When we use Huawei NE series routers, we sometimes encounter problems. How can these problems be solved? We provide the Troubleshooting Guide to help you.
If you encounter A User Fails to Establish a Netconf Session, perform the following steps:
1. Check the SSH connection.
Run the display ssh server status command to check whether the SSH connection is successful.
<HUAWEI> display ssh server status
SSH Version : 1.99
SSH authentication timeout (Seconds) : 60
SSH authentication retries (Times) : 3
SSH server key generating interval (Hours) : 0
SSH version 1.x compatibility : Enable
SSH server keepalive : Disable
SFTP server : Disable
STELNET server : Disable
SNETCONF server : Enable
SNETCONF server port(830) : Disable
SCP server : Enable
SSH server port : 22
ACL name :
ACL number :
ACL6 name :
ACL6 number :
SSH server source address : 0.0.0.0
If SNETCONF server is displayed as Disable in the command output, the SSH connection fails. For details about how to troubleshoot the failure, see the chapter "SSH Troubleshooting" in the document. If SNETCONF server is displayed as Enable in the command output, go to Step 2.
2. Check whether client and server can exchange hello packets.
Run the display netconf session command and check whether the NETCONF session is established successfully. If the session is established successfully, hello packets are successfully exchanged between the client and server, go to Step 3.
<HUAWEI> display netconf session
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NETCONF Session ID : 303
Transport : netconf-ssh
User Name : root1234
Host Identifier : 172.16.1.1
Login Time : 2017-06-29 19:57
Input Rpc : 0
Input Bad Rpc : 0
Output Rpc Error : 0
Output Notification : 0
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3. Collect the following information and contact technical support personnel.
§ Results of the preceding troubleshooting procedure.
§ Configuration files, log files, and alarm files of the devices.
For more troubleshooting cases, see: NE40E Troubleshooting Guide V4.0 (VRPv8)
https://support.huawei.com/enterprise/en/doc/EDOC1000177634
