SplitSite Network Requirements

This topic describes the requirements for networks in a SplitSite configuration.

• A‑Link Network Requirements
• SplitSite Network Requirements
• Business Network Requirements
• Management Network Requirements

General Network Requirements

All network components in a SplitSite configuration must have more than 155 Mbps minimum capacity, end-to-end.

A‑Link Network Requirements

A-Link networks in a SplitSite configuration require the following:

• NICs must be at least 1 Gb and full-duplex; use 10 Gb, if possible.
• For systems running FT-protected virtual machines (VMs), A-Links require:
  • A minimum bandwidth of 1 Gbps per VM
  • A maximum inter-site latency of 2 ms, round-trip time
• For systems running only HA-protected VMs, A-Links require:
  • A minimum bandwidth of 155 Mbps per VM
  • A maximum inter-site latency of 10 ms, round-trip time
• Do not use a common card (multiport NIC) for both A-Links.
• A-Links can be dedicated point-to-point fiber connections.
• When fault-tolerant SMP is used, the A-Link networks must be a minimum of 1Gbps.

Business Network Requirements

Business networks in a SplitSite configuration require the following:

• The nodes must be in the same layer-2 multicast domain.
• Connect the business networks on each PM to a switch separate from the other PM’s switch.
• An everRun system requires at least one business network. All of these requirements apply to each business network.

Management Network Requirements

A management network in a SplitSite configuration requires the following:

• By default, the management network is shared with a business network. In this case, all requirements for a business network apply.

• Configure gateways to a business LAN for remote management.

Related Topics

SplitSite Configurations

Network Architecture Overview