we have an issue where our in-line IDPS system (McAfee M-8000) slows down smb traffic . here are some details :
- if we switch IDPS to layer 2 mode ; performance is fine . no cabling or duplex issue
- if we remove all IDPS policies - smb is still slow . so it's not the policy causing it
- There is no rate limiting or QoS profile on the device
any thoughts ?