Name: DCS-7280SR3M-48YC8-R Arista 7280R3 48x25GbE SFP 8x100GbE QSFP28 Switch
Brand: Arista
SKU: DCS-7280SR3M-48YC8-R
Price: 1.00 USD
Availability: InStock
Rating: 4.8 (125 reviews)

Product Overview
The Arista 7280SR3M-48YC8-R switch router offers 48 ports of 25GbE SFP connectivity alongside 8 QSFP28 100GbE ports. It is designed for high-density data center deployments with rear-to-front cooling airflow. This product supports both Layer 2 and Layer 3 switching, targeting aggregation and core network roles.

General Information
Brand	Arista
Condition	Refurbished

Technical Information
Switch Type	Layer 3, Managed Switch
Form Factor	Rack-Mountable
Mount Type	1U Rack
Switch Ports	48 x 25GbE SFP28,8 x 100GbE QSFP28
Port Type	25G SFP28, 100G QSFP28, USB Console, Serial Console (RJ-45)
Port Speed	25Gbps,100Gbps
UpLink Ports	8 x 100GbE QSFP28
POE Support	No
Switching Capacity	4 Tbps
VLAN Support	Yes
Max VLANs Supported	1-4094
Stackable	No
Layer Support	Layer 2, Layer 3
Connector Type	SFP28,QSFP28,RJ-45

Performance
Jumbo Frame Support	Up To 9216 Bytes

Management and Configuration
Routing Protocols	Static, OSPF, OSPFv3, BGP, IS-IS, VRRP, PIM-SM, PIM-DM, IGMP, MLD, Policy-Based Routing (PBR)
Remote Protocols	Yes
Management Interfaces	Console (RJ-45),SSH,HTTPS,SNMP,NETCONF,REST API (eAPI),USB
Security Features	Access Control Lists (ACLs),802.1X Authentication,AAA (RADIUS/TACACS+),SSH,Port Security,Dynamic ARP Inspection
Management Type	Out-of-Band,In-Band
Remote Management Protocol	SSH,HTTPS,SNMP,NETCONF,REST (eAPI)

Power & Cooling
Fans	Hot-swappable fans (Rear-to-Front airflow)

Physical Characteristics
Weight	3.00
Operating Temperature	0°C to 40°C

Miscellaneous
Eco Friendly	Yes
Assembly Required	No
Compliance Standards	WEEE, RoHS, CE, FCC

Product Description
The Arista 7280R3 48x25GbE SFP & 8x100GbE QSFP28 Switch Router is designed for scalable data center networking. It provides high-density 25 Gigabit Ethernet connectivity paired with 100 Gigabit uplinks suitable for aggregation and core layers. The rear-to-front airflow is optimized for specific cooling setups. This switch router is commonly deployed by network engineers in enterprise and service provider environments requiring efficient, high-bandwidth switching and routing. Key Features 48 25GbE SFP ports deliver dense, multi-gigabit connectivity. 8 100GbE QSFP28 ports support high-capacity uplinks or spine connections. Rear-to-front airflow orientation matches data center cooling requirements. Supports Layer 2 and Layer 3 switching functions for versatile network roles. Part number DCS-7280SR3M-48YC8-R identifies this specific configuration. This model provides a balanced combination of port density and uplink speed, fitting environments that require flexible and scalable network infrastructure. Its airflow design allows integration within rear-to-front cooled racks.

Use Cases
The Arista 7280R3 switch router is typically used in data center environments requiring high-density 25GbE connections with 100GbE uplink capabilities. It suits network engineers managing scalable campus or data center networks needing flexible switching and routing options. How It's Used: Aggregation switch in large data center networks with mixed 25GbE and 100GbE devices. Core switch deployment for enterprise networks requiring high-bandwidth uplinks. Integration into rear-to-front airflow racks in cooling-optimized data centers. Supporting Layer 3 routing functions for efficient traffic management across subnets. Connectivity for server access layers that need dense multi-gigabit ports. Interfacing with spine switches via 100GbE QSFP28 ports in leaf-spine architectures. Overall, this switch router functions as a key network element providing dense connectivity and uplink capacity. Its airflow orientation and port configuration make it suitable for data centers with specific cooling and performance requirements.

FAQ's
What type of ports does the DCS-7280SR3M-48YC8-R offer? This switch router provides 48 ports of 25 Gigabit Ethernet SFP and 8 ports of 100 Gigabit Ethernet QSFP28. These support high-density multi-gigabit connections and high-speed uplinks respectively. What does rear-to-front airflow mean for this switch? Rear-to-front airflow indicates the direction of air cooling, with intake at the rear and exhaust at the front. This design aligns with data center cooling setups using rear-to-front ventilation. Is the DCS-7280SR3M-48YC8-R suitable for Layer 3 routing? Yes, the Arista 7280R3 series supports both Layer 2 and Layer 3 switching capabilities, enabling routing functions within data center or enterprise networks. Can this model be used in leaf-spine network topologies? Yes, its combination of 25GbE access ports and 100GbE uplinks allows it to function effectively as a leaf or aggregation switch in leaf-spine architectures. What environments is this switch router designed for? It is designed for data center and enterprise network environments that require dense multi-gigabit connectivity and airflow optimized for rear-to-front cooling racks. How does the part number DCS-7280SR3M-48YC8-R identify this product? The part number specifies the Arista 7280R3 model with 48 25GbE SFP and 8 100GbE QSFP28 ports configured with rear-to-front airflow. It distinguishes this exact configuration within the 7280R3 series.