log file isisd.log ! hostname rt3 ! password 1 ! ! debug isis events ! debug isis route-events ! debug isis spf-events ! interface lo ip router isis 1 ipv6 router isis 1 isis passive ! interface eth-rt1 ip router isis 1 ipv6 router isis 1 isis hello-multiplier 10 isis network point-to-point isis bfd ! interface eth-rt4 ip router isis 1 ipv6 router isis 1 isis hello-multiplier 10 ! router isis 1 lsp-gen-interval 2 net 49.0000.0000.0000.0003.00 is-type level-1 !