03-20-2018 05:56 PM - edited 03-08-2019 02:20 PM
Hey all,
I'm a bit new to networking, but I have question that I've been wondering about...
If you are running EIGRP in your network (which seems MUCH simpler than OSPF), is there any reason to also configure OSPF on any interfaces if you are going solely all Cisco devices in your network?
I'm trying to understand why we would want to add complexity with your architecture with OSPF if we can just run EIGRP on everything.
thanks!
03-20-2018 06:12 PM
Hi,
There is no need to use any other protocol beside EIGRP if you are using only Cisco devices. If you are connecting a Cisco device to a non-Cisco device and want to use IGP, it needs to be OSPF or ISIS as other vendors don't support EIGRP. You can also run OSPF on all Cisco device and no need for a second routing protocol. So, you only need to run one protocol unless you are interfacing with other vendors or other Cisco devices that run a different protocol.
HTH
03-20-2018 06:22 PM - edited 03-20-2018 06:23 PM
Hi
I agree with Reza if your infrastructure is built with Cisco devices you could use EIGRP only, because it is Cisco proprietary, I remember rumors that EIGRP could be an open standard to be used on differents manufacters as well. OSPF or other Routing Protocol could be used if you have other brands, other case could be if you are merging 2 companies and you want to enable the communication between them through redistribution.
Other reason could be someone configured that a time ago and it is not longer used.
Hope it is useful
:-)
03-21-2018 08:55 AM
03-21-2018 11:41 PM
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