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Data Link Switching Overview
304233-A Rev. 00
1-21
Figure 1-9. Primary SDLC Routers in Single-Switch DLSw Networks
Secondary SDLC Support
A Bay Networks router acting as a secondary device on an SDLC link can:
Support a single or multiple SDLC link communicating to an FEP or other
SNA host
Allow SNA devices attached to multiple remote routers to share a single
SDLC link to the FEP
Attach to the FEP directly (using a null modem cable) or using a leased line
Figure 1-10
illustrates DLSw single- and dual-switch networks where Bay
Networks routers serve as secondary SDLC nodes.
Bay Networks router
Token Ring
Bay Networks router
SDLC
Cluster controller
LLC2
LLC2 LLC2
Token Ring
Ethernet
Frame Relay
backbone
NetBIOS
server
Logical connection
SNA
processor
Frame Relay
(only)
DLS0003A
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