Zhone Technologies 800 - Manual (Page 114)

5-8 IMACS System Release 5.1.6 Server Cards
Model No. Running Head Fully Meshed vs. Partially Meshed IPR Card
5.5.2 Partially Meshed Frame Relay Network (Same IP Network)
In this topology, router E (and all the IP nodes behind it) will not reach routers A, B and C
(therefore, all the nodes behind them). This is because there is no direct path between E and
A. In addition, all routing updates from router A will not be heard on routers D and E, and
therefore routers D and E will have no idea about IP nodes behind router A (as well as B and
C). In the real world, IP is rarely fully meshed. Figure 5-6 shows a partially meshed frame
relay network without full connectivity with all the nodes on the same IP network.
Figure 5-6. Partially Meshed Frame Relay Network without Full Connectivity (Same IP
Network)
Router A
Router B
Router C
Router D
Router E