How to check whether the configured OSPF router IDs conflict

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For details about how to check whether the configured OSPF router IDs conflict, see FAQ-How to Determine that Configured OSPF Router IDs Conflict.

Other related questions:
How to check whether the IP addresses of interfaces in an OSPF area conflict
For details about how to check whether the IP addresses of interfaces in an OSPF area conflict, see FAQ-How to Determine that the IP Addresses of Interfaces in an OSPF Area Conflict.

How to check whether an ARP Conflict Occurs ?
Run the display logbuffer command to display the system log and check whether the ARP conflict occurs, resulting in slow network access.

How to check whether configured deep security defense security takes effect on an AR router
If the configuration procedure of deep security defense is correct, simulate an attack to verify whether the configured deep security defense takes effect.

How do I view the broadband account of the AR router
Run the display current-configuration command to check the configuration file of the AR router. 1. When the AR router functions as the PPPoE server and "local-user user1@system service-type ppp" is queried, user1@system is the user name of the local account. 2. When the AR router functions as the PPPoE client and "ppp chap user user1@system" or "ppp pap local-user user1@system password" is queried, user1@system is the user name of the local account.

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