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Configuring DLSw Services
1-8 114063 Rev. A
Figure 1-3 illustrates a network using adjacent routers, each performing single-
switch conversion. Between single switch routers, the LLC2 protocol is used.
Figure 1-3. Bay Networks Adjacent Single-Switch Routers
Dual-Switch Services
DLSw dual-switch services allows SNA and NetBIOS traffic to share a
multiprotocol backbone. The DLSw standard specifies TCP/IP as the standard
transport mechanism for SNA and NetBIOS across an internetwork.
DLSw dual-switch services uses TCP/IP between routers, unlike adjacent single-
switch routers using LLC2. DLSw dual-switch services provide
IP routing, permitting delivery over any available path
TCP services, providing reliable data delivery, reduced network overhead, and
flow control mechanisms to manage traffic
LLC 2 LLC 2
LLC 2 or SDLC
Bay Networks Router
Token Ring
Bay Networks Router
SDLC
Cluster Controller
LLC
LLC2 LLC2
Token Ring
Ethernet
Frame Relay
Backbone
NetBIOS
Server
Logical Connection
SNA
Processor
Frame Relay
(Only)
DSW0003A
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