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.


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).
How Do I Handle a Service Exception on an E1-F Link?

How Do I Handle a Service Exception on an E1-F Link?

If a service exception occurs on an E1-F link, the most possible cause is that the local and remote interfaces are configured with different CRC modes. By default, AR routers use 16-bit CRC mode. Devices from many other vendors may use 32-bit CRC mode. As a result, the local and remote devices cannot communicate.

Run the crc { 16 | 32 | none } command to configure the local interface to work in the same CRC mode as the remote interface. In addition, ensure that both the local and remote devices are grounded using ground cables.

Ground points on AR routers have the same appearance. The ground point on the AR151 is taken as an example, as shown in Figure 29-15.

Figure 29-15 Ground point on the AR151

The more service exception cause please see A Connected E1 Interface Cannot Go Up.

Updated: 2019-08-09

Document ID: EDOC1000079719

Views: 494070

Downloads: 4527

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