Got it

tests for cellular interfaces on redundancy

Latest reply: Nov 27, 2018 13:46:39 510 2 0 0 0

A cellular interface is a great gateway for redundancy options, you can set up a NQA test another gateway and in case it goes down, the cellular interface may be the option to failover to, for example:

nqa test-instance testerota icmp
 test-type icmp
 destination-address ipv4
 frequency 60
 probe-count 4
 datasize 20
 start now

interface Cellular0/0/0
 link-protocol ppp
 ppp ipcp dns admit-any
 ppp ipcp dns request
 dialer enable-circular
 dialer-group 7
 dialer timer idle 0
 apn-profile test
 dialer timer autodial 10
 dialer number *99# autodial
 standby track nqa test icmp
 ip address negotiate

So the interface will just work in case the address becomes unreachable, for which you can shut down the remote host or the exit interface.

If such an option is not feasible, you can also set up a floating static IP route to merely test the cellular interface, such as:

ip route-static Cellular0/0/0 preference 250

and customize the preference accordingly.

  • x
  • convention:

Created Nov 24, 2018 01:34:48

Nice Test, thanks for sharing!
View more
  • x
  • convention:

Created Nov 27, 2018 13:46:39

Any hash function can be used for redundancy checking. The simplest redundancy check is called check sum, which includes check bits, check codes, and longitudinal redundancy check (LRC, Longitudinal Redundancy Check). Other types of redundancy checks include cyclic redundancy checks (CRC), horizontal redundancy checks, vertical redundancy checks, and Cryptographic Message Digest.
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.