Interpreting the Enterprise-Specific Passive Monitoring MIB

The passive monitoring MIB, whose object identifier is {jnxMibs 19}, performs traffic flow monitoring and lawful interception of packets transiting between two routers. This MIB 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.
• 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.
• The passive monitoring MIB has three tables: jnxPMonFlowTable, JnxPMonErrorTable, and jnxPMonMemoryTable. jnxPMonFlowTable monitors and collects statistics on the flow of traffic on a Passive Monitoring Physical Interface Card (PIC). jnxPMonErrorTable monitors and collects statistics on packet and memory errors on a Passive Monitoring PIC. jnxPMonMemoryTable monitors and collects statistics on memory usage on a Passive Monitoring PIC. For information about system requirements, see the JUNOS Feature Guide. For a downloadable version of this MIB, see www.juniper.net/techpubs/software/
junos/junos71/swconfig71-net-mgmt/html/mib-jnx-pmon.txt.

This chapter documents only jnxPMonFlowTable.

This chapter contains the following topic:

• jnxPMonFlowTable