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 7-9in 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)

Disabled (Configure following parameters)

Enabled

SCR

MBS

Policing (1, 2, 3, 4, or 5) 1 VC QDepth 2

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

1For policing prompt:

1 = VBR.1

2 = VBR.2

3 = VBR.3

4 = PCR policing only

5 = policing off

Default values used for: SCR, MBS, etc.

2VC 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

ATM Connections 7-21

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Cisco Systems 8600 Series manual Atfst Connection Prompt Sequence