Zte ZXV10 W300 Quick Installation Manual page 24

ZXV10 W300 Quick Installation Manual
4. PVC parameter description
PVC: PVC (permanent virtual circuit) provides a permanent
logical connection between two terminals within a packet
network during the contract application period. PVC does
not require the call setup or clear procedure.
VPI: VPI (virtual path identifier) contains the first part of the
ATM routing address to identify the virtual path between
users or between user and ATM network.
VCI: VCI (virtual channel identifier) contains the second
part of the ATM routing address to identify the virtual
channel between users or between user and ATM network.
QoS: AMT QoS is the quality convention for information
transmission and sharing between network and user and
between the users communicated with each other on the
network. QoS provides three types of services:
UBR: It does not guarantee any available bandwidth. The user
can only use the unoccupied bandwidth. Data are transmitted
on the basis of "best-effort".
PCR: Peak cell rate, the maximum rate of sending cells.
SCR: Sustainable cell rate, the average cell transmission rate
in a long time
MBS: Maximum burst size. Specifies the maximum number
of cells allowed to be sent at the peak cell rate.
CDVT: Cell delay variation tolerance. Applicable to
time-sensitive services. It specifies the maximum cell delay
variation tolerance allowed between two sites.
Obtain PVC automatically: Auto-sensing permanent virtual
circuit
To create a new PPPoE connection, perform the following steps:
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CBR: Ensures to provide the user with the preset, fixed
bits of available bandwidth on the entire virtual circuit.
VBR: Suitable for the services allowing bursting traffic