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jskfan

asked on 1/7/2013

Can a router run BGP and IGP(ospf,eigrp,rip) at the same time

I wonder how routes get from on router to another within the same AS (IBGP) and between different ASes(EBGP).
Is neighbor command the one that makes routes converge between IBGP and EBGP routers or we need to configure IGP (ospf.eigrp.rip) on each router in addition to BGP?

THANKS

Routers

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jskfan

8/22/2022 - Mon

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jskfan

1/8/2013

ASKER

if I understand:

1****Companies don't use BGP at all unless if they have 2 primary links to 2 different ISPs, in this case I believe ISPs engineers can configure BGP for the company.
IGP is supposed to be used by the company, unles if it is a small company and they use static routes . I don't think BGP works with static routes...Correct?

2**** between ISPs (Autonomous Systems), do they have to use IGP (ospf.eigrp.rip), in their routers, in order to get BGP routes carried between their routers?

I have seen some, video courses(CBTs) and they don't show that IGP is configured in each router inside BGP AS.

Thanks

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jskfan

1/9/2013

ASKER

what I wanted to know, whether is mandatory to have each router within BGP AS run a routing protocol ?

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1/9/2013

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ASKER CERTIFIED SOLUTION

1/9/2013

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jskfan

1/9/2013

ASKER

Thank you

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