Does the RN856 support stacking and what are the limits?

Yes, it supports resilient stacking up to 12 systems with optional modules, delivering up to 184 Gbps per stack. Features auto-negotiation, LACP (IEEE 802.3ad), and Link Aggregation for up to 18 static/8 dynamic groups with 8 members each, ideal for scalable campus fabrics.

What security and QoS features does the PowerConnect 6224 provide?

Security includes 802.1x edge authentication, 100 ACLs (127 ACEs each), RADIUS/TACACS+, MAC lockdown, and SSLv3/SSHv2. QoS offers Layer 2/3/4 trusted modes, 8 priority queues per port, WRR scheduling, rate limiting, and flow-based policies for precise traffic management.

Is PoE supported on the Dell RN856 switch?

The base RN856 6224 model does not include PoE, but the 6224P variant supports up to 15.4W per port on all 24 ports with optional external power supply. Suitable for powering VoIP phones, WAPs, and video devices in PoE-dependent deployments.

RN856 - Dell PowerConnect 6224 Switch

Name: RN856 - Dell PowerConnect 6224 Switch
Brand: Dell
SKU: RN856
Price: 178 USD
Availability: InStock

RN856 - Dell PowerConnect 6224 Switch | US IT Hardware

Product overview

The Dell PowerConnect 6224 (RN856) is a high-performance Layer 3 stackable switch designed for enterprise networking environments. Featuring 24 auto-sensing 10/100/1000BASE-T Gigabit Ethernet ports and 4 shared SFP combo ports for fiber connectivity, it provides 136 Gbps switching fabric capacity and 95 Mpps forwarding rate for non-blocking performance. Supports resilient stacking of up to 12 units with up to 184 Gbps per stack, enabling scalable deployments. Advanced features include IEEE 802.1Q VLANs (up to 1024), QoS with 8 priority queues, IGMP snooping, LACP link aggregation (up to 18 static/8 dynamic groups), and security via 802.1x, ACLs (100 ACLs/127 ACEs), RADIUS/TACACS+. Optional 10GbE modules and external RPS-600 redundant power enhance reliability. Compact 1U form factor (440x387x43.2mm, 5.54kg) suits rack deployments in campus aggregation, data center ToR, or branch offices requiring robust Layer 3 routing, multicast support (PIM-DM/SM), and low-latency traffic handling.

136 Gbps switching fabric capacity with 95 Mpps forwarding.
24x 10/100/1000BASE-T ports plus 4x SFP combo uplinks.
Resilient stacking for up to 12 units at 184 Gbps total.
Layer 3 routing with PIM, VRRP, and up to 1024 VLANs.
Advanced QoS with 8 queues and 100 ACLs for traffic control.
802.1x security, RADIUS/TACACS+, and external redundant power.

Expedited and overnight shipping options are available at checkout, priced by destination and service.
Purchase orders accepted from qualified institutions.
Refunds within 14 days and replacements within 30 days of delivery with an RMA (25% restocking fee on customer-initiated returns), and every part carries our Standard 30-Day Warranty - see our return policy or contact US IT Hardware.

Featuring

Spanning Tree
Manufacturer part #	RN856
Brand	Dell
Condition	Refurbished
Brand	Dell PowerConnect
Model	PowerConnect 6224
Switch Type	Managed
Product Line	PowerConnect 6200 Series
Product Type	Managed Ethernet Switch
Switch Layer	Layer 3
VLAN Support	IEEE 802.1Q VLAN
Auto MDI/MDIX	Supported

Best for

Campus Aggregation
Layer 3 access/aggregation for university or corporate campuses with high port density and VLAN segmentation.
Data Center Top-of-Rack
ToR switching with optional 10GbE uplinks for server connectivity and east-west traffic.
Branch Office
Managed GbE switching with PoE support for VoIP, WAPs, and video in remote sites.
Stacking Backbone
Resilient 12-unit stacks up to 184Gbps for scalable distribution layer deployments.
Enterprise Multicast
IGMP/PIM for video streaming and IPTV in media-rich environments.
Secure Perimeter
802.1x and ACLs for edge authentication in controlled access networks.

Frequently asked questions

What is the switching capacity and port configuration of Dell RN856 PowerConnect 6224?

Details

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Link Aggregation	IEEE 802.3ad LACP

Routing Protocols	RIP v1/v2, OSPF v2/v3, VRRP, static routing

Security Features	RADIUS, TACACS+, SSH, SSL

Quality of Service	802.1p QoS, traffic prioritization

Multicast Protocols	IGMP v2, DVMRP

Networking Standards	IEEE 802.3, 802.3u, 802.3ab, 802.3x, 802.1D, 802.1Q, 802.1p, 802.1w

Management Interfaces	CLI, Web UI, SNMP, RMON

Flash Memory	32 MB
System Memory	256 MB SDRAM

Network & Communication

Forwarding Rate	95 Mpps
Stacking Support	Yes (up to 12 switches)
MAC Address Table	Up to 8K entries
Stacking Bandwidth	Up to 48 Gbps (optional stacking module)
Switching Capacity	136 Gbps

Power Supply	Internal AC PSU
Redundant Power	External RPS supported

Weight	13.4 lb
Dimensions	17.3 x 15.2 x 1.7 in
Form Factor	1U Rack Mount

Humidity	10% to 90% non-condensing
Operating Temperature	0°C to 40°C

Combo Ports	4 x SFP (shared with RJ45 ports)
Total Ports	28
Console Port	1 x RJ-45 console
Ports (RJ45)	24 x 10/100/1000BASE-T
Supported Ethernet Speeds	10 Mbps / 100 Mbps / 1 Gbps

Dell PowerConnect 6224 Switch

Product overview

Featuring

Best for

Frequently asked questions

Details

Shipping, warranty & returns

Customer reviews

Storage

Network & Communication

Power Consumption

Physical Characteristics

Environmental

Interface/Ports