QuestionQ8

Analyze and Optimize Network Performance

An administrator plans to deploy a Nutanix cluster to support a small number of high-performance VMs. The deployment has these considerations:

  • Individual VMs will probably generate network throughput of 90–100 Mbps.
  • Because of the VM configuration, a node is unlikely to host more than one or two of them at a time.
  • Individual VMs will communicate with only a few—one or two—remote hosts at a time.
  • Multicast will not be used in the environment.
  • The hosts are connected through two 1GbE network connections.

How should the administrator configure the network bonds to satisfy this requirement while keeping the switch configuration as simple as possible?

  • A Configure bond0 as balance-sib
  • B Configure bond0 as active-backup
  • C Configure bond0 as balance-tcp
  • D Configure bond0 as balance-lacp
Explanation

The balance-slb bond mode provides active-active MAC-pinning load balancing across the two uplinks without requiring switch-side LACP configuration. Its multicast-traffic caveat does not apply when multicast is not used, while the two uplinks can be utilized by the VM NICs. Nutanix documents balance-slb as active-active MAC pinning and distinguishes it from balance-tcp, which requires LACP and link aggregation.

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