rs2/ipv4: show protocols all pb_6_allnet_as20722_1

pb_6_allnet_as20722_1 BGP --- start 2019-03-18 Connect

Description:    Allnet 1
  BGP state:          Connect
    Neighbor address: 2001:7f8:64:225:0:2:722:1
    Neighbor AS:      20722
  Channel ipv6
    State:          DOWN
    Table:          t_6_allnet_as20722_1
    Preference:     100
    Input filter:   (unnamed)
    Output filter:  (unnamed)
    Import limit:   150
      Action:       restart