User Guide
IPico™ WN400 Integrated Access Device
User Guide © 2001 Lucid Voice
16
LAN Network Mask.
The mask defines the address space assigned to
your LAN segment. This mask should match the one used by other
devices on your LAN.
Master/Slave.
You can assign a device to be a Master or a Slave by
selecting Device Type. In a point-to-point topology, one IP
ico
must be the
Master and the other must be the Slave.
Note:
Changes to the Master/Slave configuration will also change the
WAN IP address, the default gateway, and the leading digits
settings of the device.
Quality of Service.
Quality of Service ensures that voice traffic over
the network is given priority over data traffic. You can control the amount
of bandwidth that you would like to reserve for voice and data traffic over
the WAN link.
Outbound CIR.
This parameter allows you to limit the total amount of
bandwidth that flows from the IP
ico
WAN interface to the wireless link.
You should assign a value that matches the true link capacity (throughput)
while considering the fact that the traffic usually flows in both directions,
uplink and downlink. For example, a wireless link of 11 Mbps can
normally deliver 8 Mbps (throughput). Since the link is usually
symmetrical, you should consider traffic of 4Mbps in each direction. In
this case, you should enter the value 4000. In cases where no limitation is
required, put ‘0’ (zero) or the word ‘unlimited’.
Data CIR.
This parameter sets the amount of data (not voice) traffic that
flows from the IP
ico
WAN interface to the wireless link. This value must
be less than the Outbound CIR value, or ‘unlimited’ if the Outbound
CIR is ‘unlimited’. The difference between the Data CIR and the
Outbound CIR is that the Data CIR limits the amount of bandwidth for
voice over the link. Consider the fact that a G.729a call requires 13Kbps,
including overhead, and leave an adequate margin for the required
simultaneous voice calls, as shown in the following equation:
O u t b o u n d C I R – D a t a C I R Š n * 1 3
