msk-rs2/ipv4: show protocols all erth

erth BGP --- start 2021-07-23 Connect Socket: No route to host

Description:    erth/9049/AS-ERTH/via m9-n9k-e12
  BGP state:          Connect
    Neighbor address:
    Neighbor AS:      9049
    Local AS:         49869
    Last error:       Socket: No route to host
  Channel ipv4
    State:          DOWN
    Table:          rib4
    Preference:     100
    Input filter:   (unnamed)
    Output filter:  (unnamed)
    Import limit:   999000
      Action:       disable