February 2000
Intermediate to advanced
387 pages
7h 36m
English
Content preview from IP Routing Protocols
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FLOODING ADVERTISEMENTS
Advertising is performed within the routing domain by flooding (called reliable flooding in OSPF) the LSAs to all routers. In Figure 6-4(a), router 3 has decided to send LSAs to its neighbor routers (routers 1, 2, 5, and 6). The arrows in the figure symbolize the LSA transmissions. This example is for routers connected to each other with point-to-point (nonbroadcast) links.
Figure 6-4. Flooding Advertisements
Remember that the cause of these updates is that router 3 wished to inform its neighbors about a change at router 3, or to refresh the LSA information. The updates are performed with LSA packets.
When these neighbors ...
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