The award-winning Cisco SN 5420 Storage Router provides universal access to storage over IP networks. With the SN 5420 Storage Router, you can directly access storage anywhere on an IP network just as easily as you can access storage locally. All the robustness of the (TCP/IP) protocol suite, including security, availability, manageability, and quality of service (QoS), is available when you access storage. More importantly, the SN 5420 Storage Router from Cisco Systems enables the Small Computer Systems Interface over IP (iSCSI), which is the first storage implementation based on IP standards and interoperability.With the Cisco SN 5420 Storage Router, any application that can access storage using the SCSI protocol becomes an IP application. This capability enables your existing application software suites to operate without modification. The Cisco SN 5420 Storage Router fits seamlessly into existing storage and data networks. The SN 5420 Storage Router is based on both IP and storage-area network (SAN) standards, providing interoperability with existing local-area network (LAN), wide-area network (WAN), optical, and SAN equipment. Network administrators familiar with IP networking will be instantly familiar with the SN 5420 Storage Router and its management interfaces. The Cisco SN 5420 Storage Router provides optimal performance and reliability for your IP network and storage systems. You can add SN 5420s to match the performance and reliability needs of your network. The Cisco SN 5420 Storage Router provides full network management support through the industry standard Simple Network Management Protocol (SNMP), GUI and CLI. Using Access Control Lists, you can locate critical data on your storage arrays and be confident that access is limited to only those users that the network administrator has granted access. The SN 5420 Storage Router also has password protection to further control security.