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TIBCO Rendezvous® 8.8.0

# Passive Monitor

`rvtrace` is a passive monitor. It neither uses nor interferes with Rendezvous daemon processes. `rvtrace` does not add any packet traffic to the network.

`rvtrace` does not require a Rendezvous daemon for its operation. Instead, it collects network packets using the `pcap` facility.

## Performance Effects

Warning | Although `rvtrace` is a passive monitor, it opens the network device in promiscuous mode, which consumes CPU and network resources on its host computer (in proportion to total network traffic). Running `rvtrace` on the same computer as any Rendezvous daemon (`rvd` or routing daemon) indirectly affects the operation of the local daemon by consuming these resources. Running `rvd` and `rvtrace` together on the same computer changes the timing and loading profiles of the host computer. Avoid this situation whenever possible. Instead, run `rvtrace` on a computer that is otherwise free of Rendezvous activity. We further recommend that `rvtrace` run on a computer that is fast enough to process every Ethernet packet that appears at its network interface.

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