CATALYST 9300 48-PORT UPOE NETWORK ESSENTIALS

Catalyst 9300 48-Port UPOE Network Essentials

The Catalyst 9300 48-Port UPOE Network Essentials is a high‑performance, rack‑mountable managed switch that delivers robust Layer 2 and Layer 3 capabilities for modern enterprise networks. Designed to support demanding environments—from data centers to campus campuses—it combines powerful switching fabric with advanced security, quality of service (QoS), and virtualization features.

Key Physical Characteristics

• Dimensions: Height 44 mm; Width 445 mm; Depth 445 mm – a compact footprint that fits easily into standard 1U or 2U rack spaces.
• Weight: Lightweight construction for easy handling during installation.
• Color: Sleek grey finish that blends seamlessly with enterprise infrastructure.
• Environmental Ratings: Operates from –5 °C to +40 °C (ambient) and tolerates humidity levels of 5 %–90 %. Storage temperature ranges from –40 °C to +70 °C, ensuring reliability in varied climates.
• RoHS‑5 Certified: Environmentally friendly design compliant with stringent hazardous substances restrictions.

Port and Power Specifications

• 48 RJ‑45 Gigabit Ethernet Ports: Each port supports 10/100/1000 Base‑T speeds, full duplex operation, and is capable of delivering up to 30 W per port via UPOE (Universal Power Over Ethernet).
• UPOE Capability: Provides power over the same cabling used for data, simplifying deployment by eliminating separate power supplies for PoE devices.
• Stacking and Uplink Ports: Built‑in stack ports enable high‑availability configurations; uplink ports support aggregation and redundancy when paired with other Catalyst switches.

Switching Performance

• Switching Capacity: 256 Gbit/s – sufficient for heavy traffic loads and high‑density environments.
• Forwarding Rate: 190.48 Mpps (million packets per second) ensures low latency and efficient packet handling.
• Packet Buffer Memory: 16 MB of buffer memory allows the switch to absorb traffic bursts without packet loss.
• Jumbo Frame Support: Up to 9,198 bytes per frame enhances throughput for large data transfers and storage networking.

Memory and Storage

• RAM: 8 GB of volatile memory provides fast access to routing tables and VLAN databases.
• Flash Memory: 16 TB (likely a typo; intended as 16 MB) for storing the operating system, configuration files, and firmware updates.
• Routing Table Capacity: Supports up to 32,000 routing entries, enabling complex network topologies.
• MIB Support: Full Management Information Base support allows comprehensive SNMP monitoring and management.

Layer 2 Features

• VLANs: Supports up to 4,094 VLAN identifiers, providing extensive segmentation for security and traffic isolation.
• IEEE Standards Compliance: Implements IEEE 802.1D (STP), 802.1Q (VLAN tagging), 802.1p (priority tagging), 802.1s (MSTP), 802.1w (Rapid STP), 802.1x (port‑based authentication), and more.
• MAC Address Table: Holds up to 32,000 entries for efficient forwarding decisions.
• Access Control Lists (ACLs): Enables granular traffic filtering at the port level.
• DHCP Snooping: Protects against rogue DHCP servers and ensures correct IP address allocation.

Layer 3 Features

• Static Routing: Supports static routes for straightforward network design.
• Dynamic Routing Protocols: Compatible with OSPF, EIGRP, and BGP for scalable routing in larger networks.
• IP Addressing: Full IPv4 support; IPv6 capabilities are available via firmware updates.
• Routing Table Capacity: Up to 32,000 entries ensures robust path selection even in complex topologies.

Quality of Service (QoS) and Traffic Management

• Traffic Prioritization: Supports IEEE 802.1p priority tagging to classify traffic into eight classes.
• Bandwidth Management: Implements rate limiting, policing, and shaping for bandwidth‑constrained environments.
• Multicast Support: Efficient handling of multicast streams via IGMP snooping and PIM support.

Security Features

• 802.1X Port‑Based Authentication: Enforces device authentication before network access.
• DHCP Snooping: Prevents unauthorized DHCP servers from distributing IP addresses.
• ACLs and VLAN Segmentation: Provides layered security through traffic filtering and isolation.

Management and Monitoring

• SNMP Support: Full SNMP v1/v2c/v3 capabilities for network management systems.
• MIB Compliance: Comprehensive MIB set allows detailed monitoring of performance metrics.
• CLI and Web Interface: Dual access methods enable configuration via command line or graphical interface.

Deployment Scenarios

• Enterprise Core Switch: Handles high‑density uplinks, providing a robust backbone for campus or data center networks.
• Access Layer in Campus Networks: Offers PoE power to VoIP phones, wireless access points, and security cameras while maintaining low latency.
• Industrial Automation: Rugged design and wide temperature range make it suitable for factory floor deployments where environmental conditions vary.

Conclusion

The Catalyst 9300 48-Port UPOE Network Essentials delivers a balanced mix of performance, flexibility, and security. Its extensive Layer 2/Layer 3 feature set, combined with PoE power delivery and robust QoS mechanisms, makes it an ideal choice for organizations seeking to build scalable, secure, and efficient network infrastructures.