Ericsson HM4x0 Reference Manual page 492

PPPoE CLI Commands
vbrrt
abr
qfc
17.36.4 Example
--> pppoe set transport pppoe3 qosclass abr
492
Variable Bit Rate Real-Time; non-
constant but predictable data transport
rate that uses Real-Time (RT). You
can specify the PCR, SCR, BT and
MBS for VBRRT traffic.
Available Bit Rate; non-constant and
unpredictable data transport rate that
provides ATM-layer feedback and flow
control.
QFC; ATM flow control protocol that
supports ABR.
2/1553-ZAT 759 94 Uen B – December 2005