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562
C
HAPTER
19: O
PEN
S
HORTEST
P
ATH
F
IRST
(OSPF)
Fields in the IP OSPF Link State Data Summary Display
Field Description
LS Age Time (in seconds) since LSA was originated
LS Seq Sequence number of the LSA (used to detect older
duplicate LSAs)
LSID
Type 3
— Destination network’s IP address
Type 4
— ASBR’s OSPF router ID
Metric Cost to reach the network
Network mask
For
Type 3
— destination network’s IP address mask
For
Type 4
— Not used, must be
0 (--)
Router ID Originating router ID