empty itarget etarget

sqm.eth1.itarget=''
sqm.eth1.etarget=''


tc -s qdisc

qdisc noqueue 0: dev lo root refcnt 2
 Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0)
 backlog 0b 0p requeues 0
qdisc fq_codel 0: dev eth0 root refcnt 2 limit 10240p flows 1024 quantum 1514 target 5.0ms interval 100.0ms ecn
 Sent 230782001 bytes 371259 pkt (dropped 0, overlimits 0 requeues 0)
 backlog 0b 0p requeues 0
  maxpacket 0 drop_overlimit 0 new_flow_count 0 ecn_mark 0
  new_flows_len 0 old_flows_len 0
qdisc noqueue 0: dev eth0.1 root refcnt 2
 Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0)
 backlog 0b 0p requeues 0
qdisc noqueue 0: dev eth0.2 root refcnt 2
 Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0)
 backlog 0b 0p requeues 0
qdisc cake 8007: dev pppoe-wan root refcnt 2 bandwidth 2055Kbit diffserv3 triple-isolate rtt 100.0ms raw
 Sent 19068065 bytes 123462 pkt (dropped 88, overlimits 43676 requeues 0)
 backlog 0b 0p requeues 0
 memory used: 124992b of 4Mb
 capacity estimate: 2055Kbit
                 Bulk   Best Effort      Voice
  thresh     128432bit    2055Kbit   513744bit
  target       141.8ms       8.9ms      35.5ms
  interval     283.7ms     103.9ms      70.9ms
  pk_delay         0us       4.5ms       3.1ms
  av_delay         0us       502us       212us
  sp_delay         0us         9us         7us
  pkts               0      120624        2926
  bytes              0    18772370      402509
  way_inds           0        1293           0
  way_miss           0        9418         447
  way_cols           0           0           0
  drops              0          88           0
  marks              0           0           0
  sp_flows           0           1           0
  bk_flows           0           1           0
  un_flows           0           0           0
  max_len            0        1500         515

qdisc ingress ffff: dev pppoe-wan parent ffff:fff1 ----------------
 Sent 206194359 bytes 190080 pkt (dropped 0, overlimits 0 requeues 0)
 backlog 0b 0p requeues 0
qdisc cake 8008: dev ifb4pppoe-wan root refcnt 2 bandwidth 9660Kbit besteffort triple-isolate wash rtt 100.0ms raw
 Sent 206738045 bytes 189398 pkt (dropped 682, overlimits 260455 requeues 0)
 backlog 0b 0p requeues 0
 memory used: 73408b of 4Mb
 capacity estimate: 9660Kbit
                 Tin 0
  thresh      9660Kbit
  target         5.0ms
  interval     100.0ms
  pk_delay       1.3ms
  av_delay       232us
  sp_delay        12us
  pkts          190080
  bytes      207714999
  way_inds        1456
  way_miss        9808
  way_cols           0
  drops            682
  marks              0
  sp_flows           1
  bk_flows           1
  un_flows           0
  max_len         1500