Load sharing / balancing

[mohammedalrawiib]

Hi there ,

i am trying to do a lab in eve-ng with the following details :

i have 2 ISPS also in my LAN i have one route which is connected to the 2 ISPS, i have done the Natting and everything i am just stuck at load balancing and load sharing i cannot find the configuration of the router for load balancing or load sharing can anyone help me with that also clarify for my what is the difference between load balancing and load sharing (am using cisco routers).

Thank you in advance .

[Joseph W. Doherty]

". . . can anyone help me with that also clarify for my what is the difference between load balancing and load sharing (am using cisco routers)."

In practice they pretty much are no different but I believe load balancing goal is equal usage of multiple links while load sharing is just using multiple links.  What it means when you use multiple links, of different bandwidths, equal percentages relative to their bandwidth is at least also load sharing but is it also load balancing?

For further how to do what you want, we'll need more information about your configuration.

[Joseph W. Doherty]

Some links discussing the differences:

https://learningnetwork.cisco.com/s/question/0D53i00000Kt07vCAB/what-is-the-difference-between-load-balancing-and-load-sharing

https://community.cisco.com/t5/routing/what-is-the-difference-between-load-balancing-and-load-sharing/td-p/4439924

https://www.cisco.com/c/en/us/support/docs/ip/border-gateway-protocol-bgp/5212-46.html

https://www.techtarget.com/searchnetworking/answer/Load-sharing-vs-load-balancing-Whats-the-difference

Reading the foregoing, you may see the two terms are not exactly the same but also see application of the terms, for specific cases, might not always, if not often, be technically correct.

Both try to take advantage of multiple links.  Perhaps, load sharing is more about static distribution configuration vs. load balancing being dynamic distribution but even using that as criteria there's overlap in actual case examples.

As the most basic, load sharing, someway, takes advantage of "sharing" load across multiple links while load balancing, further, attempts to "balance" the sharing.

Back to what you may need to do to achieve one or the other depends on your network environment, and I don't believe we have sufficient information to make optimal recommendations.

[mohammedalrawiib]

Hi joseph ,

for the configuration of my LAN 

i have 1 router which is connected to 2 ISPS with nat overload i also want to do failover so when one isp goes down (track certain ip such as 8.8.8.8 ) i want to route everything to other isp thats the first thing ,also i'm using static routing for routing 

the thing that i want is to do load sharing between the 2 ISPS , if i am missing anything that u need will be glad to provide for you asap ,

btw am doing this lap in EVE-ng,

Thank you for your support .

[Joseph W. Doherty]

If you're doing static routing, often all you need to do to load share/balance is have an equal cost (default) static route statement to both ISPs' next hop.

[MHM Cisco World]

load sharing need from you split the LAN into two subnet
and use PBR to direct one subnet to one ISP and other use RIB (default route)

Dual WAN connection on Cisco with Policy-based routing (PBR) - Pierky's Blog

MHM

[ebenaven]

Hi @mohammedalrawiib suggests see this post

https://community.cisco.com/t5/routing/load-balancing-and-failover-for-isp-links/td-p/4037409

Let´s me know if this work for you lab.

Kind regards