gw5/ipv4: show protocols all p_maintbl

p_maintbl Pipe master up 2017-07-04 => ebgp

Preference:     70
  Input filter:   (unnamed)
  Output filter:  REJECT
  Routes:         1607 imported, 0 exported
  Route change stats:     received   rejected   filtered    ignored   accepted
    Import updates:         756520          0        142       1671     754707
    Import withdraws:        13231          0        ---         29      13167
    Export updates:         756380     756380          0          0          0
    Export withdraws:        13167          0        ---          0          0