Load balancing in Cisco router?

ribin.jones · ‎06-24-2010

Hi,

I got a Cisco 2811 with two HWICs connected to two ISP's and a WIC which is connected to internal. I have default route to both ISP's in the router configuration. How can I do load balancing so that half of my traffic go through one ISP and the remaining go via the other ISP?

- Ribin

Reza Sharifi · ‎06-24-2010

Hi Ribin,

You can load share your traffic using route maps. Have a look at this example on how to load share with 2 ISPs.

http://www.cisco.com/en/US/tech/tk365/technologies_configuration_example09186a00800945bf.shtml#conf4

HTH

Reza

ribin.jones · ‎06-25-2010

I think this example explains load balancing using BGP. I don't have BGP in place.

- Ribin

west33637 · ‎06-25-2010

Hello ribin. configure ip cef globally on the router and the router's switching process will automatically perform per destination load balancing over both default routes. You can also configure CEF to do per packet load balancing. on the interfaces configure ip load-sharing per-packet (depending on the ios version).

without IP cef, you'll still get perdestination load balancing by default.

paolo bevilacqua · ‎06-25-2010

Check:

http://www.cisco.com/en/US/tech/tk648/tk361/technologies_configuration_example09186a0080950834.shtml