spb-rs2/ipv4: show protocols all Yandex

Yandex BGP --- up 2018-12-01 Established

Description:    Yandex/13238/AS-YANDEX
  BGP state:          Established
    Neighbor address: 31.44.186.57
    Neighbor AS:      13238
    Neighbor ID:      87.250.233.142
    Local capabilities
      Multiprotocol
        AF announced: ipv4
      Route refresh
      Graceful restart
      4-octet AS numbers
      Enhanced refresh
    Neighbor capabilities
      Multiprotocol
        AF announced: ipv4
      Route refresh
      Graceful restart
      4-octet AS numbers
    Session:          external route-server AS4
    Source address:   31.44.186.254
    Hold timer:       66.875/90
    Keepalive timer:  18.666/30
  Channel ipv4
    State:          UP
    Table:          master4
    Preference:     100
    Input filter:   (unnamed)
    Output filter:  (unnamed)
    Import limit:   5000
      Action:       disable
    Routes:         61 imported, 0 filtered, 6538 exported
    Route change stats:     received   rejected   filtered    ignored   accepted
      Import updates:          20552          0          0         61      20491
      Import withdraws:            9          0        ---          0          9
      Export updates:         191612      20491      75021        ---      96100
      Export withdraws:        57649        ---        ---        ---      48168
    BGP Next hop:   31.44.186.254