hostname rt4 log file isisd.log ! ! debug isis events ! debug isis route-events ! debug isis spf-events ! debug isis sr-events ! debug isis lsp-gen ! interface lo ip router isis 4 ipv6 router isis 4 isis passive ! interface eth-rt2 ip router isis 2 ipv6 router isis 2 isis network point-to-point isis hello-interval 1 isis hello-multiplier 10 ! interface eth-rt5 ip router isis 4 ipv6 router isis 4 isis network point-to-point isis hello-interval 1 isis hello-multiplier 10 ! interface eth-rt6 ip router isis 4 ipv6 router isis 4 isis network point-to-point isis hello-interval 1 isis hello-multiplier 10 ! router isis 2 net 49.0002.0000.0000.0004.00 lsp-gen-interval 2 topology ipv6-unicast ! router isis 4 net 49.0004.0000.0000.0004.00 lsp-gen-interval 2 topology ipv6-unicast !