What is IP OSPF priority?
What is IP OSPF priority?
Default priority for an OSPF interface is 1. The range is from 0 to 255. 0 means that the interface does not involve in the DR election.
How do I set IP for priority OSPF?
Use the ip ospf priority [1 – 255] command to set the priority to a value between 1 and 255. Use the ip ospf priority 0 command to configure the router to never function as the designated router or backup designated router. Use the no ip ospf priority command to set the priority at the default value of 1.
What is the highest OSPF priority?
The OSPFv2 router assigned the highest priority becomes the designated router, and the OSPFv2 router with the second-highest priority becomes the backup router. If you set the priority to 0, the device does not participate in DR and BDR election. The no form of the command restores the default value.
What is the significance of a 255 interface priority?
A priority of 1 means the routing device has the least chance of becoming a designated router. A priority of 255 means the routing device is always the designated router.
What is one reason to use ip OSPF priority command?
Explanation: The OSPF priority can be set to a number between 0 and 255. The higher the number set, the more likely the router becomes the DR. A priority 0 stops a router from participating in the election process and the router does not become a DR or a BDR.
Which is elected first BDR or DR?
If no router is a DR or a BDR on a given subnet, the BDR is first elected, and then a second election is held for the DR. What are the criteria for the DR election process? The DR is elected based on the following default criteria: If the priority setting on an OSPF router is set to 0, it can never become a DR or BDR.
What is one reason to use IP OSPF priority command?
Why BDR is elected first in OSPF?
If two or more routers tie with the highest priority setting, the router sending the hello with the highest Router ID wins. Typically, the router with the second highest priority number becomes the BDR. The priority values range between 0 – 255, with a higher value increasing its chances of becoming DR or BDR.
What is ABR OSPF?
An area border router (ABR) is a kind of router that is located near the border between one or more Open Shortest Path First (OSPF) areas. It is used to establish a connection between backbone networks and the OSPF areas.
What is Dr BDR and DROther?
The router with DR priority 0 can only be a DROther. If the routers have the same DR priority, the router with the largest router ID becomes the DR, the router with the second largest router ID becomes the BDR, and other routers become DR others.
What is difference between ABR and Asbr?
Area border router (ABR) A router that connects one or more areas to the OSPF backbone. Autonomous system border router (ASBR) A router that is connected to one or more logical entities (AS), usually through an exterior routing protocol such as BGP.