ATM Connections 7-21
ATM Connection Configuration
An ATFST connection is a frame relay to ATM connection that is configured as an ABR connection
with ForeSight. ForeSight congestion control is automatically enabled when connection type ATFST
is selected. A number of the ATM and frame relay connection parameters are mapped between each
side of the connection.
The parameters for an ATFST connection are shown in Figure 7-9 in the sequence in which they
occur during the execution of the addcon command.
Figure 7-9 ATFST Connection Prompt Sequence
ATFST
PCR(0+1)
%Util
MCR
CDVT(0+1)
FCES (Flow Control External Segment, yes/no) (same as BCM)
Default Extended Parameters (enable/disable)
For policing prompt:
1 = VBR.1
2 = VBR.2
3 = VBR.3
4 = PCR policing only
5 = policing off
VC QDepth maps to VC Queue max for frame relay.
EFCI maps to ECN for frame relay.
IBS maps to C max for frame relay.
Note: FBTC (Frame based traffic control - AAL5, same
as FGCRA) is automatically set to yes.
S6164
Enabled
Default values used
for: SCR, MBS, etc.
Disabled
(Configure
following
parameters)
SCR
MBS
Policing (1, 2, 3, 4, or 5)
VC QDepth
CLP Hi
CLP Lo/EPD
EFCI
ICR
ADTF (same as ICR TO)
Trm (same as Min. Adjust)
RIF (same as Rate up)
RDF (same as Rate down)
IBS
1
2
1
2
