Application Examples
Page 28-9
Combined Frame Relay with ISDN Backup
In a typical configuration, the WSX occupies either a slot in a switch chassis or a submodule
on an OmniAccess 512. Because it is compatible with Omni Switch/Router any-to-any
switching and VLAN architecture, you can switch other topologies in the LAN to Frame Relay
or PPP. The WSX connects to a DSU/CSU or T1 multiplexer through a serial cable. The
following diagram shows a typical WSX setup using a 56 kbps Frame Relay line (up to 2 Mbps
access rates are supported)
Refer to the Chapter 29, “Managing Frame Relay,” and Chapter 56, “Backup Services,” for
details on how to implement this configuration.34
.
WSX
56 kbps Line
DSU/CSU
Serial
Omni Switch/Router
Frame Relay
Network
ISDN
Network
DTE-DCE Cable
PPP
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