How Is an OSPF Router ID Selected? How Is the Default Router ID Obtained?

Created: Apr 20, 2017 08:40:10Latest reply: Apr 20, 2017 14:04:28 1059 1 0 0
How Is an OSPF Router ID Selected? How Is the Default Router ID Obtained?
  • x
  • convention:

Adamcolob  Visitor   Created Apr 20, 2017 14:04:28 Helpful(0) Helpful(0)

When configuring an OSPF process, you can specify a router ID.

For example, you can run the ospf 1 router-id 1.1.1.1 command:

[~HUAWEI] ospf 1 router-id 1.1.1.1If no router ID is specified when the OSPF process is configured, the OSPF router ID is selected according to the following rules:

If one or more loopback addresses are configured, the router ID is the loopback address with the highest IP address.
If no loopback address is configured, the router ID is the physical interface with the highest IP address.
  • x
  • convention:

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