shrikar.dange Mon, 01/14/2008 - 00:09
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hi,

There are TWO main types of dual homing:

1)Two connections from the same service provider.

2)Two connections from different service provider.

Using powerfull BGP attributes you can load balance the traffic between these two connections.


for your refference:


http://www.cisco.com/en/US/tech/tk365/technologies_configuration_example09186a00800945bf.shtml


HTH


regards,


shri :)

bvsnarayana03 Mon, 01/14/2008 - 00:47
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A site having 2 links for connecting to internet either via same ISP or different ISP is said to be Multihomed site. This is done in order to achieve load-balancing & redundancy between the links.


This requires the owner of the site to have a Public AS number & a owned Public IP pool.


The site would than run BGP with the 2 ISP's to achieve the purpose. BGP uses some of its attributes to provide load-balancing & redundancy.


Link provided by Shri is a nice one. you may go thru it for further reading.

aravindhs Mon, 01/14/2008 - 05:44
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Hi


Peering with the same ISP with two separate peering-points is Dual Homing.


Peering with two or more different ISPs is Multi-Homing.


Cheers

arav

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