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


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


Troubleshooting Guide

CloudEngine 16800, 12800, 12800E, 8800, 7800, 6800, and 5800 Series Switches

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).
A Host Fails to Ping a VXLAN Layer 3 Gateway

A Host Fails to Ping a VXLAN Layer 3 Gateway

Problem Description

In Figure 19-1, Leaf1 and Leaf2 function as VXLAN Layer 3 gateways and a VXLAN tunnel is established between them.

The VBDIF interfaces on Leaf1 and Leaf2 are Up, but Host1 or Host2 fails to ping the corresponding gateway.

Figure 19-1 Distributed VXLAN gateway networking

Root Cause

When a CE6850HI, CE6850U-HI, CE6851HI, CE6860EI, CE7850EI, CE8850EI, or CE8860EI switch functions as a VXLAN Layer 3 gateway, configure a service loopback interface on the switch to loop back service packets of the VXLAN Layer 3 gateway.

Leaf1 and Leaf2 are CE6850HI switches. Therefore, service loopback interfaces need to be configured on them.


Configure a service loopback interface on a switch functioning as a VXLAN Layer 3 gateway.
<HUAWEI> system-view
[~HUAWEI] interface eth-trunk 2
[*HUAWEI-Eth-Trunk2] service type tunnel   //Enable the service loopback function on the Eth-Trunk.
[*HUAWEI-Eth-Trunk2] trunkport 10ge 1/0/1   //Add a member interface to the Eth-Trunk.
[*HUAWEI-Eth-Trunk2] commit
  • After service loopback is enabled on an Eth-Trunk, other services cannot be configured on the Eth-Trunk and its member interfaces.
  • Ensure that the Eth-Trunk bandwidth is at least twice the bandwidth required for transmitting VXLAN Layer 3 gateway traffic. For example, if traffic is sent from users to the gateway across the VXLAN network at a rate of 10 Gbit/s, add two 10GE interface to the Eth-Trunk that you want to use as the service loopback interface.
Updated: 2020-01-07

Document ID: EDOC1000060766

Views: 614257

Downloads: 2962

Average rating:
This Document Applies to these Products

Related Version

Related Documents

Previous Next