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CrossFire 8600/8605 Token-Ring Switches v. 1.2, P/N: 710001641 Monitoring Port Traffic
9. Monitoring Port Traffic
The CrossFire 8600 Token-Ring Switch and th e Cros sFire 8 605 Toke n-Ri ng Fib er
Switch allow you to configure a Switched Port Analyzer function for monitoring
traffic on a port by defining a monitor port where an external probe can observe
traffic from a selected monitored port. The monitoring function does not interfere
in any way with the normal traffic flow in the switch.
The external probe (e.g. a protocol analyzer) is not supplied with the switch.
You can monitor traffic going through a monitored port in two different ways:
Active Monitoring:
Data-only monitoring - you can s elect t he monit ored po rt and m onit or port, all da ta
traffic received and transmit ted on the monit ored port i s copi ed to the monitor port
such that it can be r eceived by an extern al probe. The MAC frames are not copied
to the monitor port.
Passive Monitoring:
All traffic monitoring (data and MAC protocol) - makes a copy of all data and MAC
frames received and transmitted on the monitored port to up to two monitor ports;
you can specify a dedicated monitor port for traffic received on the moni tored port
and a different monitor port for traffic transmitted on the monitored port . You must
use two monitor ports if the monitored port operates in FDX mode.
To configure a Switched Port Analyzer port, select Sw itched Port Analyzer
Configuration on the Configuration menu. The Switched Port A nalyzer
Configuration screen is then displayed (see the next page).