pbb-osmium: show protocols all bgp_peer_lf_xd_ipv4

bgp_peer_lf_xd_ipv4 BGP --- start 2021-09-25 13:13:36 Connect Socket: No route to host

BGP state:          Connect
    Neighbor address:
    Neighbor AS:      207880
    Local AS:         207921
    Last error:       Socket: No route to host
  Channel ipv4
    State:          DOWN
    Table:          master4
    Preference:     100
    Input filter:   (unnamed)
    Output filter:  (unnamed)
    IGP IPv4 table: ospf4