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3. VT100 Interface
QOS Prof
Current QOS profile in use. The default profile is 0 (zero), which is used for UBR
traffic.
When QOS profile 0 is used, the available bandwidth will be equally shared among
all configured channels. QOS 0 cannot be modified.
If one virtual channel requires more bandwidth than others, configure another
QOS profile and set its peak cell rate (PCR) to the required value. However, the
sum of the PCRs of all configured channels must be no greater than the available
AAL5 bandwidth. The available PCR on an SHDSL-ATM link with a line rate of
2304 kbps is about 5433 cells per second. When oversubscription is used, the
sum of the PCRs for VBR or UBR channels may exceed the AAL5 bandwidth.
Encapsulation
Encapsulation Type used. Default is Routed IP, which uses RFC1483 LLC
encapsulation. If Serial PPP is selected, PPP traffic received from the Serial port
will be sent over the ATM port using RFC 1483 PPPoA encapsulation. There can
be only one VCI configured for Serial PPP.
Serial HDLC is similar to Serial PPP except, when you select Serial HDLC, data is
encapsulated transparently. Any type of HDLC traffic will be supported. Because
this is not a standard encapsulation, an 8300 Endpoint must reside at each end of
the connection. Even if Serial HDLC or Serial PPP encapsulation is configured,
routed IP traffic received on this channel will be forwarded to the IP Gateway, if IP
Gateway is configured.
Traffic Type
Traffic type used. Default is ubr.
Status
Current status of the VCC.
A d d i n g a N e w V i r t u a l C h a n n e l
To create a new virtual channel, enter the desired VPI/VCI values in the
appropriate field(s) at the top of the screen and select the Add Virtual Channel
prompt.
If the newly added virtual channel is within the maximum VCC parameter, it will be
activated immediately.
NOTICE:
Select a listed VPI to bring up the ATM Virtual Channel Details Screen
(Figure
above.
3-34
Values: Serial PPP, Routed IP, Serial HDLC
Values: CBR, VBR, UBR
Values: active, notinService, notReady, createAndGo, createAndWait,
destroy
When adding a Virtual Channel, the value for VPI may be 0 and
above, but for VCI, must be 32 and above.
3-31) where you can configure or change the parameters described
April 2003
8300-A2-GB20-00
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