What is the switching latency and capacity?

Less than 1 microsecond latency for 64-byte packets using cut-through mode, with 960 Gbps switch bandwidth and 714 Mpps Layer 2/3 forwarding rate. Supports store-and-forward, 9216-byte Jumbo Frames, ideal for high-performance server aggregation.

What QoS features are available?

Includes 8 QoS egress queues per port, 2,048 ingress bandwidth meters, per-flow/ACL ingress/egress policing, per-queue/port shaping, and rate limiting granularity from 8 Kbps to 1 Mbps. Enables precise traffic prioritization and control.

What is the form factor and power specs?

1RU rack-mountable with back-to-front airflow, dual AC PSUs (100-240V, 50/60Hz, 2.5A), 225W power consumption, and 768 BTU/h heat dissipation. Compact design optimizes space and cooling in dense racks.

Does it support VLANs and stacking?

Supports 4,094 VLANs (port, protocol, IEEE 802.1Q) and 128 load-sharing trunks up to 8 members. SummitStack-V enables stacking up to 352 ports with 160 Gbps throughput and long-distance capability up to 40km.

What processor and memory does it have?

Powered by 64-bit MIPS processor at 1GHz clock speed, with 1GB ECC SDRAM and 1GB Compact Flash. Runs ExtremeXOS for modular, high-availability operation across Extreme Networks platforms.

X670-48X-BF - Extreme Networks Summit X670-48x-BF Switch

Name: X670-48X-BF - Extreme Networks Summit X670-48x-BF Switch
Brand: Extreme Networks
SKU: X670-48X-BF

X670-48X-BF - Extreme Networks Summit X670-48x-BF Switch | US IT Hardware

Product overview

The Extreme Networks Summit X670-48x-BF is a high-performance Layer 3 top-of-rack Ethernet switch designed for datacenter environments. It features 48 ports of 10GBASE-X SFP+ supporting dual 1G/10G speeds, delivering 960 Gbps switch bandwidth and 714 Mpps forwarding rate with less than 1 microsecond latency for 64-byte packets using cut-through switching. Equipped with a 64-bit 1GHz MIPS processor, 1GB ECC SDRAM, and 1GB Compact Flash, it supports 9216-byte Jumbo Frames, 4,094 VLANs, and 128 load-sharing trunks up to 8 members each. QoS includes 8 egress queues per port, ingress/egress rate limiting from 8 Kbps granularity, and 2,048 ingress bandwidth meters. Management via RS-232 serial port and status LEDs for ports, fans, power. Rack-mountable 1RU form factor with dual hot-swappable AC PSUs at 225W consumption and back-to-front airflow optimizes cooling in dense deployments. Ideal for high-density 10GbE server connectivity and stacking up to 352 ports.

48x 10G SFP+ ports, dual 1G/10G speed support
<1μs latency, 960Gbps bandwidth, 714 Mpps forwarding
8 QoS queues/port, 8Kbps rate limiting granularity
4,094 VLANs, 9216-byte Jumbo Frames support
1RU rack-mount, back-to-front airflow, 225W consumption
64-bit 1GHz MIPS CPU, 1GB ECC SDRAM memory

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

Manufacturer part #	X670-48X-BF
Brand	Extreme Networks
Condition	New
Model	Summit X670-48x-BF
Technology	Store-and-Forward and Cut-Through switching; Less than 1 microsecond latency (64-byte packet)
Load Sharing	128 load sharing trunks, up to 8 members per trunk
Product Line	Summit X670 Series
Product Type	Top-of-rack Ethernet switch
VLAN Support	4,094 VLANs (Port, Protocol, IEEE 802.1Q)
Management Interface	System Status LEDs: management, fan and power

Compatible systems

No specific compatibility lists found in sources

Best for

Datacenter Top-of-Rack
Provides 48x 10GBASE-X SFP+ ports with dual 1G/10G speed support and <1μs latency, enabling high-density connectivity for 10GbE servers in 1RU form factor.
Server Farm Aggregation
Supports 960Gbps bandwidth, 714 Mpps forwarding, Jumbo Frames up to 9216 bytes, and 128 load-sharing trunks for efficient Layer 2/3 traffic handling in virtualized environments.
Enterprise Core Backbone
Offers 4,094 VLANs, 8 QoS queues per port, and granular rate limiting from 8Kbps, ensuring scalable IPv4/IPv6 routing and policy enforcement in stacked configurations up to 352 ports.
High-Availability Stacking
Utilizes SummitStack-V for high-speed stacking with distributed forwarding, supporting up to 40km distances for resilient datacenter fabrics.

Frequently asked questions

What ports does the Summit X670-48x-BF support?

Details

Shipping, warranty & returns

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Memory Type	1GB ECC SDRAM; 1GB Compact Flash

Processor	64-bit MIPS Processor; 1GHz clock

Network & Communication

QoS Queues	8 QoS egress queues/port; 2,048 ingress bandwidth meters; Ingress and egress bandwidth policing/rate limiting per flow/ACL; Egress bandwidth rate shaping per egress queue and per port; Rate Limiting Granularity: 8 Kbps – 1Mbps
Maximum Packet Size	9216 Byte maximum packet size (Jumbo Frame)

Power Supplies	AC PSU; Nominal Input Ratings: 100–240V~, 50/60Hz, 2.5A
Power Consumption	225W (768 BTU/h)

Physical Characteristics

Width	3.07 inches (7.8 cm) for PSU
Height	1.57 inches (4.0 cm)
Form Factor	Rack-mountable 1RU
Status LEDs	Per port status LED including power status; System Status LEDs: management, fan and power

Network Ports	48 ports 10GBASE-X SFP+ (1G/10G dual speed); One RJ-45 RS-232c Serial port (control port)
Ethernet Speed	10GBASE-X SFP+; 1000BASE-X SFP compatible

Extreme Networks Summit X670-48x-BF Switch

Product overview

Featuring

Compatible systems

Best for

Frequently asked questions

Details

Shipping, warranty & returns

Customer reviews

Storage

Processor

Network & Communication

Power Consumption

Physical Characteristics

Environmental

Interface/Ports