The following example provides the input required to configure summarization of the three area topology as displayed in OSPF Summarization Topology:
ABR1(rw)->configure ABR1(rw-config)->router ospf 1 ABR1(rw-config-ospf-1)->area 1 range 2001:1::0/64 ABR1(rw-config-ospf-1)->exit ABR1(rw-config)->
ABR2(rw)->configure ABR2(rw-config)->router ospf 1 ABR2(rw-config-ospf-1)->area 2 range 2001:2::0/64 ABR2(rw-config-ospf-1)->area 2 range 2001:2:4::0/64 not-advertised ABR2(rw-config-ospf-1)->exit ABR2(rw-config)->
ABR3(rw)->configure ABR3(rw-config)->router ospf 1 ABR3(rw-config-ospf-1)->area 3 range 2001:3::0/64 ABR3(rw-config-ospf-1)->exit ABR3(rw-config)->