gw7/ipv4: show protocols all p_maintbl

p_maintbl Pipe master up 2017-07-14 => ebgp

Preference:     70
  Input filter:   (unnamed)
  Output filter:  REJECT
  Routes:         15852 imported, 0 exported
  Route change stats:     received   rejected   filtered    ignored   accepted
    Import updates:        2461758          0         21          0    2461737
    Import withdraws:       301652          0        ---          0     301652
    Export updates:        2461737    2461737          0          0          0
    Export withdraws:       301652          0        ---          0          0