66
Figure 30 LSAck packet format
LSA header format
All LSAs have the same header.
Figure 31 LSA header format
Major fields of the LSA header are as follows:
• LS age—Time, in seconds, elapsed since the LSA was originated. An LSA ages in the LSDB (added
by 1 per second), but does not age during transmission.
• LS type—Type of the LSA.
• Link state ID—The contents of this field depend on the LSA's type.
• LS sequence number—Used by other routers to judge new and old LSAs.
• LS checksum—Checksum of the LSA except the LS age field.
• Length—Length in bytes of the LSA, including the LSA header.
LSAs formats
• Router LSA
...
To Next Page
Loading...
Need help?
General
