msk-rs2/ipv4: show protocols all sits

sits BGP --- up 2021-04-05 Established

Description:    sits/47379/AS-SITS
  BGP state:          Established
    Neighbor address: 185.1.160.19
    Neighbor AS:      47379
    Local AS:         49869
    Neighbor ID:      172.27.0.255
    Local capabilities
      Multiprotocol
        AF announced: ipv4
      Route refresh
      Graceful restart
      4-octet AS numbers
      Enhanced refresh
      Long-lived graceful restart
    Neighbor capabilities
      Multiprotocol
        AF announced: ipv4
      Route refresh
      Graceful restart
      4-octet AS numbers
    Session:          external route-server AS4
    Source address:   185.1.161.0
    Hold timer:       70.002/90
    Keepalive timer:  22.389/30
  Channel ipv4
    State:          UP
    Table:          master4
    Preference:     100
    Input filter:   (unnamed)
    Output filter:  (unnamed)
    Import limit:   5000
      Action:       disable
    Routes:         19 imported, 0 filtered, 105079 exported, 5 preferred
    Route change stats:     received   rejected   filtered    ignored   accepted
      Import updates:             65          0          0         19         46
      Import withdraws:           20          0        ---          0         20
      Export updates:         703219          6         86        ---     703127
      Export withdraws:       197126        ---        ---        ---     197121
    BGP Next hop:   185.1.161.0