[Contents] [Prev] [Next] [Index] [Report an Error]

Flow Collection

The JUNOSe J-Flow functionality allows statistics collection at the VR/VRF level. This means that each virtual router (VR)/VPN routing and forwarding (VRF) table has its own main cache for statistics gathering.

Although you can export flow statistics only at the VR level, VRF data is rolled up for each VR. The reason for supporting export flow at the VR level is that existing export formats cannot discriminate between VRs and VRFs. However, even though export formats do not allow for segregation, the JUNOSe CLI commands do. Segregating each collection by VR removes any ambiguity and aliasing that may occur with overlapping address spaces (as may occur in virtual private network [VPN] configurations).

[Contents] [Prev] [Next] [Index] [Report an Error]