No relevant resource is found in the selected language.

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies. Read our privacy policy>Search

Reminder

To have a better experience, please upgrade your IE browser.

upgrade

AR Router Troubleshooting Guide

This Product Documentation provides guidance for maintaining AR Enterprise Router, covering common information collection and fault diagnostic commands, typical fault troubleshooting guide, and troubleshooting.
Rate and give feedback :
Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
What Sub-interfaces Can Be Configured on the Router?

What Sub-interfaces Can Be Configured on the Router?

Sub-interfaces are virtual interfaces configured on a physical interface to implement inter-VLAN communication.

Currently, the router supports the following types of sub-interfaces:
  • Ethernet sub-interface

  • Eth-Trunk sub-interface

  • PON sub-interface

  • ATM sub-interface

  • Frame relay (FR) sub-interface

  • Layer 2 sub-interface (used only in VXLAN scenarios in V200R008C30 and later versions)

More Information

  • Ethernet sub-interface: When a Layer 3 device connects to a Layer 2 network device through a Layer 3 Ethernet interface and interfaces on the Layer 2 network device are assigned to different VLANs, one primary IP address of the Layer 3 physical interface cannot implement inter-VLAN communication. You can configure a secondary IP address for the Layer 3 Ethernet interface or configure a sub-interface to solve this problem.
  • Eth-Trunk sub-interface: Assume that a Layer 3 device connects to a downstream Layer 2 network device through a Layer 3 Eth-Trunk and interfaces on the Layer 2 network device are assigned to different VLANs. To enable the Layer 3 Eth-Trunk to correctly identify packets from different VLANs so that users in these VLANs can communicate, you need to create sub-interfaces that correspond to VLANs of downstream users on the Eth-Trunk connecting the Layer 3 device to the Layer 2 network device.
  • PON sub-interface: You can configure sub-interfaces on PON interfaces of the router. To enable a PON interface to correctly identify packets from different VLANs so that users in these VLANs can communicate, you need to create sub-interfaces that correspond to VLANs of downstream users on the PON interface connecting devices.
  • ATM sub-interface: implements point-to-multipoint connection on an ATM link.
  • FR sub-interface: To implement multiple services such as MPLS and VPN on an interface with FR as the link layer protocol, you can configure these services on different FR sub-interfaces of the interface.
  • Layer 2 sub-interface: On a VXLAN network, you need to configure VXLAN service access points on a VXLAN network edge node. You can configure Layer 2 sub-interfaces to implement access service configuration on the service access points.
Translation
Download
Updated: 2019-05-10

Document ID: EDOC1000079719

Views: 448598

Downloads: 4305

Average rating:
This Document Applies to these Products
Related Documents
Related Version
Share
Previous Next