msk-rs1/ipv4: show protocols all sits

sits BGP --- up 2021-06-18 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:   185.1.160.255
    Hold timer:       75.180/90
    Keepalive timer:  12.260/30
  Channel ipv4
    State:          UP
    Table:          master4
    Preference:     100
    Input filter:   (unnamed)
    Output filter:  (unnamed)
    Import limit:   5000
      Action:       disable
    Routes:         19 imported, 0 filtered, 106749 exported, 4 preferred
    Route change stats:     received   rejected   filtered    ignored   accepted
      Import updates:             19          0          0          0         19
      Import withdraws:            0          0        ---          0          0
      Export updates:         323267         16          2        ---     323249
      Export withdraws:       178848        ---        ---        ---     178848
    BGP Next hop:   185.1.160.255