pbb-ketchup: show protocols all ospf_ipv6

ospf_ipv6 OSPF ospf6 up 2021-10-11 09:24:15 Running

Channel ipv6
    State:          UP
    Table:          ospf6
    Preference:     150
    Input filter:   ACCEPT
    Output filter:  ACCEPT
    Routes:         28 imported, 4 exported, 28 preferred
    Route change stats:     received   rejected   filtered    ignored   accepted
      Import updates:            414          0          0          0        414
      Import withdraws:           49          0        ---          0         49
      Export updates:            419        414          0        ---          5
      Export withdraws:           50        ---        ---        ---          1