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1-10 About the Vanguard 342
Target Applications
IP and Serial Protocols over Frame Relay
Introduction The Vanguard 342 supports multi protocol encapsulation of IP traffic and serial
protocols over frame relay as specified by RFC 1490. As shown in Figure 1-3, a
SNA cluster controller connects to a serial port on the Vanguard 342 and the Ethernet
LAN connects to the 10/100BaseT Ethernet port. The Vanguard is fully interoperable
with third party routers via RFC 1490.
Figure 1-3. IP and Serial Protocols over Frame Relay
Frame
Relay
FEP
Ethernet
Ethernet
Vanguard 342
Cluster Controller
Terminals
Host
Third Party
Router
Third Party
Router