User manual

Dynamix UM-SB Series User Manual V0.06
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VPI is 0 to 255.
VCI (Virtual Channel Identifier is for set up ATM Permanent Virtual Channels(PVC). The valid
range for VCI is 32 to 65535 ( 0 to 31 is reserved for local management of ATM traffic.)
QoS (Quality of Service) class : The Traffic Management Specification V4.0 defines ATM service
cataloges that describe both the traffic transmitted by users onto a network as well as the Quailty of
Service that the network need to provide for that traffic. There have four class four choice: UBR,
CBR, rt-VBR and nrt-VBR. Select CBR to specify fixed bandwidth for voice or data traffic. Select
UBR for applications that are non-time sensitive, such as e-mail. Slect VBR for bursty traffic and
bandwidth sharing with other applications.
UBR (Unspecified Bit Rate) is the simplest service provided by ATM networks. There is no
guarantee of anything. It is a primary service used for transferring Internet traffic over the ATM
network.
CBR (Constant Bit Rate) is used by connections that requires a static amount of bandwidth that is
avilable during the connection life time. This bandwidth is characterized by Peak Cell Rate (PCR).
Based on the PCR of the CBR traffic, specific cell slots are assigned for the VC in the schedule
table. The ATM always sends a signle cell during the CBR connection’s assigned cell slot.
VBR-rt (Varible Bit Rate real-time) is intended for real-time applications, such as compressed
voice over IP and video comferencing, that require tightly constrained delays and delay variation.
VBR-rt is characterized by a peak cell rate (PCR), substained cell rate (SCR), and maximun burst
rate (MBR).
VBR-nrt (Varible Bit Rate non-real-time) is intended for non-real-time applications, such as FTP,
e-mail and browsing.
PCR (Peak Cell Rate) in kbps: The maximum rate at which you expect to transmit data, voice and
video. Consider PCR and MBS as a menas of reducing lantency, not increasing bandwidth. The
range of PCR is 384kbps to 11392kbps
SCR (Substained Cell Rate): The sustained rate at which you expect to transmit data, voice and
video. Consider SCR to be the true bandwidth of a VC and not the lone-term average traffic rate.
The range of SCR is 384kbps to 11392kbps.
MBS (Maximum Burst Size): Refers to the maximum number of cells that can be sent at the peak
rate. The range of MBS is 1 cell to 255 cells.
Username : Enter the user name exactly as your ISP assigned.
Password: Enter the password associated with the user name above.
Password confirm: Enter the password again for confirmation.
Idle Time: When you don’t want the connection up all the time and specify an idle time on this field.
IP type: A static IP address is a fixed IP that your ISP gives you. A dynamic IP address is not fixed;
the ISP assigns you a differnet on each time you connect to the Internet.
Press Finish to finish setting.
The screen will prompt the parameters that will be written in NVRAM. Check the parameters before