Some solutions may provide additional parameters in their software. Load balancing at 100%-0% is virtually the same as failover. One ISP may be considered more efficient or less expensive than another. There are different reasons for ISP load balancing. But it can also be accomplished the old fashioned way, using routers or Linux servers that are manually configured. The matter at hand, load balancing multiple ISP connections, can be done very simply using GUI selections in many off-the-shelf appliances. Internet service providers use balancing strategies to handle fluctuating amounts of inbound internet traffic, and load balancing the cloud has its own peculiar aspects. The principles of load balancing remain the same in any environment, although the circumstances and implementations will vary. The remaining active link (or links) takes over the traffic from the failed link. But no matter the load balancing configuration, failover works the same way. Load balancing may be weighted 80%-20% or 50%-50%, or set up using any of the other load balancing methods discussed in F5’s white paper “Load Balancing 101: Nuts and Bolts”. If two ISP links are set up so that the primary link takes 100% of the traffic, then there is no load balancing implemented. (The term outbound may be a misnomer, since the internet connections established through ISP links are actually bi-directional.) Failover means that when the primary connection is down, the secondary connection takes over.įailover means that when the primary connection is down, the secondary connection takes over.
Of course, balancing ISP links means that there are two or more internet connections in place. Outbound load balancing is bound up with the requirement for failover protection. But for some businesses, uninterrupted internet access is mission critical. The Need for RedundancyĪs individuals, we have all become dependent on the internet. So continue reading if you too are looking for a solution. While Total Uptime does not provide this type of outbound load balancing, we’re often asked for our recommendations on this subject.
But what about traffic that goes outbound from the client or internet user or your office? The wide area network (WAN) or internet links going from a site to multiple internet service providers (ISP) can also be load balanced. When people think of load balancing, they usually think about traffic that is inbound to the server or a network. We wrote about the implementation of load balancing in the cloud in a 2017 blog post. Or too much traffic may cause congested links or overwhelmed devices to become unusable. Sometimes primary connections will go down. Internet Load Balancing and Failover for Multiple ISP LinksĬontrolling traffic is a key facet of internet management.
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