MLS also allows you to use either an integrated RSM or an external router for route processing and Cisco IOS services. Fast Convergence Allows you to respond to route failures and routing topology changes by performing hardware-assisted invalidation of flow entries. Resilience Provides the benefits of HSRP 3 without additional configuration. This feature enables the switches to transparently switch over to the hot standby backup router when the primary router goes offline, eliminating a single point of failure in the network. Access Lists Allows you to set up access lists to filter, or to prevent traffic between members of different subnets.
MLS enforces multiple security levels on every packet of the flow at wire speed.
Because MLS parses the packet up to the transport layer, it enables access lists to be validated. By providing multiple security levels, MLS enables you to set up rules and control traffic based on IP addresses as well as transport-layer application port numbers. Accounting and Traffic Management Allows you to see data flows as they are switched for troubleshooting, traffic management, and accounting purposes. MLS uses NDE to export the flow statistics. Data collection of flow statistics is maintained in hardware with no impact on switching performance.