ZyXEL Communications G.SHDSL.bis 4-port Security Gateway P-793H - Manual (Page 76)

P-793H User’s Guide
76 Chapter 5 WAN Setup
The VBR-nRT (non real-time Variable Bit Rate) type is used with bursty connections that do
not require closely controlled delay and delay variation. It is commonly used for "bursty"
traffic typical on LANs. PCR and MBS define the burst levels, SCR defines the minimum
level. An example of an VBR-nRT connection would be non-time sensitive data file transfers.
5.3.1.3 Unspecified Bit Rate (UBR)
The Unspecified Bit Rate (UBR) ATM traffic class is for bursty data transfers. However, UBR
doesn't guarantee any bandwidth and only delivers traffic when the network has spare
bandwidth. An example application is background file transfer.
5.4 Internet Connection
To change your ZyXEL Device’s WAN remote node settings, click Network > WAN >
Internet Connection. The screen differs by the encapsulation.
See Section 5.1 on page 71 for more information.