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To create a highly available solution, the network must be resilient to the loss of a single network switch, network interface card (NIC), or bad cable. To achieve this, the network configuration uses channel bonding across the servers and switches.
There are several types (or modes) of channel bonding, however only one is recommended and supported for this solution: 802.3ad or LACP (mode=4)
The endpoints for all nodes are terminated to switch ports that have been configured for LACP bonding mode, across two Dell EMC S5248F-ON’s configured with VLT across them. For details about network configuration on the servers, contact your Dell Technologies services and sales representative.
Node type |
Channel Bonding type |
Infrastructure nodes |
802.3ad (LACP mode 4, channel fast) |
Cloud nodes |
802.3ad (LACP mode 4, channel fast) |
|
|
Multiple bonds may be created on the servers for separating critical types of traffic from each other and allocate them on different physical interfaces.
The actual layout depends on the particular cluster configuration and is out of the scope of the Reference Architecture.