spb-rs2/ipv4: show protocols all firstline

firstline BGP --- up 2021-03-19 Established

Description:    firstline/43267/AS-LINETEL/via FirstLine
  BGP state:          Established
    Neighbor address: 185.1.152.107
    Neighbor AS:      43267
    Local AS:         50817
    Neighbor ID:      82.112.184.1
    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
      4-octet AS numbers
      Enhanced refresh
    Session:          external route-server AS4
    Source address:   185.1.153.0
    Hold timer:       144.291/180
    Keepalive timer:  38.075/60
  Channel ipv4
    State:          UP
    Table:          master4
    Preference:     100
    Input filter:   (unnamed)
    Output filter:  (unnamed)
    Import limit:   5000
      Action:       disable
    Routes:         42 imported, 2 filtered, 101323 exported, 40 preferred
    Route change stats:     received   rejected   filtered    ignored   accepted
      Import updates:            115          0          4         56         55
      Import withdraws:           13          0        ---          2         13
      Export updates:        2338772        109          0        ---    2338663
      Export withdraws:      1129023        ---        ---        ---    1129042
    BGP Next hop:   185.1.153.0