华为交换机和MRTG的问题！

wenta

用mrtg分析华为系列的路由器和交换机，mrtg提示错误，如下：
SNMPGET Problem for ifInOctets.2 ifOutOctets.2 sysUptime sysName on cnc*@210.22.*.*::::::v4only
at mrtg line 1798
WARNING: skipping because at least the query for ifInOctets.2 on  210.22.*.* did not succeed
WARNING: no data for ifInOctets&ifOutOctets:cnc*@210.22.*.*. Skipping further queries for Host 210.22.*.* in this round.
ERROR: Target[210.22.*.*_2][_IN_] ' $target->;[0]{$mode} ' did not eval into defined data
ERROR: Target[210.22.*.*_2][_OUT_] ' $target->;[0]{$mode} ' did not eval into defined data
WARNING: Skipping Update of 210.22.*.*_2, inlast is not defined
WARNING: Skipping Update of 210.22.*.*_2, outlast is not defined
请大家指点一下！