Cisco MGX 8230 Especificaciones descargar pdf (Pagina 189)

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Cisco MGX 8230 Edge Concentrator Installation and Configuration

Release 1.1.31, Part Number 78-11215-03 Rev. B0, May 2001

Chapter 6 Card and Service Configuration

ATM Universal Service Module (AUSM)

Step 4 Use cnfconstdabr to configure the parameters for a standard ABR (TM 4.0 compliant).

cnfconstdabr <Chan_Num ABRType> <mcr> <pcr> <icr> <rif> <rdf> <nrm> <trm> <tbe> <frtt>

<adtf> <cdf>.

Please note the following:

• Standard ABR is a connection-level feature that requires the Rate Control Feature to be enabled on

the card.

• Virtual Source/Virtual Destination behavior (VS/VD) is not supported.

• Standard ABR does not support Explicit Rate (ER) marking of RM cells.

• cnfconabrrates can be used to modify the rates:

Usage: cnfconabrrates <Port.Vpi.Vci/Chan_Num> <mcr> <pcr> <icr>

• cnfconabrparams can be used to modify the parameters:

Usage: cnfconabrparams <Port.Vpi.Vci/Chan_num> <ABRType> <rif> <rdf> <nrm> <trm>

• rif and rdf values for a Standard ABR connection need to be configured to be <= PCR for the

connection.

• port.vpi.vci identifies the connection.

• enable is the enabled/disable for the ForeSight feature:

1=disable, 2=enable.

• fgcra_enabl

is the enabled/disable for the Frame-based generic cell rate

algorithm: 1=disable, 2=enable.

• ibs is the initial burst size in the range 0–5000 cells.

• pcr is the peak cell rate. Without IMA, the range is:

–

T1, 10–3622

–

E1, 10–4528

–

clear E1, 10–4830

For IMA, multiply the line rate by the number of links.

• mcr is the minimum cell rate. Without IMA, the range is:

–

T1, 0–3622

–

E1, 0–4528

–

clear E1, 0–4830

For IMA, multiply the line rate by the number of links.

• icr is the initial cell rate. Without IMA, the range is as follows:

–

T1, 0–3622

–

E1, 0–4528

–

clear E1, 0–4830

For IMA, multiply the line rate by the number of links.

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