Cisco N2K-C2148T-ACC= Datasheet Page 5

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© 2013 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public Information. Page 5 of 19
Benefits
Architecture Flexibility
Unified server access architecture: The Cisco Nexus 2000 Series offers a highly cost-effective access-layer
architecture for 100 Megabit Ethernet, Gigabit Ethernet, 10 Gigabit Ethernet, mixed Gigabit Ethernet, and
10 Gigabit Ethernet servers; Ethernet or unified fabric; physical or virtual server; and rack or blade server
environments.
Flexible physical topologies: The Cisco Nexus 2000 Series architecture allows decoupling of the Layer 1
and 2 topologies, therefore providing flexibility in designing physical architectures, including ToR, middle-
of-row (MoR), and EoR deployments, while allowing quick expansion of network capacity and remote line-
card portability across multiple parent switches. It is also space-optimized for all these architectures.
Highly Scalable Access Layer
Today’s data centers must have massive scalability to manage the combination of an increasing number of
servers and a higher demand for bandwidth from each server. The Cisco Nexus 2000 Series increases the
scalability of the access layer to accommodate both sets of demands without increasing management points
within the network.
Massive scalability: A deployment of Cisco Nexus 2000 Series Fabric Extenders connected to a Cisco
Nexus 5000, Nexus 6000, or Nexus 7000 Series Switch supports highly scalable Gigabit and 10 Gigabit
Ethernet environments as shown in Table 2.
Layer 2 scalability: Reliance on Spanning Tree Protocol is eliminated between the fabric extender and the
parent switch, thus enabling a large, multipath, loop-free topology. Use of a single management entity to
support a large server domain allows policy to be enforced more efficiently and enhances Layer 2 data
center access scalability. Use of the Virtual PortChannel (vPC) feature also allows fast convergence and
effective use of bandwidth in Layer 2 environments.
Simplified Operations
Single point of management: The Cisco Nexus 2000 Series Fabric Extenders are remote line cards for a
Cisco Nexus parent switch. All device configurations are managed on the Cisco Nexus parent switch, and
configuration information is downloaded to the Cisco Nexus 2000 Series Fabric Extender using in-band
communication.
Software maintenance simplification: The Cisco Nexus 2000 Series software is embedded in the Cisco
Nexus parent switch software. The fabric extender is a ready-to-use device that automatically downloads
the software image from the Cisco Nexus parent switch in the same way that a line card downloads
software from the supervisor engine in a modular chassis. In-Service Software Upgrade (ISSU) on the
fabric extenders provides the capability to perform transparent software upgrades, reducing downtime and
allowing customers to integrate the newest features and functions with little or no effect on network
operation for Ethernet, storage, and converged network environments.
Switch feature consistency across a large number of servers: The Cisco Nexus 2000 Series forwards all
traffic to the parent Cisco Nexus switch over 10 Gigabit Ethernet fabric uplinks. Passing all traffic to the
parent switch allows traffic to be shaped according to policies established on the parent Cisco Nexus
switch with a single point of management. Standardizing on the Cisco Nexus switches allows data centers
to support the same switch features across the entire access layer with a single point of management.
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