Flow Monitoring and Discard Accounting Overview
Using a Juniper Networks M-series or T-series routing platform, a selection of Physical Interface Cards (PICs) (including the Monitoring Services PIC or Adaptive Services [AS] PIC) and other networking hardware, you can monitor traffic flow and export the monitored traffic. Monitoring traffic allows you to do the following:
- Gather and export detailed information about Internet Protocol version 4 (IPv4) traffic flows between source and destination nodes in your network.
- Sample all incoming IPv4 traffic on the monitoring interface and present the data in cflowd record format.
- Perform discard accounting on an incoming traffic flow.
- Encrypt or tunnel outgoing cflowd records, intercepted IPv4 traffic, or both.
- Direct filtered traffic to different packet analyzers and present the data in its original format (port mirror).
NOTE: Monitoring Services PICs and AS PICs must be mounted on an Enhanced Flexible PIC Concentrator (FPC) in an M-series or T-series routing platform.
This section provides general information on the following topics: