msk-rs2/ipv4: show protocols all firstline

firstline BGP --- up 2021-05-04 Established

Description:    firstline/43267/AS-LINETEL
  BGP state:          Established
    Neighbor address: 185.1.161.12
    Neighbor AS:      43267
    Local AS:         49869
    Neighbor ID:      82.112.184.182
    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 ipv4-mc
      Route refresh
      Graceful restart
      4-octet AS numbers
      Long-lived graceful restart
    Session:          external route-server AS4
    Source address:   185.1.161.0
    Hold timer:       60.133/90
    Keepalive timer:  4.855/30
  Channel ipv4
    State:          UP
    Table:          master4
    Preference:     100
    Input filter:   (unnamed)
    Output filter:  (unnamed)
    Import limit:   5000
      Action:       disable
    Routes:         46 imported, 3 filtered, 109387 exported, 42 preferred
    Route change stats:     received   rejected   filtered    ignored   accepted
      Import updates:             50          0          4          0         46
      Import withdraws:            1          0        ---          5          0
      Export updates:        1211019         64        220        ---    1210735
      Export withdraws:       276560        ---        ---        ---     276484
    BGP Next hop:   185.1.161.0