spb-rs2/ipv4: show protocols all yandex

yandex BGP --- up 2020-03-19 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:      87.250.233.135
    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:       61.087/90
    Keepalive timer:  12.316/30
  Channel ipv4
    State:          UP
    Table:          rib4
    Preference:     100
    Input filter:   (unnamed)
    Output filter:  (unnamed)
    Import limit:   5000
      Action:       disable
    Routes:         55 imported, 0 filtered, 11941 exported, 55 preferred
    Route change stats:     received   rejected   filtered    ignored   accepted
      Import updates:             55          0          0          0         55
      Import withdraws:            0          0        ---          0          0
      Export updates:        2010997         55     789608        ---    1221334
      Export withdraws:       976944        ---        ---        ---     652771
    BGP Next hop:   185.1.153.0