How do I view the OSPF cost and Preference on the AR router

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The display ospf lsdb command displays OSPF LSDB information.
The display ospf brief command displays brieft OSPF information.

Other related questions:
How do I configure OSPF area authentication on the AR router
Run the system-view command to enter the OSPF view. Run the ospf [ process-id ] command to enter the OSPF process view. Run the area area-id command to enter the OSPF area view. Run the authentication-mode simple [ plain plain-text | [ cipher ] cipher-text ] command to configure an authentication mode in the OSPF area. plain specifies the plain-text password. cipher specifies the cipher-text password. In MD5/HMAC-MD5 mode, the default value is cipher. Run the authentication-mode { md5 | hmac-md5 | hmac-sha256 } [ key-id { plainplain-text | [ cipher ] cipher-text } ] command to configure an authentication mode in the OSPF area. md5 indicates MD5 cipher-text authentication. hmac-md5 indicates HMAC-MD5 cipher text authentication. hmac-sha256 indicates HMAC-SHA256 cipher text authentication. key-id specifies the ID in cipher text authentication. Run the authentication-mode keychain keychain-name command to configure Keychain authentication in an OSPF area. Notes: To use the Keychain verification mode, configure the Keychain information in the system view. Ensure that the values of key-id, algorithm, and key-string in ActiveSendKey of the local and remote ends are the same so that OSPF neighbor relationships can be established.

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.

How is the cost of an OSPF interface calculated
The principles of calculating the cost of an OSPF interface are as follows: The cost configured on the interface is preferred. If no cost is configured on the interface, the formula for calculating the cost of the interface is as follows: Cost = Reference bandwidth/Interface bandwidth. The default reference bandwidth of OSPF is 100 Mbit/s. For example, the cost of a 10 Mbit/s Ethernet interface = 100 Mbits per second/10 Mbits per second = 10. If the calculation result is smaller than 1, the cost is set to 1. For example, the cost of a GE interface is 100 Mbits per second/1000 Mbits per second = 0.1, which is less than 1. Therefore, the cost of this interface is 1. The default cost on the loopback interface, which is a virtual interface, is 0.

How do I view the NAT session table on the AR router
Run the display nat session all command to check NAT session table information.

Calculating the cost of an OSPF interface on the firewall
Calculating the cost of an OSPF interface on the USG2000&5000&6000 series as follows: The cost configured on the interface is preferred. If no cost is configured on the interface, the formula for calculating the cost of the interface is as follows: Cost = Reference bandwidth/Interface bandwidth. The default reference bandwidth of OSPF is 100 Mbit/s. For example, the cost of a 10 Mbit/s Ethernet interface = 100 Mbits per second/10 Mbits per second = 10. If the calculation result is smaller than 1, the cost is set to 1. For example, the cost of a GE interface is 100 Mbits per second/1000 Mbits per second = 0.1, which is less than 1. Therefore, the cost of this interface is 1. The default cost on the loopback interface, which is a virtual interface, is 0.

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