by default when we configure unequal cost load balancing with EIGRP it load balances inversely proportional to the metric. So in other words, lower metric links get more traffic and higher metric links get less traffic. The other piece of the puzzle is how you have your router actually configured to do load balancing in general -- per packet or per session with per session being the default. As far as your question goes I don't have a specific answer for you there, but I would imagine that sort of thing is happening behind the scenes somewhere in the control plane.
On Sun, Nov 15, 2009 at 1:23 AM, Solomon Ayele <[email protected]> wrote: > dears, > I am confused with how the EIGRP variance command works. > I know that it is used to installed unequal cost routes with metric as big > as the variance multiplied by the best route provided that the feasiblity > condition is there. It is also used to send the traffic in proportion with > the metric. Here is my question, routing protocols are used to select the > best path and install it in the routing table. the switching mechanisms do > the load balancing. So in case of EIGRP how can the underline switching > technology know of the ratio and does the unequal load balancing? > Rs > Solomon > > > _______________________________________________ > For more information regarding industry leading CCIE Lab training, please > visit www.ipexpert.com > > -- Regards, Joe Astorino CCIE #24347 (R&S) Sr. Technical Instructor - IPexpert Mailto: [email protected] Telephone: +1.810.326.1444 Live Assistance, Please visit: www.ipexpert.com/chat eFax: +1.810.454.0130 IPexpert is a premier provider of Classroom and Self-Study Cisco CCNA (R&S, Voice & Security), CCNP, CCVP, CCSP and CCIE (R&S, Voice, Security & Service Provider) Certification Training with locations throughout the United States, Europe and Australia. Be sure to check out our online communities at www.ipexpert.com/communities and our public website at www.ipexpert.com
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