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Eigrp over mpls

Us this widely done? When would one choose eigrp over bgp, for connections to service provider (l3 vpn)
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Faruk Onder Yerli

8/22/2022 - Mon
ASKER
orus

I mean choose eigrp in place of bgp
Don Johnston

Depends on the provider.

Some providers require BGP. Others are more flexible.
ASKER
orus

if you had a choice between both, which would you use?

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Don Johnston

How many routes will you be sending/receiving?

Is the routing protocol being run between two devices in the same AS or different AS's?
Faruk Onder Yerli

eigrp is cisco protocol. Because of it you may not use with all provider. I recommend that you may use OSPF over MPLS. it is working well and you are independence provider vendor equipment.
ASKER
orus

7 remote sites
different AS
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Faruk Onder Yerli

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ASKER
orus

Right now we are running OSPF within each of our LANs. Our edge devices (Qwest MPLS) peer eBGP to provider. Our edge devices are also doing mutual redistribution

I was just wondering if it makes more sense to use OSPF to our provider instead, since we are relatively small

thanks
Don Johnston

If you're not exchanging large numbers of routes, and your provider allows it, run any protocol you want.

Personally, I like OSPF for an IGP.
ASKER
orus

so if we're running multi area OSPF with a process ID of 1, our provider will form an adjaceny with a different process number?
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Faruk Onder Yerli

if the 7 remote office is connected in same MPLS network, you may redistribute OSPF over MPLS. the most important case there you need check exchange routes quantity. If the 7 brunch connection stability is ok and not much load over them, OSPF will be better solution. BGP and eigrp give better solution over saturated networks.
Don Johnston

Process ID's are locally significant only. One router never knows what process ID another is using.
Faruk Onder Yerli

infact you can collect all different area in one ospf process. But finally provider will redistribute over BGP. You will get just one peer in each brunch for OSPF.  
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