A multi-homed network connects to more than one upstream internet provider simultaneously, rather than relying on a single connection.
Redundancy Benefits
If one upstream provider has an outage or degraded performance, traffic automatically shifts to the other, avoiding a complete loss of connectivity.
Performance Benefits
Multi-homing also allows traffic to take whichever path currently offers the best performance to a given destination, rather than being locked into one provider's routing.
Why It's Standard for Serious Hosting
Any hosting infrastructure aiming for genuine high availability treats a single upstream connection as an unacceptable single point of failure.
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