ESR2(config)# router ospf log-adjacency-changes
ESR2(config)# router ospf 1
ESR2(config-ospf)# router-id 2.2.2.2
ESR2(config-ospf)# area 0.0.0.0
ESR2(config-ospf-area)# enable
ESR2(config-ospf-area)# exit
ESR2(config-ospf)# enable
ESR2(config-ospf)# exit
ESR2(config)#
ESR2(config)# interface loopback 1
ESR2(config-loopback)# ip address 2.2.2.2/32
ESR2(config-loopback)# ip ospf instance 1
ESR2(config-loopback)# ip ospf
ESR2(config-loopback)# exit
ESR2(config)#
ESR2(config)# interface gigabitethernet 1/0/1.10
ESR2(config-subif)# ip firewall disable
ESR2(config-subif)# ip address 10.10.10.2/30
ESR2(config-subif)# ip ospf instance 1
ESR2(config-subif)# ip ospf
ESR2(config-subif)# exit
ESR2(config)#
ESR2(config)# interface gigabitethernet 1/0/1.20
ESR2(config-subif)# ip firewall disable
ESR2(config-subif)# ip address 20.20.20.2/30
ESR2(config-subif)# ip ospf instance 1
ESR2(config-subif)# ip ospf
ESR2(config-subif)# exit
ESR2(config)#
ESR2(config)# system jumbo-frames
ESR2(config)# do commit
ESR2(config)# do confirm