spb-rs2/ipv4: show protocols all firstline

firstline BGP --- up 2020-03-17 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:       127.136/180
    Keepalive timer:  30.126/60
  Channel ipv4
    State:          UP
    Table:          rib4
    Preference:     100
    Input filter:   (unnamed)
    Output filter:  (unnamed)
    Import limit:   5000
      Action:       disable
    Routes:         49 imported, 1 filtered, 81476 exported, 49 preferred
    Route change stats:     received   rejected   filtered    ignored   accepted
      Import updates:            124          0          5         57         62
      Import withdraws:           10          0        ---          7          7
      Export updates:        1830214         64         12        ---    1830138
      Export withdraws:       894129        ---        ---        ---     894137
    BGP Next hop:   185.1.153.0