rs2/ipv4: show protocols all pb_6_llhost_as202023_2

pb_6_llhost_as202023_2 BGP --- start 2019-07-12 Active Socket: Connection closed

Description:    LLHost 2
  BGP state:          Active
    Neighbor address: 2001:7f8:64:225:0:20:2023:2
    Neighbor AS:      202023
    Connect delay:    3.504/5
    Last error:       Socket: Connection closed
  Channel ipv6
    State:          DOWN
    Table:          t_6_llhost_as202023_2
    Preference:     100
    Input filter:   (unnamed)
    Output filter:  (unnamed)
    Import limit:   50
      Action:       restart