Performance Monitor Failed to Capture for 3Com Switch 7700

Performance Monitor Failed to Capture for 3Com Switch 7700

Hi everyone.

Need your help here.
I've got a problem to capture data for performance monitor of 3Com Switch 7700 (Mem Utilztion, CPU Utlztion, etc).
The credential test was passed for both snmp and cli.
But for test monitor its failed.

any ideas? i already rediscover this switch twice, but still failed.
help me pless..

Big tq..









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