64
‘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
;
read PVC settings for channel 4
>
ppp 5 pvc 0
;
remove any PVC settings from
channel 5
16.
<channel>
qos
Syntax:
<channel> qos [cbr|ubr] [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 established UBR.
Example:
>
ppp 3 qos cbr pcr 10000
;
set channel 3 to be CBR limited
at 10000 cells/sec
17.
<channel>
remoteip
Syntax:
<channel> remoteip [<ipaddress>]
Description:
If a PPP link is established using IPCP, this call causes the channel to provide the given IP address
to the remote end of the connection. PPP will refuse to complete the connection if the other end will
not accept this. This is normally used for channels on which the remote party dials in, to allocate
the IP address to that remote party. Call with no argument to find the current setting.
Call with 0.0.0.0 to remove any setting. This is the default state.
Configuration saving saves this information.
18.
<channel>
svc
Syntax:
<channel> svc listen [ip|mac]
<channel> svc addr <addr> [ip|mac]
<channel> svc none
Description:
Specify that the VC for a PPP channel should be an SVC (i.e. created by signaling). This can either
be by listening for an incoming call, or by making an outgoing call to a specified ATM address.
The outgoing call or listen occurs immediately. If the call fails it will be retried after a few seconds.
In the PPP state machine, providing a connection of this form causes the channel to be ‘up’ or
‘down’. Note that
enable
must also be used, to allow the link to become operational. Outgoing and
incoming UNI signaling calls are identified by a BLLI value that identifies PPP. (Aside: A BLLI of
length 3 bytes is used, hex values 6B, 78. C0.) If the channel is already attached to an SVC or PVC
then it is closed, and re-opened with the new settings. If it cannot, it remains closed. If a single
argument
none
is supplied, any current connection is torn down. This is equivalent to
pvc none
on
the channel. 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. Providing an SVC setting unsets any PVC setting. See the
pvc
command.
Configuration saving saves this information. By default a channel has no connection information.
Example:
>
ppp 3 svc
47.00.83.01.03.00.00.00.00.00.00.00.00.00.00.20.2b.00.03.0b.00
>
ppp 4 svc listen
;
listen for incoming call
>
ppp 7 svc none
;
tear down connection, remove setting
