de-bgp/ipv6: show protocols all RS2_4B42_GRETAP

RS2_4B42_GRETAP BGP master start 14:05:21 Idle BGP Error: Hold timer expired

Description:    Germany to AS35708
  Preference:     100
  Input filter:   (unnamed)
  Output filter:  (unnamed)
  Routes:         0 imported, 0 exported, 0 preferred
  Route change stats:     received   rejected   filtered    ignored   accepted
    Import updates:              0          0          0          0          0
    Import withdraws:            0          0        ---          0          0
    Export updates:              0          0          0        ---          0
    Export withdraws:            0        ---        ---        ---          0
  BGP state:          Idle
    Neighbor address: 2001:7f8:d0:b901::7d02
    Neighbor AS:      35708
    Error wait:       49/60
    Last error:       BGP Error: Hold timer expired