DSL-G2452GR  AC1200   MU-MIMO   Wireless   Dual   Band
VDSL2 Router with ADSL2+/3G/LTE/Gigabit Ethernet WAN
Support, 2 FXS Ports and USB Port
User Manual
Configuring via Web-based Interface
Parameter Description
• CBR  (Constant   Bit   Rate):   This   service   is   used   for 
applications that require a constant data  rate.  It  is  mostly 
used  for  transferring   uncompressed   audio  and   video,   e.g. 
videoconferencing,   interactive   audio   (telephony), 
audio/video   distribution  (television,  distance  education,   e-
shops),   and   retrieval   (video-on   demand,   audio   libraries). 
When   you   select   this  value  from  the  drop-down   list,  the 
Peak cell rate field is displayed. Specify a required value 
(in cells per second).
• Non   Realtime  VBR  (Non-Real-time   Variable   Bit   Rate): 
This   service   can   be   used   for   transferring   data   that   have 
critical response-time requirements, e.g. air ticket booking, 
bank transactions, and process monitoring. When you select 
this   value  from  the  drop-down  list,  the  Peak  cell  rate, 
Sustainable cell rate, and Maximum burst size fields 
are displayed. Specify required values.
• Realtime VBR (Real-time Variable Bit Rate): This service 
is  used   for   delay-sensitive   applications   such   as  real   time 
video. The Rt-VBR provides higher network flexibility than 
the CBR service. When you select this value from the drop-
down list, the Peak cell rate, Sustainable cell rate, and 
Maximum   burst   size  fields   are   displayed.   Specify 
required values.
Page 93 of 358