Zyxel Dimension GS-4012F

Zyxel Dimension GS-4012F ... redundant architecture with OSPF, VRRP, RSTP and port trunking. The GS-4000 series offers many advanced features to make it the preferred choice for real-routing network in the enterprise. Advanced functionalities like QoS, rate-limiting, rule-based access control lists, multicasting support, wire-speed, high-performance IP routing and simplified management software (iStacking) highly improve network operation.

The GS-4000 series delivers wire-speed full-dynamic IP routing, like OSPF and RIP using a hardware-based IP routing engine and sophisticated multilayer operating software. In addition to dynamic IP multicast, the GS- 4000 series supports Distance Vector Multicast Routing Protocol (DVMRP) and Internet Group Management Protocol (IGMP) snooping to perfectly handle a variety of datagrams making the ZyXEL GS-4000 series ideal for today's multi-service network environment.

The GS-4000 series works with ZyXEL exclusive iFlow technology, a set of advanced QoS mechanisms, to insure noteworthy service, and smooth operation via a series of QoS processes to prevent customers' networks being negatively impacted by network congestion. With intelligent multilayer capability, the GS- 4000 series offers wire-speed flow control which can classify, police, and prioritize the incoming packets according to predefined QoS policies. In classification, Differentiated Services Code Point field (DSCP) and the 802.1p class of service (CoS) field are identified to assess the priority of incoming packets. Classification and reclassification can be based on criteria as specific as rule-based on IP, MAC addresses, VLAN ID, TCP/UDP port number, on the other hand, for bandwidth management, the GS-4000 series is loaded with powerful traffic management tools. For instance, the GS-4000 series provides eight priority queues per port for different types of traffics, allowing administrators to set rule-based rate limiting which takes full advantage of limited network resources and guarantees the best performance.