Got it

If the Physical Layer Is Up, Why Cannot the Link Layer Be Up?

Latest reply: Apr 13, 2017 06:57:08 1151 2 0 0 0


I want to know if the physical layer is up, why cannot the link-layer be up?


  • x
  • convention:

Created Apr 13, 2017 03:45:20

View more
  • x
  • convention:

Created Apr 13, 2017 06:57:08


This section lists frequently asked questions and their answers.

The possible causes include:
Authentication fails.
If IPCP is selected in NCP, the IP address needs to be assigned.
In the interconnection with other devices, the negotiation requirements for the both differ (you can set some negotiation fields).

Hope to help you!

View more
  • x
  • convention:


You need to log in to comment 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 " User Agreement."

My Followers

Login and enjoy all the member benefits


Are you sure to block this user?
Users on your blacklist cannot comment on your post,cannot mention you, cannot send you private messages.
Please bind your phone number to obtain invitation bonus.
Information Protection Guide
Thanks for using Huawei Enterprise Support Community! We will help you learn how we collect, use, store and share your personal information and the rights you have in accordance with Privacy Policy and User Agreement.