : Virtual Path Identifier. The valid range is 0 to 255. 
•  VCI : Virtual Channel Identifier. The valid range is 32 to 65535. 
•  Service Category : Five classes of traffic: 

o

  UBR Without PCR (Unspecified Bit Rate without Peak Cell Rate)—UBR service is 

suitable for applications that can tolerate variable delays and some cell losses. 
Applications suitable for UBR service include text/data/image transfer, messaging, 
distribution, and retrieval and also for remote terminal applications such as 
telecommuting.  

o

  UBR With PCR (Unspecified Bit Rate with Peak Cell Rate) 

o

  CBR (Constant Bit Rate)—used by applications that require a fixed data rate that is 

continuously available during the connection time.  It is commonly used for 
uncompressed audio and video information such as videoconferencing, interactive 
audio (telephony), audio / video distribution (e.g. television, distance learning, and pay-
per-view), and audio / video retrieval (e.g. video-on-demand and audio library). 

o

  Non Realtime VBR (Non-Real-time Variable Bit Rate)—can be used for data 

transfers that have critical response-time requirements such as airline reservations, 
banking transactions, and process monitoring. 

o

  Realtime VBR (Real-time Variable Bit Rate)—used by time-sensitive applications 

such as real-time video. Rt-VBR service allows the network more flexibility than CBR. 

 

6219-X1 Router Users Guide

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