select
  pnum,                                    -- PNUM NUMBER
  svrname,                                 -- SVRNAME VARCHAR2(255)
  path,                                    -- PATH VARCHAR2(255)
  local,                                   -- LOCAL VARCHAR2(255)
  ch_id,                                   -- CH_ID NUMBER
  svr_id,                                  -- SVR_ID NUMBER
  sends,                                   -- SENDS NUMBER
  recvs,                                   -- RECVS NUMBER
  pings                                    -- PINGS NUMBER
from
  gv$dnfs_channels
where
  inst_id = USERENV('Instance')