Cflowd
7750 SR OS Router Configuration Guide Page 453
Enabling Cflowd on Interfaces and Filters
This section discusses the following cflowd configuration management tasks:
•Dependencies on page 453
•Specifying Cflowd Options on an IP Interface on page 455
→Interface Configurations on page 455
→Service Interfaces on page 456
•Specifying Sampling Options in Filter Entries on page 457
→Interface Configurations on page 455

Dependencies

In order 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 in order for traffic sampling to occur
on an enabled entity.
• If a specific collector UDP port is not identified then, by default, flows are sent to port
2055.
Cflowd can also be dependent on the following entity configurations:
•Interface Configurations on page 455
•Service Interfaces on page 456
•Filter Configurations on page 457
Depending on the combination of interface and filter entry configurations determine if and when
flow sampling occurs. Tabl e 21 displays the expected results when specific features are enabled
and disabled.