br1/ipv4: show protocols all pipe1

pipe1 Pipe --- up 2020/02/21-14:00:46 master4 <=> blackholed

Channel main
    Table:          master4
    Peer table:     blackholed
    Import state:   up
    Export state:   up
    Import filter:  ACCEPT
    Export filter:  REJECT
  Routes:         0 imported, 0 exported
  Route change stats:     received   rejected   filtered    ignored   accepted
    Import updates:              1          0          0          0          1
    Import withdraws:            1          0        ---          0          1
    Export updates:      319509875          1  319509874          0          0
    Export withdraws:     48280182          0        ---   48280181          0