Brocade Network OS Administrator’s Guide v4.1.1 - Manual (Page 252)

• Special characters in the port group names are replaced with the URL-encoded values.
• Standard port groups with the same name that reside in different ESX/ESXi hosts must have
identical VLAN settings across all hosts.
• For all vCenter port groups, Network OS automatically creates a port profile with the following
format: auto-vcenter_name-datacenter_ID-port-group-name. User editing of these auto port groups
is not supported.
• Network OS supports vCenter discovery that is based on events.
• Network OS supports LLDP and QoS (IEEE 8021.p) for distributed virtual switches (dvSwitches).
• Network OS supports up to 750 port groups in the vCenter.
• CDP/LLDP-receiving interface ports must not have any conflicting configurations (such as switch
port and FCoE port configurations) on the interface that prevent them from being in a port-profiled
mode.
• Before configuring a vCenter in the fabric, remove all the manually created port profiles that have
vCenter inventory MAC associations.
• For Network OS 4.0.0 versions, multiple data centers are supported, up to four data centers.
• Duplicate vCenter asset values are not supported, such as duplicate MAC addresses and duplicate
Host names.
vCenter discovery
A Brocade VDX switch connected to VMware ESX/ESXi hosts and virtual machines must be aware of
network policies in order to allow or disallow traffic; this requires a discovery process by the VDX
switch. During VDX switch configuration, relevant vCenters that exist in its environment and the
discovery of virtual assets from the vCenter occurs in the following circumstances:
• When a switch boots up
• When a new vCenter is configured on the VDX switch and activated (activation turns on the timer
processing, set to 30-minute intervals)
• When the discovery is explicitly initiated with the CLI
The following assets are discovered from the vCenter:
• Hosts and data centers associated with the vCenter
• Virtual machines (VMs) that have been created on the hosts
• VMware distributed virtual port groups (dvPortGroups)
• Standard port groups, with QoS priority associated with a dvPortGroup
• Standard virtual switches
• Distributed virtual switches
vCenter configuration
Configuring vCenter consists of three basic steps performed in this order:
1. Enabling VMware vSphere QoS.
2. Enabling CDP/LLDP on switches.
3. Adding and activating the vCenter.
These steps and postconfiguration steps are discussed in this section.
vCenter discovery
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