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Workgroup Remote Access Switch 33
T
HE
C
YBER
SWITCH
System Components
The variety of network interfaces allows the installation of a wide range of devices at remote sites.
As illustrated below, you can simultaneously choose bridges, routers, or host devices based on the
specific remote site requirements.
In the diagram above, the LAN Interface 128.1.1.1 is attached to the IP network 128.1.0.0. The WAN
Direct Host Interface represents LAN Interface 128.1.1.1 and allows the remote IP hosts to share the
network address space of 128.1.0.0. The WAN Interface 192.1.1.1 is logically attached to the IP
network 192.1.1.0. The RLAN Interface 100.1.1.1 is logically attached to the IP network 100.1.1.0.
SYSTEM COMPONENTS
The major components of the CyberSWITCH are:
• System hardware consisting of a platform and an administration port provided by the
platform.
• Four main categories of system software:
The boot device gains control at power-up. It runs diagnostics, downloads new versions of
operational software, and prepares the host processor for execution of operational software.
The flash file system stores a compressed image of operational software and I/O system
software. It also stores other necessary files for configuration and information storage.
The operational software provides system functionality, such as download and initialization of
the I/O subsystem. The I/O subsystem handles LAN I/O.
• Remote ISDN devices which interoperate with the system and allow device access to network
resources.
More detailed descriptions of system software and hardware are included in the next two chapters.
The following section describes remote ISDN devices.
128.1.1.2
Host
128.1.1.3
Host
192.1.1.2
Host
(or Router)
192.1.1.3
Router
(or Host)
100.1.1.2
Remote
Bridge
Remote
Bridge
100.1.1.3
WAN Direct Host
Interface
LAN Interface 128.1.1.1
RLAN Interface
100.1.1.1
WAN
Interface
192.1.1.1
ISDN
B25B27
B26B28
WORKGROUP REMOTE ACCESS SWITCH
B29
E1 ONLYB-CHANNELS
LAN
10BASE-TRXTXSERVICE
B31
B30L1
B21B23
B22B24
B17B19
B18B20
B13B15
B14B16
E1
D
T1
D
B9B11
B10B12
B5B7
B6B8
B1B3
B2B4
POWER