Heritage Series ADSL Bridge/ Router

7-47

Command Sets for Command Line Interface

driver. Normal limits are 0 only for port, 0 only for VPI, 1..1023 for VCI. If a single argument none is supplied, any current connection is torn down. This is equivalent to svc none on the channel. In the PPP state machine, providing a link of this form causes the link to be ‘up’. Note that enable must also be used, to allow the link to become operational. The ip or mac indicates which form of data is transported over the connection: one of IP data (controlled by the IPCP protocol), or MAC data (for BCP). If neither is provided, ip is assumed. If the channel is not linked to an interface, and the channel is for IP data, the channel is linked to interface 1. If the channel is not linked to an interface, and the channel is for MAC data, the channel is linked to interface 2. Providing a PVC setting unsets any SVC setting. See the svc command. It is possible for a PVC to become ‘down’ in the PPP state machine even though the PVC is still there, for instance due to an authentication failure. If in this state, an incoming packet will cause the PPP state machine to go ‘up’. If listen is specified then this is the server end of a PVC. It will not send out PPP Configure Requests until it first receives a packet over the PVC. When a connection is torn down it goes returns to this state. Use the info command to read this information.

Configuration saving saves this information. By default a channel has no connection information.

Example:

> ppp 3

pvc 3

32

;set channel 3 to be (VPI=3,VCI=32)

> ppp

4

pvc

0

 

;read PVC settings for channel 4

> ppp

5

pvc

 

;remove any PVC settings from

 

 

 

 

 

channel 5

16.<channel> qos

Syntax:

<channel> qos [cbrubr] [pcr <pcr-tx> [<pcr-rx>]]

Description:

Specify that the VC for a PPP channel should be Constant Bit Rate or Unspecified Bit Rate, and (optionally for UBR) give a Peak Cell Rate for the connection. If two values are specified then they are transmit and receive PCRs respectively. If called while not attached to a VC then the settings are saved for use when a VC is created. If the channel is already attached to a VC then it is closed, and re-opened with the new values. If it cannot be reopened, it remains closed. Configuration saving saves this information. By default channels are

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IBM Heritage Set channel 3 to be VPI=3,VCI=32, Read PVC settings for channel, Remove any PVC settings from, Channel
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Heritage specifications

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