In the Cisco Unified Computing System (UCS) architecture, Fabric Extenders (FEX) play a crucial role in extending the connectivity and simplifying the network topology within the data center. Understanding which UCS devices provide connectivity to Fabric Extenders is essential for designing scalable and efficient UCS deployments.
1. UCS 6300 Series Fabric Interconnects (Option B):
Role in UCS Architecture:
The UCS 6300 Series refers to Fabric Interconnects, which are central components in the UCS architecture.
Fabric Interconnects manage and control the network traffic between UCS servers, Fabric Extenders, and external networks.
Connectivity to Fabric Extenders:
Fabric Extenders are directly connected to Fabric Interconnects.
The UCS 6300 Series Fabric Interconnects provide the necessary network and storage connectivity to Fabric Extenders, allowing for seamless communication between Blade Servers and the broader network infrastructure.
Key Features:
Scalability: Supports multiple Fabric Extenders, enabling the expansion of network ports without increasing the complexity of the network.
Centralized Management: Simplifies management by allowing administrators to configure and monitor all connected Fabric Extenders through the Fabric Interconnects.
High Availability: Designed with redundancy features to ensure continuous network connectivity and minimize downtime.
2. UCS 6400 Series Fabric Interconnects (Option A):
Role in UCS Architecture:
The UCS 6400 Series also pertains to Fabric Interconnects, typically offering higher port densities and enhanced capabilities compared to the 6300 Series.
These Fabric Interconnects are designed to support larger deployments and provide more extensive connectivity options.
Connectivity to Fabric Extenders:
Similar to the 6300 Series, the 6400 Series Fabric Interconnects serve as the primary connection points for Fabric Extenders.
They facilitate the aggregation of network traffic from multiple Fabric Extenders, ensuring efficient data flow and management.
Key Features:
Enhanced Performance: Offers higher throughput and more robust handling of network traffic, suitable for large-scale data centers.
Increased Port Density: Supports a greater number of ports, allowing more Fabric Extenders and network devices to be connected.
Advanced Features: May include additional functionalities such as improved security features, better integration with storage networks, and enhanced monitoring capabilities.
Why the Other Options Are Incorrect:
C. UCS E-Series Servers:
E-Series pertains to Ethernet and storage networking solutions within the UCS ecosystem, such as switches and other networking devices.
While they play a vital role in the overall UCS network infrastructure, they do not directly provide connectivity to Fabric Extenders. Instead, Fabric Interconnects manage the connections to Fabric Extenders.
D. UCS S-Series Storage Servers:
S-Series refers to storage servers designed to integrate with UCS for storage solutions.
These storage servers are typically connected to the network via Fabric Interconnects and do not directly interface with Fabric Extenders.
E. UCS B-Series Servers:
B-Series are Blade Servers that reside within UCS Blade Enclosures.
While Blade Servers connect to Fabric Extenders through the Fabric Interconnects, they do not themselves provide connectivity to Fabric Extenders. Instead, they are the endpoints that benefit from the connectivity provided by FEX through the Fabric Interconnects.
Visual Representation:
+----------------------+ +------------------------+
| UCS Fabric Inter- | <-----> | Fabric Extenders |
| connect (6300/6400) | +------------------------+
+----------------------+
|
|
+----------------------+ +------------------------+
| Blade Servers | | External Networks |
| (B-Series) | +------------------------+
+----------------------+
Fabric Interconnects (6300/6400 Series) connect directly to Fabric Extenders (FEX).
Blade Servers (B-Series) are housed within UCS Enclosures and connect to FEX through the Fabric Interconnects.
External Networks interface with Fabric Interconnects to facilitate broader network communication.
Summary:
UCS 6300 Series and UCS 6400 Series Fabric Interconnects are the primary UCS devices that provide connectivity to Fabric Extenders (FEX).
These Fabric Interconnects manage and control the network traffic between FEX and Blade Servers, ensuring efficient and scalable network infrastructure within the UCS environment.
Other UCS devices like E-Series and S-Series serve different roles within the UCS ecosystem and do not directly provide connectivity to Fabric Extenders.
Therefore, the correct answers are Options A and B: UCS 6400 Series and UCS 6300 Series.
