OSPF and balancing

Hi all

I have 2 - E1 links from place A to place b. I am running OSPF in the network.

For both the serial interface, I gave cost ospf as 100.

How can I configure loadbalancing over links series that takes place in OSPF?

Is - is my setup load balancing?

How to verify that OSPF is loadbalancing links?

Hello

You need not specifically configure OSPF to balance the load too long that the two links have the same administrative distance then your peer routers will learn the same routing information from two different IP addresses that are the opposite of your E1 links.

To check if you are balancing you can use 'show ip route '.

The following example uses EIGRP but this will output similar to OSPF with different codes and distance from the admin:

D [90/289536] 192.168.72.0/24 through 10.48.1.2, 1w2d, FastEthernet4/1/1

[90/289536] through 10.48.1.6, 1w2d, FastEthernet0/1/1

You can see that 192.168.72.0/24 is announced two IP addresses.

You can do per package or per destination load balancing, I think that by default on a fast router switching is enabled, which means the load balancing is done by destination. If you want to package you can disable the quick change on the interface in question using "no ip route-cache".

HTH

PJD

Tags: Cisco Network

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