FTOS Configuration Guide for the C-Series - Force10 Networks

Chapter 8 Port Monitoring
Port Monitoring is supported on platforms: c e s
Port Monitoring is a feature that copies all incoming or outgoing packets on one port and forwards them to
to another port. The source port is the monitored port (MD) and the destination port is the monitoring port
(MG). Port Monitoring functionality is different between platforms, but the behavior is the same, with
highlighted exceptions.
This chapter is divided into the following sections:
• Port Monitoring on E-Series on page 175
• Port Monitoring on C-Series and S-Series on page 176
• Important Points to Remember on page 177
• Configuring Port Monitoring on page 177
• Flow-based Monitoring on page 179 — e
Port Monitoring on E-Series
On the E-Series, FTOS supports a single source-destination statement in a monitor session (Message 9).
FTOS allows only one source and one destination port per port-pipe (Message 10). Therefore, the E-Series
supports as many monitoring sessions as there are port-pipes in the system.
Message 9 Multiple Source-Destination Statements Error Message on E-Series
% Error: Remove existing monitor configuration.
Message 10 One Source/Destination Port per Port-pipe Error Message on E-Series
% Error: Some port from this port pipe is already configured as MD.
% Error: Some port from this port pipe is already configured as MG.
A source port may only be monitored by one destination port (Message 11). However, a destination port
may monitor more than one source port. Given these parameters, Figure 86 illustrates conceptually the
possible port monitoring configurations on the E-Series.
Message 11 One Destination Port per Source Port Error Message
% Error: MD port is already being monitored.
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