For cflowd to be operational, the following requirements must be met:
Cflowd must be enabled on a global level. If cflowd is disabled, any traffic sampling instances are also disabled.
At least one collector must be configured and enabled for traffic sampling to occur on an enabled entity.
If a specific collector UDP port is not identified, flows are sent to port 2055 by default.
The following table displays the expected results when specific features are enabled and disabled.
| Interface setting | router>interface cflowd [interface] setting | Command ip-filter entry setting | Expected results |
|---|---|---|---|
|
Interface mode 1 |
Interface |
none |
All IP traffic ingressing the interface is subject to sampling |