rs2/ipv4: show protocols all pb_4_nav_as6718_1

pb_4_nav_as6718_1 BGP --- start 2019-07-15 Connect Socket: No route to host

Description:    NAV Communications 1
  BGP state:          Connect
    Neighbor address:
    Neighbor AS:      6718
    Last error:       Socket: No route to host
  Channel ipv4
    State:          DOWN
    Table:          t_4_nav_as6718_1
    Preference:     100
    Input filter:   (unnamed)
    Output filter:  (unnamed)
    Import limit:   150
      Action:       restart