The different types of packets sent by OSPF routers are contained in the common 24-byte OSPF header. While delving into the specifics of the OSPF header is beyond the scope of the ROUTE exam, it is still important to have a basic understanding of the fields contained within this header and what they are used for. Figure 3-7 illustrates the common 24-octet OSPF header:
Fig. 3-7. The OSPF Packet Header
The 8-bit Version field specifies the . . .
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