rs1/ipv4: show protocols all pb_6_dcn_as34916_1

pb_6_dcn_as34916_1 BGP --- start 2018-11-15 Connect

Description:    DCN 1
  BGP state:          Connect
    Neighbor address: 2001:7f8:64:225:0:3:4916:1
    Neighbor AS:      34916
  Channel ipv6
    State:          DOWN
    Table:          t_6_dcn_as34916_1
    Preference:     100
    Input filter:   (unnamed)
    Output filter:  (unnamed)
    Import limit:   50
      Action:       restart