NIC teaming

PCIE_NIC cardWhat is NIC Teaming

NIC teaming is the process of combining multiple network cards together for performance, load balancing, and redundancy reasons. Use NIC teaming to group two or more physical NICs into a single logical network device called a bond. NIC teaming is also called as Load Balancing FailOver (LBFO), bandwidth aggregation, traffic failover, and so on. 

Benefits of NIC teaming

NIC teaming helps in:

• Load balancing — Outgoing traffic is automatically load balanced based on destination address between the available physical NICs.

• Fault tolerance — If one of the underlying physical NICs is broken or its cable is unplugged, server/target host detects the fault condition and automatically move traffic to another NIC in the bond.

  Custom attributes of NIC teaming for RHEL 7

  The nic_teaming custom attribute for RHEL 7 consists of the following:

• Teams — Defines multiple NIC teaming data.

• TeamName — Defines the name of a particular NIC team. For example, team0, TeamA, team_1, and so on.

• Filter — Defines the filter type. The valid filter types are InterfaceName and MacAddress.

  RHEL 7 NIC teaming script fails if you provide any invalid filter type.

   

  The following is the sample of nic_teaming custom attribute:

  {
      "Teams" : [
             {
                   "TeamName" : "team0" ,
                   "Filter" : "InterfaceName" ,
                   "SlaveInterface" : ["ens33", "ens34"]
             },         
            {
                   "TeamName" : "teamA" ,
                   "Filter" : "MacAddress" ,
                   "SlaveInterface" : ["00:11:22:33:44:BB", "22:33:56:99:80:47"] 
  }
  ]
  }

  You can Buy USB to ethernet NIC adapter here https://amzn.to/3cm5MXH