Collision detection method, device and network device of dual-master device in thermal staking system

A primary device and conflict detection technology, which is applied in the field of network communication, can solve problems such as insufficient network compatibility, user networking restrictions, and reduced availability of dual-active device detection technology to achieve the effect of meeting network compatibility requirements

Active Publication Date: 2012-10-10
RUIJIE NETWORKS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0014] In the above-mentioned BFD detection technology, the use of Layer 3 routing ports is required. Since Layer 2 devices do not support Layer 3 routing ports, BFD detection technology is not applicable to the hot stack system established by Layer 2 devices. In LACP detection technology, the LACP link is The establishment of cross-member devices requires that the devices at both ends of the LACP link be devices of the same manufacturer, which has restrictions on user networking and insufficient network compatibility; the free ARP detection technology requires the hot stack system to divide a dedicated virtual local area network (VLAN, Virtual Local Area Network) ) and switch virtual interface (SVI, Switch Virtual Interface) are used to send ARP packets, among them, VLAN is a technology that logically divides LAN devices into different network segments, and SVI is the virtual Internet address (IP, Internet Protocol) interface, one SVI can only be associated with one VLAN, and for a Layer 2 device, there is usually only one SVI for device management, so the ARP detection technology is not suitable for a hot stack system formed by Layer 2 network devices
[0015] To sum up, the dual-active device detection technology in the prior art is not suitable for a thermal stack system formed by two-layer devices, which reduces the availability of the dual-active device detection technology. Therefore, how to provide a dual-active device that is applicable to The thermal stacking system formed by Layer 2 equipment and Layer 3 network equipment and the dual-active equipment detection technology that meets the network compatibility requirements at the same time has become one of the technical problems to be solved urgently in the existing technology

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  • Collision detection method, device and network device of dual-master device in thermal staking system
  • Collision detection method, device and network device of dual-master device in thermal staking system
  • Collision detection method, device and network device of dual-master device in thermal staking system

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Embodiment 1

[0048] In order to better understand the embodiment of the present invention, in Embodiment 1, first receive the construction process of the thermal stacking system, which generally includes the following steps:

[0049] Step 1. Establish and configure the stack for the stand-alone device, including the stack domain number, device number (Switch ID), priority, device description, and stack port, etc.;

[0050] Step 2. Connect the stack ports configured by each device according to a certain topology through cables;

[0051] Step 3: The stack system performs operations such as topology collection and master device election;

[0052] After completing the above three steps, the stacking system is completed.

[0053] During implementation, in order to perform dual-active device detection after the topology split of the established stack system, it is also necessary to pre-configure detection ports. Specifically, according to the topology of the stack system, the is an edge device...

Embodiment 2

[0067] Embodiment 2 Based on Embodiment 1, a dual-active device conflict handling solution is provided. When the original active device of the hot stack system determines that there is a dual active device conflict, in order to ensure the normal operation of the network, it is necessary to conduct elections according to certain rules, keep one hot stack subsystem to continue working, and the other hot stack subsystem closes all services The port enters recovery mode to avoid network conflicts and other situations.

[0068] Specifically, such as Figure 9 As shown in , it is a schematic diagram of the election process for the primary device of the thermal stack subsystem after splitting, including the following steps:

[0069] S901. The original active device of the hot stack system sends a master election message to its peer detection port through the detection port;

[0070] Among them, the first election rule information of the original master device is carried in the host...

Embodiment 3

[0108] Such as Figure 14 As shown, it is a schematic structural diagram of a dual-active device conflict detection device in a thermal stacking system provided by an embodiment of the present invention, including:

[0109] The first receiving unit 1401 is configured to receive the LLDP packet sent by the detection port of the opposite end through the pre-configured detection port, and the LLDP packet carries the device identification of the active device of the hot stack system to which the detection port of the opposite end currently belongs ;

[0110] A judging unit 1402, configured to judge whether the device identifier carried in the LLDP message received by the receiving unit this time is the same as the device identifier carried in the last received LLDP message;

[0111] The determination unit 1403 is configured to determine that there is no dual-active conflict when the determination result of the determination unit is yes; and determine that there is a dual-active c...

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Abstract

The invention discloses a collision detection method, device and a network device of a dual-master device in a thermal staking system, and provides a dual-master device detection technology applicable to a thermal stacking system composed of a two-layer device and a three-layer device and meeting the network compatible requirement at the same time, and thus the availability of the dual-master device detection technology is improved. The method comprises the following steps: an original master device of the thermal staking system receives an LLDP (link layer discovery protocol) massage sent by an opposite end detection port through a detection port arranged in advance, wherein the LLDP massage carries a device identification of a master device of the thermal stacking system of the opposite end detection port at present; and the original master device determines whether the device identification carried in the LLDP massage received currently and the device identification carried in the LLDP massage received last time are identical, if so, the dual-master collision does not exist, and if not, the dual-master collision exists.

Description

technical field [0001] The present invention relates to the technical field of network communication, in particular to a method, device and network equipment for conflict detection of dual active equipment in a thermal stacking system. Background technique [0002] Nowadays, the capacity of the network is getting larger and larger, and there are more and more various terminal devices, so the number of network devices in some LANs is large. Although multiple independent switches can be used to meet the port requirements, this also causes inconvenience for users to use and manage, so the stacking technology emerges as the times require. Stacking technology is a common port expansion technology in switch equipment at present. It connects multiple devices together through stacking cables to form a logical device, so that users only need to manage one device and the number of access ports of the device is large. Increase and effectively reduce the work of network operation and m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/24H04L12/26
CPCY02B60/43Y02D30/00
Inventor 陈勇
Owner RUIJIE NETWORKS CO LTD
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