ZyXEL Communications P-660HW-Tx v3 Series User Manual page 112

Chapter 6 WAN Setup
Table 23 Network > WAN > More Connections: Edit: Advanced Setup (continued)
LABEL
ATM QoS Type
Peak Cell Rate
Sustain Cell Rate
Maximum Burst Size
MTU
MTU
Packet Filter
Incoming Filter Sets
Protocol Filter
Generic Filter
Outgoing Filter Sets
Protocol Filter
Generic Filter
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DESCRIPTION
Select CBR (Continuous Bit Rate) to specify fixed (always-on)
bandwidth for voice or data traffic. Select UBR (Unspecified Bit
Rate) for applications that are non-time sensitive, such as e-mail.
Select VBR-nRT (Variable Bit Rate-non Real Time) or VBR-RT
(Variable Bit Rate-Real Time) for bursty traffic and bandwidth
sharing with other applications.
Divide the DSL line rate (bps) by 424 (the size of an ATM cell) to
find the Peak Cell Rate (PCR). This is the maximum rate at which
the sender can send cells. Type the PCR here.
The Sustain Cell Rate (SCR) sets the average cell rate (long-term)
that can be transmitted. Type the SCR, which must be less than
the PCR. Note that system default is 0 cells/sec.
Maximum Burst Size (MBS) refers to the maximum number of
cells that can be sent at the peak rate. Type the MBS, which is
less than 65535.
The Maximum Transmission Unit (MTU) defines the size of the
largest packet allowed on an interface or connection. Enter the
MTU in this field.
For ENET ENCAP, the MTU value is 1500.
For PPPoE, the MTU value is 1492.
For PPPoA and RFC, the MTU is 65535.
Select the protocol filter(s) to control incoming traffic. You may
choose up to 4 sets of filters.
You can configure packet filters in the Packet Filter screen. See
Chapter 12 on page 219
Select the generic filter(s) to control incoming traffic. You may
choose up to 4 sets of filters.
You can configure generic filters in the Packet Filter screen. See
Chapter 12 on page 219
Select the protocol filter(s) to control outgoing traffic. You may
choose up to 4 sets of filters.
You can configure protocol filters in the Packet Filter screen. See
Chapter 12 on page 219
Select the generic filter(s) to control outgoing traffic. You may
choose up to 4 sets of filters.
You can configure generic filters in the Packet Filter screen. See
Chapter 12 on page 219
Click this to return to the previous screen without saving.
for more details.
for more details.
for more details.
for more details.
P-660HW-Tx v3 Series User's Guide