Why Do NIC’s Have Multiple RJ45 Ports?
In: Technology
In the Server world it’s often practical to have multiple NIC ports.
They are either used to connect to multiple networks (For instance a Storage Network, a DMZ for increased security, and and LAN network) but this is more often accomplished with VLANing (different conversation entirely)
The other reason is failover and load balancing. Multiple NICs are ‘bonded’ together using a load-balancing algorithm to give you better performance (2gb/s instead of 1gb/s) and failover, so if one port fails you stay online.
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