3com 8807 사용자 가이드
Troubleshooting OSPF Faults
337
Figure 86 OSPF areas
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The backbone area (Area 0) cannot be configured as the stub area and the
virtual link cannot pass through the stub area. That is, if a virtual link has been
set up between RTB and RTC, neither Area1 nor Area0 can be configured as a
stub area. In the figure above, only Area 2 can be configured as the stub area.
virtual link cannot pass through the stub area. That is, if a virtual link has been
set up between RTB and RTC, neither Area1 nor Area0 can be configured as a
stub area. In the figure above, only Area 2 can be configured as the stub area.
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Routers in the stub area cannot receive external routes.
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The backbone area must guarantee the connectivity of all nodes.
RTA
RTB
RTC
RTD
area0
area1
area2
RTA
RTB
RTC
RTD
area0
area1
area2