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16 years 6 months ago #25856 by Chojin
Replied by Chojin on topic Re: info needed

As far as I know, the order in which routes are selected is as follows:

1. The most specific route is selected among all routes that cover the destination address of the packet.

If more than one route match then:

2. The route with the lowest Administrative Distance is chosen.

If more than one route has the same AD:

3. The route with the lowest metric is chosen.

If more than one route has the same metric:

4. The router chooses any route arbitrarily or load balance between them.

So, As Chojin said it will choose the most specific route. And thats a priority before the Administrative Distance. So even if the EIGRP route had it's normal AD (90, or any thing) and the static route had AD 1. It will still choose the EIGRP route if it's the most specific. As it will also choose the static one if it's the most specific.

Experts please correct if wrong.


AD is chosen over specificness.

E.G. a /8 EIGRP route will be chosen over a /32 OSPF route (90 vs 110 if I'm not wrong)

CCNA / CCNP / CCNA - Security / CCIP / Prince2 / Checkpoint CCSA
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16 years 6 months ago #25858 by m2r007
Replied by m2r007 on topic Re: info needed
equal load balance or unequal guyzz?????????
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16 years 6 months ago #25863 by S0lo
Replied by S0lo on topic Re: info needed

AD is chosen over specificness.

E.G. a /8 EIGRP route will be chosen over a /32 OSPF route (90 vs 110 if I'm not wrong)


If you were right then a default route will always win since it has an AD of 1

check this guide, page 86: www.routeralley.com/ra/completed/ccna_studyguide.pdf

Studying CCNP...

Ammar Muqaddas
Forum Moderator
www.firewall.cx
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16 years 6 months ago #25877 by Chojin
Replied by Chojin on topic Re: info needed

AD is chosen over specificness.

E.G. a /8 EIGRP route will be chosen over a /32 OSPF route (90 vs 110 if I'm not wrong)


If you were right then a default route will always win since it has an AD of 1

check this guide, page 86: www.routeralley.com/ra/completed/ccna_studyguide.pdf


Seems you're right... thanks for clearification!

CCNA / CCNP / CCNA - Security / CCIP / Prince2 / Checkpoint CCSA
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16 years 6 months ago #25878 by S0lo
Replied by S0lo on topic Re: info needed

Seems you're right... thanks for clearification!


Sure no prob!! :)

equal load balance or unequal guyzz?????????


Not sure about this. I remember that IGRP and EIGRP would do unequal metric load balancing. RIP however does not. But I'm not so sure.

Studying CCNP...

Ammar Muqaddas
Forum Moderator
www.firewall.cx
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