HP 200 Series Services And Applications page 64

Bridging Service
Token Ring Solutions
ROUTER
PSN
ROUTER
ROUTER
Figure 4. Routing in a mixed-media environment permits communication between
all systems.
Bridging in Token Ring Environments
The bridging service on the HP routers includes source-routing bridging.
Source-routing bridging is used to connect token rings containing systems
that communicate using non-routable protocols such as IBM 3270 or
NetBIOS. Thus, the HP router, when configured for source-routing bridging,
can be used in any application that would otherwise be performed by an
IBM Source-Routing Bridge.
Source-Routing and Transparent Bridging
When bridging software is enabled, transparent bridging is always enabled.
Optionally, the bridge will also perform source-routing bridging. Bridges that
perform both types of bridging concurrently are referred to as source-
routing/transparent (SRT) bridges. Thus, when source-routing bridging is
enabled, an HP router can function as an SRT bridge.
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