Abstract: A network element within a data center comprises a switch adapted to receive a data packet, a server in communication with the switch, and a switching engine in the switch. The switching engine may be configured to modify policy header information in the data packet to direct the packet to the server. The server may be configured to modify the policy header information while the data packet is in the server to return the data packet to said switch.

Abstract: A network element within a data center comprises a switch adapted to receive a data packet, a server in communication with the switch, and a switching engine in the switch. The switching engine may be configured to modify policy header information in the data packet to direct the packet to the server. The server may be configured to modify the policy header information while the data packet is in the server to return the data packet to said switch.

Abstract: A network element within a data center comprises a switch adapted to receive a data packet, a server in communication with the switch, and a switching engine in the switch. The switching engine may be configured to modify policy header information in the data packet to direct the packet to the server. The server may be configured to modify the policy header information while the data packet is in the server to return the data packet to said switch.

Abstract: A network element within a data center comprises a switch adapted to receive a data packet, a server in communication with the switch, and a switching engine in the switch. The switching engine may be configured to modify policy header information in the data packet to direct the packet to the server. The server may be configured to modify the policy header information while the data packet is in the server to return the data packet to said switch.

Abstract: A network element within a data center comprises a master switch, a slave switch, and a plurality of servers in communication with the master and slave switches. The master switch may be configured to send synchronization requests to the slave switch. The slave switch may update a slave switch hash table to correspond to a master switch hash table.

Abstract: A network element within a data center comprises a master switch, a slave switch, and a plurality of servers in communication with the master and slave switches. The master switch may be configured to send synchronization requests to the slave switch. The slave switch may update a slave switch hash table to correspond to a master switch hash table.

Abstract: A network element within a data center comprises a master switch, a slave switch, a plurality of servers in communication with the master and slave switches, and an inter-switch link connected between the master switch and the slave switch. The master switch and the slave switch are configured to bi-directionally synchronize both server status and application hash table information through the inter-switch link.

Abstract: A network element within a data center comprises a master switch, a slave switch, a plurality of servers in communication with the master and slave switches, and an inter-switch link connected between the master switch and the slave switch. The master switch and the slave switch are configured to bi-directionally synchronize both server status and application hash table information through the inter-switch link.

Abstract: A network element within a data center comprises a switch adapted to receive a data packet, a server in communication with the switch, and a switching engine in the switch. The switching engine may be configured to modify policy header information in the data packet to direct the packet to the server. The server may be configured to modify the policy header information while the data packet is in the server to return the data packet to said switch.

Abstract: A network element within a data center comprises a master switch, a slave switch, and a plurality of servers in communication with the master and slave switches. The master switch may be configured to send synchronization requests to the slave switch. The slave switch may update a slave switch hash table to correspond to a master switch hash table.

Abstract: A network element within a data center comprises a master switch, a slave switch, and a plurality of servers in communication with the master and slave switches. The master switch may be configured to send synchronization requests to the slave switch. The slave switch may update a slave switch hash table to correspond to a master switch hash table.

Abstract: A network element within a data center comprises a switch adapted to receive a data packet, a server in communication with the switch, and a switching engine in the switch. The switching engine may be configured to modify policy header information in the data packet to direct the packet to the server. The server may be configured to modify the policy header information while the data packet is in the server to return the data packet to said switch.

Abstract: Methods and systems for maintaining high-availability in a computer network using intelligent failover are presented. In a network switch running an OSI model layer-2 or higher protocol on its external links, the protocol state information is monitored to determine failover status of the link to avoid identifying external link failures due to link flapping. One such protocol is the spanning tree protocol. Additionally, flexibility in failover is provided using configurable triggers to define external failure events. The triggers initiate a link drop of one or more internal links of the network switch in response to an external failure event. The link drops, in turn, initiate failover of an attached computing device to a redundant link through a network interface teaming/failover arrangement whereby the computing device switches to an alternative network interface accessing the network through a redundant path. Failover can be selective depending upon VLAN and trunking configurations.