Traffic Sampling for Junos SDK Applications Overview
For routers containing a Multiservices PIC, the existing interface statement at the [edit forwarding-options sampling family family output] hierarchy level is extended to allow you to use an interface of the ms- type (ms-fpc/pic/port) to sample traffic passing through the router.
As with the regular Junos operating system (OS), to configure traffic sampling for a Junos SDK application, you must complete three tasks: create a firewall filter, apply it to the logical interface on which you want to sample traffic, and enable sampling. There is also a sampling service set you should be aware of. For information on this new service set type, see Configuring the Sampling Service Set.
Limitations and Constraints of SDK Traffic Sampling
The following are limitations of traffic monitoring as supported for Junos SDK applications:
- Traffic monitoring is supported for IPv4 only.
- Firewall filters are used on ingress interfaces to direct packets for sampling. Sampling and port mirroring cannot be enabled on the same traffic.
- Only one extension-service statement can be used.
- Only one interface can be configured for sampling.
