Deployment Guide

14 VxFlex Network Deployment Guide using Dell EMC Networking 25GbE switches and OS9
In this guide, the S5048F-ON switches are configured as a VLT pair. Part of a successful VLT deployment is
the use of a VLT backup link. The backup link monitors the connectivity between the VLT peer switches. The
backup link sends configurable, periodic keepalive messages between the VLT peer switches. Figure 9
shows that the out-of-band (OOB) management interface (ma1/1) is configured as a point-to-point link to fulfill
this requirement. Administrative access is performed in-band, on a isolated VLAN, and does not require this
port.
S5048F-ON OOB management interface used for VLT backup destination
3.3 IP addressing
Dell EMC VxFlex MDMs, SDSs, and SDCs can have multiple IP addresses and can reside on more than one
network. Multiple IPs provides options for load balancing and redundancy. VxFlex natively provides
redundancy and load balancing across physical network links when an MDM or SDS is configured to send
traffic across multiple links. In this configuration, each interface available to the MDM or SDS is assigned an
IP address, each in a different subnet. In this deployment guide, two networks are used for MDM and SDS
traffic. When each MDM or SDS has multiple IP addresses, VxFlex load balances more efficiently due to its
awareness of the traffic pattern.
Accounting for management networks and two data networks, each VxFlex Ready Node needs seven IPs
with the VMware vMotion network being optional:
• iDRAC Management – Used for administrative management of the VxFlex Ready Node through the
iDRAC interface.
• ESXi Management – Used to connect the host to vCenter and management.
• ESXi vMotion – Used to migrate virtual machines between ESXi hosts (optional).
• SVM Management – Used for administrative management of the SVM installed on each host.
• Data Network 1 SVM – Used by the SVM to access Data Network 1.
• Data Network 1 SDC – Used by ESXi as a VMkernel IP for data access to Data Network 1.
• Data Network 2 SVM – Used by the SVM to access Data Network 2.
• Data Network 2 SDC – Used by ESXi as a VMkernel IP for data access to Data Network 2