[Agenda] [Examples] [Network Partitioning] [Concepts] [Policy] [Process] [Organization] [HW-SW] [Cases studies] [Conclusion] [Resources]
[first slide] Performance issues associated with Network Partitioning (1/4) [previous slide] [next slide]

* Filtering Performance *


* IP filtering performance is still an issue today
o Low cost network devices, low performance, minimum amount of memory
o Poor IP filtering capabilities on low-end routers
o Poor optimization of filtering code in some routers

* IP filtering performance will no longer be an issue tomorrow
o Layer 4 filtering on switches, even in routers
o IP filtering is programmed in hardware, ASICs
o Time of datagram treatment is independent of filters length
o Needed for QoS, QoS needed for VoIP


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