Hangzhou H3c Technologies Co., Ltd

Hewlett-packard Development Company, L.P.

Xiaolong Hu

Yong Wang

Pengju Wang

Yiquan Yang

The present invention discloses a method of multi-active detection and a stack member device. Each member device in a stack is configured with a detection interface that is assigned an IP address, wherein the IP address of the detection interface on the designated active device is activated. Each member devices is also configured with an active device election rule, and with a correspondence between the IP address of the detection interface on each member device and the active device election parameter of the member device. Upon detection that the stack has become split, each designated standby device transitions to become an active device and activates the IP address of its detection interface. Each active device then uses the IP address of its detection interface as the source IP address to establish a session with other active devices, finds the active device election parameter according to the source IP address in the received session packet, and elects an active device that maintains its active state according to the configured active device election rule. The present invention implements multi-active detection in a stack.

Multi-active detection method and stack member device

The invention provides a topology collection method and dual control board device applicable to a stacking system comprising dual control board devices. A master control board of a dual control board device advertises through a stack port the topology information of the member device in which the master control board resides, including information about the master control board and, if a slave control board is present, information about the slave control board; and stores the topology information or updates the existing topology information upon receiving the topology information of the stacking system through the stack port, and backs up the stored topology information of the stacking system to the slave control board after the slave control board is inserted. This invention is applicable for collecting the topology information of a stacking system comprising distributed dual control board devices.

Topology collection method and dual control board device for a stacking system

The invention provides a method and switching device for configuring stack ports. A switching device in a stacking system searches in the neighbor information table to determine whether the neighbor ID carried in a stack link negotiation packet is contained in the table after it receives the stack link negotiation packet on one of its physical ports that is enabled with the stacking function. If the neighbor ID is contained in the table, the switching device adds the physical port to the stack port corresponding to the neighbor ID in the neighbor information table; if it is not contained in the table, the switching device creates a stack port not in use, creates a binding between the neighbor ID and the stack port, and adds the physical port to the stack port. The present invention can automatically configure stack ports, greatly reducing the configuration work of administrators, and avoiding stacking device faults caused by manual configuration errors at the same time.

Method and switching device for stack port configuration

Embodiments of the present invention disclose a method for detecting multiple Active devices in a stack. In the method, a new Active device generates a Link Aggregation Control Protocol (LACP) packet when a stacking link is in failure, the LACP packet contains a bridge MAC address and a member number of the new Active device; the new Active device transmits the LACP packet to a stacking member through an access switch; and the stacking member detects collision of multiple Active devices according to the MAC address and the member number and enters a Recovery state. In the present invention, by containing the bridge MAC, the Active ID and the configuration dividing identifier in the extended field of the LACP packet, the collision of multiple Active devices in a distributed stack can be detected.

Method, system and apparatus for detecting multiple active devices in stack

The present invention discloses a method for processing multiple active devices in a stacking system. In the method, each active device in a stacking system exchanges unique identity information with any another active device through a preconfigured Bidirectional Forwarding Detection (BFD) session when a stacking link in the stacking system is in failure, determines an active priority of its own by comparing unique identity information of its own with the unique identity information received; and the active device stops providing services as an active device when determining that the active priority of its own is not the highest priority. The present invention also discloses a member device in the stacking system. The present invention can solve the collision of multiple Active devices, and is applicable to both a stacking system including two member devices and a stacking system including more than two member devices.

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Beijing, China

Xiaolong Hu