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ARP request message processing method and apparatus

An ARP request and packet processing technology, applied in the field of network communication, can solve problems such as aggravating the CPU pressure of the device, and achieve the effect of reducing the CPU performance pressure, reducing the number, and reducing the CPU pressure.

Active Publication Date: 2018-01-05
XINHUASAN INFORMATION TECH CO LTD
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  • Claims
  • Application Information

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Problems solved by technology

If the VLANs corresponding to the QinQ termination function include: 400 public network VLANs and 3000 private network VLANs, it means that 400*3000 or 120,0000 ARP request packets need to be broadcast through the interface enabled with the QinQ termination function. A large number of ARP request packets will greatly increase the pressure on the CPU of the device

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  • ARP request message processing method and apparatus
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  • ARP request message processing method and apparatus

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Embodiment Construction

[0032] As described in the background, when a Layer 3 network device such as a gateway in the QinQ termination network receives a packet, if there is no local ARP entry matching the packet, it will broadcast an ARP request packet. Among them, when a Layer 3 network device broadcasts an ARP request message through an interface with the QinQ termination function enabled, it generates ARP request messages whose number is equal to the number of VLANs in the VLAN termination configuration corresponding to the QinQ termination function and enables Interface forwarding with the QinQ termination function enabled. pass below figure 1 The networking shown is described as an example.

[0033] exist figure 1 In the shown networking, the routing device (Router) 13 is a layer-3 network device, for example, a gateway device. The switching device 11 is connected to the following three hosts: host A, host B, and host C. Among them, host A is in VLAN21 with an IP address of 1.1.1.1 / 24, host...

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Abstract

The invention provides an ARP request message processing method and apparatus. An ARP request message sent to a public network VLAN and an ARP request message sent to private network VLAN are executedon different devices in stages, three layers of network devices enable an interface of a QinQ ending function to send the ARP request message to the public network VLAN in the VLAN ending configuration corresponding to the QinQ ending function, a switching device accessing a host sends the ARP request message to different private network VLANs instead of executing the operation on the three layers of network devices that enable the QinQ ending function just like the prior art, this obviously greatly reduces the number of the ARP request messages broadcasted by the three layers of network devices by enabling the interface of the QinQ ending function, and relieves the CPU performance pressure.

Description

technical field [0001] The present application relates to network communication technology, and in particular to an address resolution protocol (ARP: Address Resolution Protocol) request packet processing method and device applied in QinQ termination networking. Background technique [0002] In the QinQ termination network, when a Layer 3 network device such as a gateway receives a packet, if there is no local ARP entry that matches the packet, it broadcasts an ARP request packet. Among them, when a Layer 3 network device determines that it needs to broadcast an ARP request message through an interface with the QinQ termination function enabled, it generates ARP request messages whose number is equal to the number of VLANs in the VLAN termination configuration corresponding to the QinQ termination function and passes the ARP request message through the Interface forwarding with QinQ termination enabled. [0003] VLAN termination configuration refers to the VLANs that can be...

Claims

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Application Information

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IPC IPC(8): H04L29/12
Inventor 吴文汪亮
Owner XINHUASAN INFORMATION TECH CO LTD