
Configuring DLSw Services
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Secondary SDLC Limitations
Bay Networks routers configured as secondary SDLC link stations function as
PU 2.0 devices only.
Secondary SDLC Configuration
You can configure DLSw interfaces and SDLC local devices to perform either
primary or secondary operations using the DLSw Mode parameter. Refer to
Chapter 4 for information on the DLSw Mode parameter.
Enhanced Synchronous Pass-Through
Using primary and secondary SDLC services, a network can transport existing
SDLC traffic over a router-based topology that:
• Enables existing SDLC traffic to use a high-speed multiprotocol backbone
network
• Simplifies the migration to a router-based network, by incorporating SDLC
traffic into the multiprotocol backbone without converting the existing
endstations
• Locally acknowledges of the SDLC protocol at each side of the router-based
network, eliminating polling and acknowledgment traffic from the network
backbone
• Allows high-speed links into the FEP, improving response time
Figure 1-9 illustrates locally acknowledged synchronous pass-through using
single and dual switch services.
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