Users Guide

connect to the EVO:RAIL graphical user interface (GUI) by using either an IP address or a fully qualified

domain name (FQDN) configured on the local DNS server (for example, http://evorail.yourcompany.com:

7443).

Port 7443 reaches the EVO:RAIL graphical user interface (GUI) and port 9443 reaches the vSphere Web

Client on vCenter Server.

Table 5. Network configuration table

4 EVO:RAIL

Management

workstation or laptop

Configure your workstation or laptop with the preconfiguration IP address that

you decided to use, and entered in the EVO:RAIL Network Configuration Table

on Row 1.

Decide which browser you want to use.

VLANs

All vSphere vMotion, Virtual SAN, and VM traffic is tagged for the VLANs you specify during EVO:RAIL

Initial Configuration. For your convenience, the EVO:RAIL GUI prepopulates VLAN ID fields, but you can

easily change them to coordinate with the values on your TOR switch.

VLANs are highly recommended (but not required) in EVO:RAIL. The vSphere vMotion and Virtual SAN

networks cannot be routed. Dedicated VLANs are preferred to divide VM traffic. For example, you could

have one VLAN for Development, one for Production, and one for Staging. Each VM can be assigned to

one or more VLANs.

Multicast traffic

• IGMP Snooping software examines IGMP protocol messages within a VLAN to discover which

interfaces are connected to hosts or other devices interested in receiving this traffic.

• By using the interface information, IGMP Snooping can reduce bandwidth consumption in a

multiaccess LAN environment to avoid flooding an entire VLAN.

• IGMP Snooping tracks ports that are attached to multicast-capable routers to help manage IGMP

membership report forwarding. It also responds to topology change notifications.

• Disabling IGMP Snooping may lead to more multicast traffic on your network.

IGMP Querier sends out IGMP group membership queries on a timed interval, retrieves IGMP

membership reports from active members, and allows updates to group membership tables. By default,

most switches enable IGMP Snooping, but disable IGMP Querier.

VMware requires that IGMP Querier be run if IGMP snooping is enabled. Also, if Querier is not enabled

then snooping should not be enabled.

For IPv6, Multicast Listener Discovery (MLD) is essentially the same as Internet Group Management

Protocol (IGMP) in IPv4.

Configure VLANs on your TOR Switch(es)

1. Configure a Management VLAN on your TOR switch(es) and set it to allow IPv4 multicast and IPv6

multicast traffic to passthrough.

• Default Management VLAN:

Unless Dell preconfigured otherwise, all management traffic is untagged and must be able to go

over a Native VLAN on your TOR switch. Else, you will not be able to create the appliance and