ZyXEL Communications P-2612HW-F1 User Manual page 113

Table 18 Network > WAN > More Connections: Edit: Advanced Setup (continued)
LABEL
Peak Cell Rate
Sustain Cell Rate
Maximum Burst Size
MTU
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P-2612HW-F1 User's Guide
DESCRIPTION
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 Sustained 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 1483, the MTU is 65535.
Click Back to return to the previous screen.
Click Apply to save the changes.
Click Cancel to begin configuring this screen afresh.
Chapter 6 WAN Setup
113