User's Manual

Mobile WiMAX RAS SPI-2L10 System Description/Ed.00

2-7

The following figure shows an example in which the network dedicated to management

and the user domain network are operated separately using the VLAN function of the SPI-

2L10. In the figure below, the SPI-2L10 is connected to the ASN using a physical link and

supports communication with the two logically separated networks using two VLAN

interfaces.

Figure 2.1 Operating Networks Separately

Number of IP Addresses for a Backhaul Interface

The SPI-2L10 uses one IP address per carrier. Since the SPI-2L10 supports 2carrier, a total

of two IP addresses are needed. At this time, the IP addresses used by the two carriers

belong to a subnet.

The SPI-2L10 can operate the management network (OAM network) and the network for

user traffic separately. In this case, the SPI-2L10 requires one additional IP address for

interoperation with the WSM.

When the management network and the network for user traffic are not separated from each

other, no additional IP address is needed. One of the two IP addresses used by the SPI-2L10

is used for interoperation with the WSM.

Access

Network

Network for management Network for user traffic

WSM ACR

router router

VLAN

Interface 1

VLAN

interface 2

RAS