Data Center LAN Migration Guide - Juniper Networks

Data Center LAN Migration Guide
SRX5800
GbE
MX Series
EX8216
Servers
Figure 2: Simpler two-tier data center LAN design
Juniper Networks offers a next-generation data center solution, shown in Figure 2, which delivers:
• Simplified design for high performance and ease of management
• Scalable services and infrastructure to meet the needs of a high-performance enterprise
• Virtualized resources to increase efficiency
This two-tier data center LAN architecture provides a more elastic and more efficient network that can also easily scale.
This guide covers the key considerations in migrating an existing three-tier data center network to a simplified, cloudready,
two-tier design. From a practical perspective, most enterprises won’t initiate a complete data center redesign
for an existing, operational data center. However, there are several events, such as bringing a new application or
service online or a data center consolidation, which require an addition to the existing data center infrastructure. We
call these common events at which migration can begin trigger events. Trigger events generate changes in design at a
given network layer, which we call an insertion point. In Chapter 3 of this guide, we cover the best practices and steps
involved for migration at each of the insertion points presented by a specific trigger event. By following these steps and
practices, it is possible to extend migration to other legacy network tiers and continue towards a simplified two-tier
Juniper infrastructure over time.
In summary, this Data Center LAN Migration Guide describes:
Core Layer
QFX3500 Switch
• Pre-migration information requirements
• Migration process overview and design considerations
• Logical migration steps and Juniper best practices for transitioning each network layer insertion point
• Troubleshooting steps
• Additional resources
8 Copyright © 2012, Juniper Networks, Inc.
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