Zhone 4-Port Wireless Ethernet Router
User Manual
26
Version 1.0
Document #: BD-ZU0011-10
Find out the following values from your ISP before you change them.
x
VPI
: Virtual Path Identifier. The valid range is 0 to 255.
x
VCI
: Virtual Channel Identifier. The valid range is 32 to 65535.
x
Service Category
: Five classes of traffic are listed—
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.
Connection Type
This screen shows the below types of network protocols and encapsulation modes—
x
PPP over ATM (PPPoA)
x
PPP over Ethernet (PPPoE)
x
MAC Encapsulation Routing (MER)
x
IP over ATM (IpoA)
x
Bridging
Select the mode that your ISP has instructed you to use and click on
Next
.
