gw5/ipv4: show protocols all p_maintbl

p_maintbl Pipe master up 2017-09-21 => ebgp

Preference:     70
  Input filter:   (unnamed)
  Output filter:  REJECT
  Routes:         1433 imported, 0 exported
  Route change stats:     received   rejected   filtered    ignored   accepted
    Import updates:          95079          0         66          0      95013
    Import withdraws:        61067          0        ---          0      61048
    Export updates:          95013      95013          0          0          0
    Export withdraws:        61048          0        ---          0          0