spb-rs2/ipv4: show protocols all yandex

yandex BGP --- up 2021-09-23 Established

Description:    yandex/13238/AS-YANDEX/via Yandex
  BGP state:          Established
    Neighbor address: 185.1.152.57
    Neighbor AS:      13238
    Local AS:         50817
    Neighbor ID:      87.250.233.131
    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
      Long-lived graceful restart
    Session:          external route-server AS4
    Source address:   185.1.153.0
    Hold timer:       75.243/90
    Keepalive timer:  8.528/30
  Channel ipv4
    State:          UP
    Table:          master4
    Preference:     100
    Input filter:   (unnamed)
    Output filter:  (unnamed)
    Import limit:   500
      Action:       disable
    Routes:         33 imported, 0 filtered, 14983 exported, 32 preferred
    Route change stats:     received   rejected   filtered    ignored   accepted
      Import updates:            198          0          0        165         33
      Import withdraws:            0          0        ---          0          0
      Export updates:         421020         33     354770        ---      66217
      Export withdraws:       178596        ---        ---        ---      46795
    BGP Next hop:   185.1.153.0