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IES-612-51 User’s Guide

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CHAPTER 55

Virtual Channel Commands

This chapter shows you how to use commands to configure virtual channels.

See Section 13.8 on page 115 for background information on virtual channels and ATM QoS.

55.1 Virtual Channel Command Input Values

The following table describes the values required in Virtual Channel commands. Other values

are discussed with the corresponding commands.

Table 142 Virtual Channel Command Input Values

LABEL DESCRIPTION

cdvt Cell Delay Variation Tolerance (CDVT) is the accepted tolerance of the

difference between a cell’s transfer delay and the expected transfer delay

(measured in number of cells). Possible values are 0~255 or * (means 0).

member-vci The VCI of the individual PVC that you are adding to a Permanent Virtual Circuit

(PVC). The subscriber’s device must create this PVC.

member-vpi The VPI of the individual PVC that you are adding to a PPVC. The subscriber’s

device must create this PVC.

pcr The Peak Cell Rate (150~300 000) is the maximum rate (measured in cells per

second) at which the sender can send cells.

portlist You can specify a single ADSL port <1>, all ADSL ports <*> or a list of ADSL

ports <1,3,5>. You can also include a range of ports <1,5,6~10>.

priority The priority level (0~7) assigned to PVC traffic. 7 is the highest priority.

vc|llc The type of encapsulation.

VC Mux is a type of encapsulation where, by prior agreement, each protocol is

assigned to a specific virtual circuit, for example, VC1 carries IP and VC2 carries

IPX.

LLC is a type of encapsulation where one VC carries multiple protocols with

each packet header containing protocol identifying information.

vcprofile, ds-

vcprofile, us-

vcprofile

The name of the virtual channel profile (up to 31 ASCII characters). You can

assign profiles for downstream and upstream virtual channels. You cannot

change the DEFVAL or DEFVAL_VC profiles.

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