IES-1000 User’s Guide

<scr/mcr>

=

The Sustained Cell Rate (scr) sets the average cell rate (long-term) that can be

 

 

transmitted. SCR applies with the rt-vbr and nrt-vbr traffic classes.

 

 

Minimum Cell Rate (mcr) is the minimum rate at which the sender can send cells.

 

 

MCR applies with the abr traffic class.0 to 300000 or * to meet port speed

<bt/nrm>

=

Burst Tolerance (bt) is the maximum number of cells that the port is guaranteed to

 

 

handle without any discards. BT applies with the rt-vbr and nrt-vbr traffic classes.

 

 

The Number of Resource Management (nrm) cells is the maximum number of

 

 

cells a source may send for each forward Resource Management cell. NRM

 

 

applies with the abr traffic class.0 to 255 or * (means 0)

The set vcp command creates a virtual channel profile.

The following example creates a virtual channel profile named gold that uses LLC encapsulation and AAL 5. It uses constant bit rate and has the maximum rate (peak cell rate) set to 300,000 cells per second. The acceptable tolerance of the difference between a cell’s transfer delay and the expected transfer delay (CDVT) is set to 5 cells.

192.168.1.1 adsl> set vcp gold llc aal5 cbr 300000 5

The following example creates a virtual channel profile named silver that uses VC encapsulation and AAL 5. It uses real time variable bit rate and has the maximum rate (peak cell rate) set to 3000,000 cells per second. The acceptable tolerance of the difference between a cell’s transfer delay and the expected transfer delay (CDVT) is set to 5 cells. The average cell rate that can be transmitted (SCR) is set to 250,000 cells per second. The maximum number of cells that the port is guaranteed to handle without any discards (BT) is set to 200.

192.168.1.1 adsl> set vcp silver vc aal5 rt-vbr 300000 5 250000 200

The following example creates a virtual channel profile named economy that uses LLC encapsulation and AAL 5. It uses unspecified bit rate and has the maximum rate (peak cell rate) set to 50,000 cells per second. The acceptable tolerance of the difference between a cell’s transfer delay and the expected transfer delay (CDVT) is set to 100 cells.

192.168.1.1 adsl> set vcp economy llc aal5 ubr 50000 100

26.2.2Delete VCP Command

Syntax:

192.168.1.1 adsl> delete vcp <profile name>

where

<profile name> =

The name of the virtual channel profile (up to 31 ASCII characters). You cannot

 

delete the DEFVAL profile.

The delete vcp command deletes the specified virtual channel profile. You cannot delete a virtual channel profile that is assigned to any of the network module’s DSL channels. Assign a different profile to any DSL channels that are using the profile that you want to delete, and then you can delete the profile.

The following example deletes the silver virtual channel profile.

192.168.1.1 adsl> delete vcp silver

26-2

Virtual Channel Management