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

Enterprise
Community Forums Switches
Two eth-trunk sub-interfa...

Two eth-trunk sub-interface directly connected but can't ping each other

Latest reply: Aug 31, 2018 13:52:04 425 7 0 0
display all floors #1
The topology is this : S6700(eth-trunk100.100)----S6700(eth-trunk100.100). The configuration of interface is below: SW1: interface Eth-Trunk100 undo portswitch # interface Eth-Trunk100.100 dot1q termination vid 100 ip address 172.16.0.1 255.255.255.252 SW2: interface Eth-Trunk100 undo portswitch # interface Eth-Trunk100.100 dot1q termination vid 100 ip address 172.16.0.2 255.255.255.252 The issue is that ping from SW1 to SW2 is not reachable. checking the ARP table and found that can't learning peer arp information; Solution is that: add the arp broadcast enable command on the sub-interface eth-trunk. interface Eth-Trunk100.100 arp broadcast enable The reason is that: VLAN tag termination sub-interfaces discard broadcast packets after receiving the packets. To permit a VLAN tag termination sub-interface to forward broadcast packets, run the arp broadcast enable command on the sub-interface to enable ARP broadcast. This post was last edited by Barret at 2018-08-05 21:07.
  • x
  • convention：

Helpful (0) Favorite(0) Share Report
Created Aug 5, 2018 21:52:04 Helpful(0) Helpful(0)

:)
  • x
  • convention：
MVE Created Aug 6, 2018 15:12:13 Helpful(0) Helpful(0)

Two eth-trunk sub-interface directly connected but can't ping each other-2715627-1
  • x
  • convention：
Telecommunications%20Engineer%2C%20currently%20senior%20project%20manager%20of%20the%20radio%20access%20network%20and%20partner%20of%20Huawei%20de%20Tunisia.
Created Aug 21, 2018 21:21:23 Helpful(0) Helpful(0)

Why not? Two eth-trunk sub-interface directly connected but can't ping each other-2732625-1
  • x
  • convention：
Created Aug 31, 2018 13:51:33 Helpful(0) Helpful(0)

Posted by user_3143595 at 2018-08-21 21:21 Why not?
The reason is that: VLAN tag termination sub-interfaces discard broadcast packets after receiving the packets. To permit a VLAN tag termination sub-interface to forward broadcast packets, run the arp broadcast enable command on the sub-interface to enable ARP broadcast.
  • x
  • convention：
Created Aug 31, 2018 13:51:39 Helpful(0) Helpful(0)

Posted by user_3143595 at 2018-08-21 21:21 Why not?
The reason is that: VLAN tag termination sub-interfaces discard broadcast packets after receiving the packets. To permit a VLAN tag termination sub-interface to forward broadcast packets, run the arp broadcast enable command on the sub-interface to enable ARP broadcast.
  • x
  • convention：
Created Aug 31, 2018 13:51:52 Helpful(0) Helpful(0)

Posted by user_3143595 at 2018-08-21 21:21 Why not?
The reason is that: VLAN tag termination sub-interfaces discard broadcast packets after receiving the packets.
  • x
  • convention：
Created Aug 31, 2018 13:52:04 Helpful(0) Helpful(0)

Posted by user_3143595 at 2018-08-21 21:21 Why not?
The reason is that: VLAN tag termination sub-interfaces discard broadcast packets after receiving the packets.
  • x
  • convention：
Back to list

Reply

Reply
Advanced
B Color Image Link Quote Code Smilies
You need to log in to reply to the post Login | Register

Notice: To protect the legitimate rights and interests of you, the community, and third parties, do not release content that may bring legal risks to all parties, including but are not limited to the following:
  • Politically sensitive content
  • Content concerning pornography, gambling, and drug abuse
  • Content that may disclose or infringe upon others ' commercial secrets, intellectual properties, including trade marks, copyrights, and patents, and personal privacy
Do not share your account and password with others. All operations performed using your account will be regarded as your own actions and all consequences arising therefrom will be borne by you. For details, see " Privacy."
If the attachment button is not available, update the Adobe Flash Player to the latest version!

Login and enjoy all the member benefits

Login
Huawei Website Support About Huawei Privacy Terms of Use
Huawei Enterprise Huawei Carrier Forum Training & Certification

Copyright © 2019 Huawei Technologies Co., Ltd. All rights reserved.

Fast reply Scroll to top