Load Balance in router ethernet interfaces

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Jun 1st, 2007
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Hi guys,


I have a cisco 2800 with 2 ethernets.

How can i configure same ip on both, plug one in my first switch and second ethernet in second switch and both do a load balance and fail over ?


Thanks.


Fred

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Anand Narayana Fri, 06/01/2007 - 22:42
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implement HSRP that is the best solutions to load balance.

Amit Singh Fri, 06/01/2007 - 22:51
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Anand,


You can not implement HSRP on a single router interfaces. Original poster is looking for load-balancing between the same router's ports.


Please see my post below for this :


http://forums.cisco.com/eforum/servlet/NetProf?page=netprof&forum=Network%20Infrastructure&topic=LAN%2C%20Switching%20and%20Routing&CommCmd=MB%3Fcmd%3Ddisplay_location%26location%3D.1ddea6a7


HTH,Please rate if it does.


-amit singh

fred_m Sat, 06/02/2007 - 05:59
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Amit,


Your tip is not my case.

Let me explain better.


I have two switches cisco and all of my servers have two NIC's. I plug each NIC on differnt switch, but i need do a trunk link between because i have only one inteface to my route.


So i want plug eth0 router interface in switch A and eth1 in switch B and remove this trunk.


Both eth0 and eth1 have same ip address.

If one of switches stop to work my network isn't impacted.


Thanks.


Fred


mohammedmahmoud Sat, 06/02/2007 - 06:04
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Hi Fred,


Amit's suggestion is almost your only chance, as you can't have 2 Ethernet interfaces with the same IP subnet on a single router.



HTH, please do rate all helpful replies,

Mohammed Mahmoud.

fred_m Sat, 06/02/2007 - 06:11
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Mohammed,


I thinked that exist some way like HSRVP to solve this question.


Thanks.


Fred

mohammedmahmoud Sat, 06/02/2007 - 06:15
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Fred,


No, you can not implement HSRP on a single router, and further more you can't use the same IP (or even 2 IPs from the same IP subnet) on 2 different interfaces on the same router, and thus Amit's suggestion is almost your only choice.



HTH,

Mohammed Mahmoud.

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