DoS my clients

[Vadim_Stepanov]

We have a ring from 6509.. Happens that any client DoS/dDoS from outside of.. As it is better diagnostics such problems.. Broad gullies netflow to process long/ip flow-top talkers yet have not included.. Whether it is necessary to use RSPAN.. How much I know it works crookedly.. What will advise? Modules Anomaly detectors/guard to buy we do not think

[didyap]

Practically only 6500 supports RSPAN. RSPAN designates a 'SPAN' VLAN that all SPAN traffic gets dumped into. This allows the traffic to be forwarded over multiple switches. Here is information on RSPAN:

http://www.cisco.com/en/US/products/hw/switches/ps646/products_configuration_guide_chapter09186a00801ce0bc.html

[Vadim_Stepanov]

I heard that RSPAN works very much not correctly.. Also can cause a storm