Method and unit for creating layer three interface

A technology of interfaces and sub-interfaces, which is applied in the field of creating three-layer interfaces, can solve the problems of restricting user configuration and use, configuration incompatibility, etc.

Active Publication Date: 2013-11-06
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this approach obviously greatly limits the user's configuration and use, and is not compatible with other manufacturers' product configurations.

Method used

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  • Method and unit for creating layer three interface
  • Method and unit for creating layer three interface

Examples

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Embodiment Construction

[0052] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0053] figure 1 The flow chart of the method for creating a three-layer interface provided by the embodiment of the present invention, such as figure 1 As shown, the specific steps are as follows:

[0054] Step 101: Create a layer-3 Ethernet interface on the device. For each layer-3 Ethernet interface, set on the chip where the interface is located: the layer-2 message received from the corresponding physical port of the interface is prohibited from sending to all external ports of the chip. Port forwarding, and Layer 2 packets from any other port are prohibited from being forwarded to the physical port corresponding to the Layer 3 Ethernet interface; at the same time, it is set on the chip where the interface is not located: Layer 2 packets from the physical port corresponding to the interface are prohibited from forwarding to the p...

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Abstract

Providing a VLAN virtual interface of a default VLAN as a VLAN virtual interface of a layer-3 Ethernet interface provided on an apparatus, assigning an interface MAC address for the layer-3 Ethernet interface, setting a layer-3 interface entry including at least the interface MAC address of the layer-3 Ethernet interface and a VLAN ID of the default VLAN, providing a VLAN virtual interface of a layer-3 Ethernet sub-interface provided on the apparatus based on a binding VLAN of the layer-3 Ethernet sub-interface, assigning an interface MAC address to the layer-3 Ethernet sub-interface, setting a layer-3 sub-interface entry including at least the interface MAC address of the layer-3 Ethernet sub-interface and a VLAN ID of the binding VLAN, receiving a packet from one interface of the apparatus, and performing layer-3 forwarding for the packet if the layer-3 interface entry or the layer-3 interface entry matching with a destination MAC address and a VLAN ID of the packet.

Description

technical field [0001] The invention relates to the technical field of message transmission, in particular to a method and a unit for creating a three-layer interface. Background technique [0002] Generally, the Ethernet interface supported on the switch device is a Layer 2 Ethernet interface. This type of interface is a physical interface on the device, working at the data link layer, processing layer-2 protocols, and implementing layer-2 fast forwarding; correspondingly, a layer-3 Ethernet interface is also a physical interface on the device, working on the network Layer, which can configure Internet Protocol (IP, Internet Protocol) addresses, process Layer 3 protocols, and provide routing functions. [0003] Some Ethernet interfaces can work in Layer 2 mode (bridge) or Layer 3 mode (route) according to the different processing levels of the data packets received by the interface. Such an interface is called a Layer 2 / 3 switchable Ethernet interface. When the Ethernet ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/70H04L12/46H04L29/12H04L49/111H04L45/74
CPCH04L61/2038H04L12/4679H04L61/6022H04L61/5038H04L2101/622H04L49/354
Inventor 王明辉李捷黄易
Owner NEW H3C TECH CO LTD
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