Patent ID: 8935409
Filing Date: 2015-01-13
Classification: H04L

Abstract:
1. A method for controlling flow in a stack system, wherein the stack system comprises multiple chassis, each of the multiple chassis comprises a main control board to process a control flow, a switch fabric board to process a traffic flow, and a first interface board, wherein the traffic flow and the control flow in each of the multiple chassis are independent of each other when each of the multiple chassis operates normally, the method comprising: when a main control board in a chassis in the stack system is unavailable, switching the control flow to be transferred to a destination interface board from a control flow channel to a traffic flow channel corresponding to the destination interface board via the switch fabric board, and transmitting the control flow to the destination interface board through the traffic flow channel via the switch fabric board, wherein the control flow is to be transferred by the first interface board in the chassis, and the first interface board comprises a traffic processing unit to process the traffic flow and a control channel processing unit to process the control flow, when the first interface board is an interface board without a stack port, the switching of the control flow from the control flow channel to the traffic flow channel corresponding to the destination interface board comprises: