2. Web Server Interface
8300-A2-GB20-00
April 2003
2-31
Figure 2-28. ATM Virtual Channels Screen
The ATM Virtual Channels screen displays status information on the following
parameters listed below. The QoS Profile and Admin Status are configured or
changed on the Virtual Channel Details screen (
Figure 2-29
).
VPI
Virtual Path Identifier number.
VCI
Virtual Channel Identifier number.
Admin Status
Current Admin Status.
Values:
Up, Down, Testing
Operation Status
Current Operation Status.
Values:
Up, Down, Testing
Last Change
Time and date of the Last Change.
QOS Profile
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 Type
Encapsulation Type used. Default is Routed IP, which uses RFC 1483 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.