HP 200 Series Services And Applications page 91

Token
HP Router
Ring
Figure 28. Transparent Meshed WAN Backbone Topology
Finally, figure 28 shows how TRNSB could be used in a meshed and transpar-
ently bridged WAN backbone. To the TRNSB, this topology is really not
different from that of figure 26. However, it demonstrates how TRNSB can
be used in a spanning tree environment. If the network in figure 28 had
mostly token ring SRB networks, the WAN circuit groups would more likely
be configured as source-routing links. This would work also. Please note
that with TRNSB functionality enabled, the WAN links must all be config-
ured as source routing, or all not source routing, but cannot be mixed.
Source-Routing Bridging
Transparent
WAN
Backbone
HP Router
TR
HP Router
Bridging Service
ER
ER
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