load balancing for serial and ethernet

[taquiahmed]

I have 2 links on my 1751 router one serial link connected to serial interface and the other is wireless link connected to ethernet port. How can I have load balancing between these two links, I will be use default routes for both the links.

[Harold Ritter]

Assuming CEF is enabled (should be by default), traffic will be load balanced between the two routes. By default CEF will do per session load sharing (source IP/Dest IP). If you want do find out which one of the two next hop is used by any src/dst address, use the following command:

show ip cef exact-route

Hope this helps,

[ruwhite]

As long as the routing protocol sees both routes as equal cost, and installs them in the routing table... You may have to adjust the delay, bandwidth, or cost on a serial link/ethernet link pair to get both routes installed in the routing table.

:-)

Russ.W

[Harold Ritter]

I'm assuming that he means static routes when he writes "default route for both links". I could be wrong though.

[taquiahmed]

yes I am using default routes

ip route 0.0.0.0 0.0.0 192.168.196.93

ip route 0.0.0.0. 0.0.0.0 192.168.196.173

[taquiahmed]

How do I adjust delay, bandwidth on serial/ethernet?

[ruwhite]

If you're using statics, you don't need to worry about it. If you're using eigrp, you use the bandwidth and delay commands under the interface configuration mode. For other routing protocols, you would use the metric configuration commands under the interface configuration mode.

:-)

Russ.W