The TCP/IP Guide  9  TCP/IP Lower-Layer (Interface, Internet and Transport) Protocols (OSI Layers 2, 3 and 4)       9  TCP/IP Internet Layer (OSI Network Layer) Protocols            9  TCP/IP Routing Protocols (Gateway Protocols)                 9  TCP/IP Interior Routing Protocols (RIP, OSPF, GGP, HELLO, IGRP, EIGRP)                      9  Open Shortest Path First (OSPF)

OSPF General Operation and Message Types 1 2 3 4 5 6 7 Other Interior Routing Protocols

Link State Acknowledgment Message Format

These messages have a Type value of 5 in the header. They then contain a list of LSA headers corresponding to the LSAs being acknowledged, as shown in Table 131 and Figure 189.

Figure 189: OSPF Link State Acknowledgment Message Format

OSPF General Operation and Message Types 1 2 3 4 5 6 7 Other Interior Routing Protocols

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