In the following example, LLS has been enabled on GigabitEthernet interface 1/1/0 and disabled on GigabitEthernet interface
2/1/0:
interface gigabitethernet1/1/0
ip address 10.2.145.2 255.255.255.0
no ip directed-broadcast
ip ospf message-digest-key 1 md5 testing
ip ospf lls
!
interface gigabitethernet2/1/0
ip address 10.1.145.2 255.255.0.0
no ip directed-broadcast
ip ospf message-digest-key 1 md5 testing
!
ip ospf lls disable
interface Ethernet3/0
ip address 10.3.145.2 255.255.255.0
no ip directed-broadcast
!
router ospf 1
log-adjacency-changes detail
area 0 authentication message-digest
redistribute connected subnets
network 10.0.0.0 0.255.255.255 area 1
network 10.2.3.0 0.0.0.255 area 1
In the following example, the show ip ospf interface command has been entered to verify that LLS has been enabled for GigabitEthernet interface 1/1/0 and disabled for GigabitEthernet
interface 2/1/0:
Router# show ip ospf interface
GigabitEthernet1/1/0 is up, line protocol is up
Internet Address 10.2.145.2/24, Area 1
Process ID 1, Router ID 10.22.222.2, Network Type BROADCAST, Cost: 10
Transmit Delay is 1 sec, State BDR, Priority 1
Designated Router (ID) 10.2.2.3, Interface address 10.2.145.1
Backup Designated router (ID) 10.22.222.2, Interface address 10.2.145.2
Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
oob-resync timeout 40
Hello due in 00:00:00
! Supports Link-local Signaling (LLS)
Index 1/1, flood queue length 0
Next 0x0(0)/0x0(0)
Last flood scan length is 2, maximum is 8
Last flood scan time is 0 msec, maximum is 0 msec
Neighbor Count is 1, Adjacent neighbor count is 1
Adjacent with neighbor 10.2.2.3 (Designated Router)
Suppress hello for 0 neighbor(s)
GigabitEthernet2/1/0 is up, line protocol is up
Internet Address 10.1.145.2/16, Area 1
Process ID 1, Router ID 10.22.222.2, Network Type BROADCAST, Cost: 10
Transmit Delay is 1 sec, State BDR, Priority 1
Designated Router (ID) 10.2.2.3, Interface address 10.1.145.1
Backup Designated router (ID) 10.22.222.2, Interface address 10.1.145.2
Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
oob-resync timeout 40
Hello due in 00:00:04
! Does not support Link-local Signaling (LLS)
Index 2/2, flood queue length 0
Next 0x0(0)/0x0(0)
Last flood scan length is 2, maximum is 11
Last flood scan time is 0 msec, maximum is 0 msec
Neighbor Count is 1, Adjacent neighbor count is 1
Adjacent with neighbor 45.2.2.3 (Designated Router)
Suppress hello for 0 neighbor(s)
GigabitEthernet3/1/0 is up, line protocol is up
Internet Address 10.3.145.2/24, Area 1
Process ID 1, Router ID 10.22.222.2, Network Type BROADCAST, Cost: 10
Transmit Delay is 1 sec, State BDR, Priority 1
Designated Router (ID) 10.2.2.3, Interface address 10.3.145.1
Backup Designated router (ID) 10.22.222.2, Interface address 10.3.145.2
Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
oob-resync timeout 40
Hello due in 00:00:07
! Supports Link-local Signaling (LLS)
Index 3/3, flood queue length 0
Next 0x0(0)/0x0(0)
Last flood scan length is 2, maximum is 11
Last flood scan time is 0 msec, maximum is 0 msec
Neighbor Count is 1, Adjacent neighbor count is 1
Adjacent with neighbor 10.2.2.3 (Designated Router)
Suppress hello for 0 neighbor(s)
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