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(DR's IP)
11.11.1.1 11.11.4.1 0 2147483649 1 6777215
11.11.1.3 14.14.14.1 15 2147483705 1 53384
Summary Network LSAs
LS ID ADV rtr Age Sequence Cost Checksum
(Net's IP)
11.11.4.255 11.11.4.1 0 2147483677 1 6777215
ASBR Summary LSAs
LS ID ADV rtr Age Sequence Cost Checksum
(ASBR's Rtr ID)
AS External LSAs
LS ID Route type ADV rtr Age Sequence Cost Checksu Forw addr RouteTag
(Ext Net's IP)
Displayed information Explanation
OSPF router ID The ID of the layer3 switch.
Area 1>>>>>>>> Area ID: 0 Represent the LSA database information
from area 0 to area 0.
Router LSAs Route LSA
Network LSAs Network LSA
Summary Network LSAs Summary network LSA
ASBR Summary LSAs Autonomous system exterior LSA
（6）show ip ospf interface
The “show ip ospf interface” command can be used to display the OSPF protocol
information for the interface.
For example, displayed information can be:
Switch#show ip ospf interface vlan 1
IP address: 11.11.4.1 Mask: 255.255.255.0 Area: 0
Net type: BROADCAST cost: 1
State: IBACKUP Type: BDR
Priority: 1 Transit Delay: 1
DR: 11.11.4.2 BDR: 11.11.4.1
Authentication key:
Timer: Hello: 10 Poll: 0 Dead: 40 Retrans: 5
Number of Neigbors: 1 Nubmer of Adjacencies: 1
Adjacencies:
1: 11.11.4.2
Displayed information Explanation
IP address Interface IP address
Mask Interface mask.