Load Balancing over WAN Links

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Jan 22nd, 2009
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Scenario:


- Two Sites

- Each site has two routers connecting both the sites

- At each site, Router 1 has two leased lines connected and Router 2 has one. Thereby making it three WAN links between the sites.


How can I achieve load balancing on the WAN links to ensure uniform link utilization. Only one destination exists for the communication between the sites. Packet sharing is a risky option. What is the safest way to load share on the WAN links in the given scenario.


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Collin Clark Thu, 01/22/2009 - 14:41
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Are you using a routing protocol?

cisco_lite Sat, 01/24/2009 - 07:10
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I readup some materials. Please let me know if the following seems to be a good option


1) Use multilink PPP for aggregation of serial links on the routers across both the sites

2) Configure GLBP/HSRP on the inside ethernet interfaces on all the routers.


With #1, even utilization of the WAN links within the router shall be ensured. And with #2, the traffic hitting the router on the inside will be load balanced.


Please advise.

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