Lenovo ThinkSystem NE2552E, Application Manual

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Chapter 14. Virtualization
Virtualization allows resources to be allocated in a fluid manner based on the
logical needs of the data center, rather than on the strict, physical nature of
components. The following virtualization features are included in Lenovo ENOS
8.4 on the NE2552E Flex Switch (NE2552E):
 Virtual Local Area Networks (VLANs)
VLANs are commonly used to split groups of networks into manageable
broadcast domains, create logical segmentation of workgroups, and to enforce
security policies among logical network segments.
For details on this feature, see “VLANs” on page 135 .
 Port aggregation
A port LAG pools multiple physical switch ports into a single, high ‐ bandwidth
logical link to other devices. In addition to aggregating capacity, LAGs provides
link redundancy.
For details on this feature, see “Ports and Link Aggregation (LAG)” on page 155 .
 Virtual Link Aggregation Groups (VLAGs)
With VLAGs, two switches can act as a single logical device for the purpose of
establishing port LAGs. Active LAG links from one device can lead to both
VLAG peer switches, providing enhanced redundancy, including active ‐ active
VRRP configuration.
For details on this feature, see “Virtual Link Aggregation Groups” on page 195
 Unified Fabric Port (UFP)
An architecture that logically subdivides a high ‐ speed physical link connecting
to a server NIC or to a Converged Network Adapter (CNA). UFP provides a
switch fabric component to control the NIC.
For details on this feature, see “Unified Fabric Port” on page 285 .
Lenovo ENOS virtualization features provide a highly ‐ flexible framework for
allocating and managing switch resources.