msk-rs2/ipv4: show protocols all linkey

linkey BGP --- up 2021-09-24 Established

Description:    linkey/13002/AS-ISIX/via Linkey
  BGP state:          Established
    Neighbor address: 185.1.160.60
    Neighbor AS:      13002
    Local AS:         49869
    Neighbor ID:      213.159.127.4
    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
        Restart time: 120
        AF supported: ipv4
        AF preserved: ipv4
      4-octet AS numbers
      Long-lived graceful restart
    Session:          external route-server AS4
    Source address:   185.1.161.0
    Hold timer:       72.940/90
    Keepalive timer:  5.958/30
  Channel ipv4
    State:          UP
    Table:          master4
    Preference:     100
    Input filter:   (unnamed)
    Output filter:  (unnamed)
    Import limit:   5000
      Action:       disable
    Routes:         15 imported, 0 filtered, 118410 exported, 15 preferred
    Route change stats:     received   rejected   filtered    ignored   accepted
      Import updates:             30          0          0         15         15
      Import withdraws:            0          0        ---          0          0
      Export updates:         380805         15         38        ---     380752
      Export withdraws:       122683        ---        ---        ---     122678
    BGP Next hop:   185.1.161.0