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The system supports robust failover and failback capabilities , reducing management and operational costs . While these services can be addressed by implementing standalone appliances , the Catalyst 6500 offers the added advantage of integrated these services into the switch chassis . Integrated resiliency in both hardware and software minimizes network downtime , helping to ensure workforce productivity , profitability , and customer success . Companies should begin the process of building internal models that measure the productivity of investments in the area while laying the foundation for process redefinition . The Cisco Catalyst 3560 provides a means to intelligently scale the network beyond 100 Mbps over existing Category 5 copper cabling and simultaneously support PoE for maximum productivity and investment protection . It is important to adhere to this independent layering protocol in design and development of Fault Management mechanisms for Ethernet services in order to ensure ease of operation over different transport layers . ( If you want to take the time to make up your own mind , CRA provides a wealth of market data and industry specific salary surveys . By combining Cisco 12-port , 24-port and 48-port 4-Gbps Fibre Channel switching modules in a single , modular chassis , customers can design storage networks optimized for cost and performance in a wide range of application environments . We're collecting salary negotiation tips ( from the employee 's perspective ) for a short pamphlet on ( you guessed it ) Salary Negotiation . Only one supply is required to operate a fully loaded chassis . ERSPAN requires the use of a Supervisor 720 to be in the chassis where both the source and destination ports are located . Consider another scenario where failover occurs to a redundant chassis and now the switch has to relearn all MAC addresses for dual homed hosts .