Design Reference

Figure 59: Small core — multi-tenant
The following list outlines the benefits of the fabric connect-based solution:
• Endpoint provisioning
• Fast failover
• Simple to configure
• L2 and L3 virtualized
Hosted data center management solution — ETREE
In some hosted data center solutions, the hosting center operating company takes responsibility for
managing customer servers. For this shared management, shown in the following figure, servers
that control the operating system level of the production servers, such as the patch level, are
deployed. Because customer production servers do not communicate with each other, a distributed
private VLAN solution based on fabric connect is deployed to manage all production servers. This
solution builds a distributed set of ETREEs for each management domain.
VSP 9000, ERS 8000, VSP 7000 as core and VSP 4000 as access, provide an elegant network-
wide ETREE solution. Spokes, or managed servers, cannot communicate to each other over this
network, but the shared management servers on the hub ports can access all spokes. Because of
the Layer 2 – ETREE nature of this setup, the managed servers do not require any route entries,
and only require one IP interface in this management private VLAN. This solution supports tagged
and untagged physical and virtual (VM) servers.
SPBM design guidelines
116 Network Design Reference for Avaya VSP 4000 Series June 2015
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