Cisco Cisco Prime Virtual Network Analysis Module (vNAM) 6.3 White Paper
3-5
Cisco Virtualized Multiservice Data Center (VMDC) Virtual Services Architecture (VSA) 1.0
Design Guide
Chapter 3 VMDC VSA 1.0 Design Details
VMDC Building Blocks
topology is modified to move the L3 boundaries to the centralized PE/WAN edge router and the per-tenant
virtual CE routers in the compute layer. Similarly, service appliances move from the aggregation layer to
the compute layer. In this case, one can consider the L3VPN gateway (PE routers) as a pod boundary.
virtual CE routers in the compute layer. Similarly, service appliances move from the aggregation layer to
the compute layer. In this case, one can consider the L3VPN gateway (PE routers) as a pod boundary.
Another option is to define a pod along access switch (leaf node) boundaries. Alternatively, one can
define a compute pod, built along UCS system boundaries. In this release, because a tenant footprint is
hosted across a number of Compute or Access switching systems, we depict a pod as extending from the
compute layer across the entire data center FabricPath domain, up to and including trunks to ports on the
PE/WAN edge routers (DC Pod,
define a compute pod, built along UCS system boundaries. In this release, because a tenant footprint is
hosted across a number of Compute or Access switching systems, we depict a pod as extending from the
compute layer across the entire data center FabricPath domain, up to and including trunks to ports on the
PE/WAN edge routers (DC Pod,
Figure 3-3
DC Pod in VMDC VSA 1.0
Integrated Compute Stacks
An Integrated Compute Stack (ICS) represents another potential unit of modularity in the VMDC cloud
data center, representing a subcomponent within the pod. An ICS is an integrated collection of storage,
compute, and network resources, up to and including L2 ports on a pair of access switching nodes.
data center, representing a subcomponent within the pod. An ICS is an integrated collection of storage,
compute, and network resources, up to and including L2 ports on a pair of access switching nodes.
shows the location of the ICS in a pod. Multiple ICSs are deployed like building blocks to
fill the capacity of a pod. This optimizes flexibility and allows Data Center Operations to incur CAPEX
costs on a pay as you grow basis.
costs on a pay as you grow basis.