Preventing downtime with cellular connectivity comes in different shapes and sizes
The debate surrounding failover is no longer a question on whether it’s important or not. Preventing downtime is a key aspect of protecting a company’s bottom line. These days the bigger question regarding business continuity centers on which type of failover to utilize for your specific needs.
There are three main ways to set up failover through cellular connectivity — each with its own unique merits in certain circumstances:
When downtime is financially and operationally unacceptable — which is always — many companies with hundreds or even thousands of locations use Cradlepoint adapters to provide overlay failover. It converts a cellular signal to Ethernet to provide the location’s traditional wired-line router a second “wired” WAN connection instead of one.
In this scenario, the two WAN connections are always live, with the traditional router determining when failover is necessary. This is a major boon for companies that need reliable failover but don’t have the time, budget or need to completely overhaul their network architecture. Overlay failover is a simple, effective solution. Another cost benefit, if Cradlepoint’s NetCloud Manager is being used, is the ability to route Out-of-Band Management (OOBM) through a console cable connected between the adapter and the console port of the existing router.
Primary router multi-WAN failover
In both brick-and-mortar locations and in-vehicles Cradlepoint routers can provide a business with a primary source of connectivity that can decide when to failover on its own. The devices have WAN Diversity, which is the convergence of LTE, Ethernet (DSL, Cable, T1, MetroE), and Wi-Fi-as-WAN in a single networking solution. And with dual-modem (or 3 or more WAN source) devices allow for failover from one LTE connection to another LTE connection, or from wired line to LTE, then to the second LTE connection, Wi-Fi, or any configuration the customer desires. In vehicles, the ruggedized routers facilitate LTE to Wi-Fi failover, too. IT managers can select WiFi as the No. 1 modem priority, which enables Wi-Fi-as-WAN to automatically take over whenever available and LTE to activate while on the road.
Router + LTE failover
Virtual Router Redundancy Protocol (VRRP) enables a network failover solution option: Internet failover and router failover at the same time. VRRP is a layer 3 protocol that provides automatic default gateway selections on an IP network. In other words, if the main wired router fails because of hardware or software, the entire network automatically fails over to the Cradlepoint router — with the LAN and WAN uninterrupted.
Learn more about how to prevent downtime in our 6 Wireless Failover Strategies for Enterprise Branch Continuity white paper.