Patent ID: 6934292
Filing Date: 2005-08-23
Classification: H04L

Abstract:
1. A switch stack connected to networks, the switch stack comprising: a plurality of stack devices arranged in a stack configuration, each stack device having first ports coupled to the networks and second ports coupled to other stack devices in the stack configuration; a first interface in each stack device associated with one of the first ports and having a same real address as other first interfaces of other stack devices in the stack configuration, the first interface corresponding to one of the networks coupled to the stack devices, wherein each stack device concurrently configured to forward a packet received from the one network, the stack device to first receive the packet from the one network to forward the packet; and a second interface in each stack device associated with another one of the first ports and having a same real address as other second interfaces of other stack devices in the stack configuration, the second interface corresponding to another one of the networks coupled to the stack devices; wherein a first stack device routes a packet from the one network to a second stack device and the second stack device sends the packet to the another one of the networks.