11.25 MB (6.75 MB dynamic on egress, 4.5 MB on ingress)
Management modes
Web interface, CLI, Telnet, SSH, SNMP, RMON1, FTP, IMC, dual-function RJ-45 or USB micro-B console port, out-of-band management via RJ-45 or RS-232C serial
Cloud management platform
None
Layer 2 features
802.1p prioritisation (8 queues), jumbo frames up to 9,220 bytes, LLDP 802.1AB, RPVST+
IP routing
Static routing, RIP and Access OSPF, table of 2,048 IPv4 and 256 IPv6 routes
Stacking and expansion
2 expansion module slots, 1 stacking module slot
Quality of service (QoS)
802.1p prioritisation (8 levels to 8 queues), Layer 4 prioritisation by TCP/UDP port, CoS class of service, per-port rate limiting
Technical specifications (continued)
Power consumption
70 W
Weight
5.42 kg
Dimensions (W x D x H)
44.25 x 33.6 x 4.4 cm
Latency
At 100 Mbps: less than 9 µs, at 1000 Mbps: less than 3.3 µs, at 10 Gbps: less than 3.2 µs (FIFO, 64-byte packets); throughput: 130.9 million packets per second
Processor
Triple-core ARM1176 at 625 MHz
Number of ports
29 ports or more
Managed
Yes
Security features
802.1X, MAC or web authentication, RADIUS/TACACS+, SSH, SSL, source port filtering
Power supply
Internal modular 100-240 V AC power supply, 50/60 Hz
PoE power
No
Port speed
1 Gbps (Gigabit)
Management level
Web interface (Smart)
Fibre slots (SFP)
No
Mounting
19-inch rack-mountable
Warranty
1 year
Customer reviews
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Frequently asked questions about this product
How are the ports of the HP 2920-48G laid out?
44 Gigabit ports and 4 dual-personality ports, usable as RJ-45 or with a module. On top of these come 2 expansion module slots, 1 stacking module slot, 1 USB port and 1 RJ-45 out-of-band management port.
Can several HP 2920-48G switches be stacked?
A stacking module slot is provided on the chassis. The module itself is chosen and ordered separately, as are the two expansion modules that take the very high-speed uplinks.
How can this switch be managed when the network is unavailable?
Through the RJ-45 out-of-band management port, dedicated to this purpose, or through the dual-personality port usable as RJ-45 or micro-USB. Day-to-day administration is done through a web interface.
What performance and latency does this switch claim?
176 Gbps switching capacity and 130.9 Mpps, with a 16,000-entry MAC address table. Latency stays below 9 µs at 100 Mbps, below 3.3 µs at Gigabit and below 3.2 µs at 10 Gbps, with 64-byte packets.
How much memory does this switch have?
512 MB of SDRAM, 1 GB of flash memory and an 11.25 MB packet buffer, driven by a triple-core ARM1176 processor clocked at 625 MHz. This generous buffer absorbs traffic peaks without dropping packets.
Does this switch power devices over PoE?
No, this model does not deliver power over its ports. Its power consumption is in fact limited to 70 W. IP cameras and Wi-Fi access points will need to be powered by an injector or a dedicated PoE switch.
How much rack space does this switch take up?
44.25 × 33.6 × 4.4 cm and 5.42 kg: 1U high and nearly 34 cm deep. A standard 19-inch rack is a must, with two people to set it on its rails.
Is the switch new and covered by a warranty?
Yes, new equipment, with the invoice serving as the warranty document. This is the HP 2920-48G managed switch, part number J9728A.
Rack-mountable Easy Smart switch for an SME that wants to segment and secure its network with VLANs and QoS, without the complexity of a fully managed switch — configurable from a simple web interface.
•802.1Q VLANs, port-based and MTU (up to 128 simultaneous VLANs)
•Per-port QoS and 802.1p/DSCP to prioritise voice and video
•IGMP Snooping, static link aggregation (up to 8 groups)
Rack-mountable Easy Smart switch, the middle ground for an SME that wants VLANs and QoS without the complexity of a fully managed switch, through a simple web interface.
Desktop switch in a sturdy metal casing, with a web interface to prioritise traffic and create VLANs — a sound balance between simplicity and control for a small network.
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For SMEs, hotels or schools: two uplink speeds to choose from, 2.5G or 10G fibre, to interconnect your access switches. Completely silent 1U casing, fanless.
Each PoE+ port delivers up to 30 W, for a total budget of 120 W, rounded out by two fibre links. Managed from the GWN.Cloud platform or locally, with VLANs and advanced security.
•8 PoE+ ports (802.3af/at), total budget 120 W, up to 30 W per port
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•1 PoE++ port up to 90 W + 3 PoE+ ports at 30 W each
For SMEs, hotels, schools or industrial sites: 4 fibre links beyond standard Gigabit to connect your aggregation switches. Completely silent 1U casing, managed locally or from the cloud.
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•24 Gigabit RJ45 ports (10/100/1000)
•2 SFP+ 10 Gbps ports for uplinks
802.1Q VLANs, port-based and MTU (up to 128 simultaneous VLANs)
•Per-port QoS and 802.1p/DSCP to prioritise voice and video
•IGMP Snooping, static link aggregation (up to 8 groups)
Rack-mountable Easy Smart switch, the middle ground for an SME that wants VLANs and QoS without the complexity of a fully managed switch, through a simple web interface.
•802.1Q VLANs, port-based and MTU (up to 128 simultaneous VLANs)
•Per-port QoS and 802.1p/DSCP to prioritise voice and video
•IGMP Snooping, static link aggregation (up to 8 groups)
Rack-mountable Easy Smart switch for an SME that wants to segment and secure its network with VLANs and QoS, without the complexity of a fully managed switch — configurable from a simple web interface.
•802.1Q VLANs, port-based and MTU (up to 128 simultaneous VLANs)
•Per-port QoS and 802.1p/DSCP to prioritise voice and video
•IGMP Snooping, static link aggregation (up to 8 groups)
A managed enterprise switch that powers IP cameras, Wi-Fi access points and phones on every one of its ports, with no mains socket. Switching capacity 176 Gbps, stackable, upgradable to fibre.
Desktop switch in a sturdy metal casing, with a web interface to prioritise traffic and create VLANs — a sound balance between simplicity and control for a small network.
•Web interface and management utility to prioritise traffic and create VLANs
•802.1Q, port-based and MTU VLANs (up to 32 simultaneous VLANs)
Smart managed layer 2 switch for a dense fleet of workstations and servers, with configuration and monitoring via the Instant On mobile app, the cloud portal or a local web interface.
•Layer 2, configurable via the Instant On app, the cloud portal and the local web interface
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Covers a whole floor of cameras, Wi-Fi access points and IP phones on a single device, without multiplying power units. 10G links and a capacity of 176 Gbps absorb the combined traffic. VLANs, security and administration of enterprise equipment.
•Switching capacity 176 Gbps, 131 Mpps
•4 SFP+ 10 Gbps uplinks
•Fast PoE and Perpetual PoE (continuity during restarts)
Designed for video surveillance: a 384 W PoE+ budget shared across the powered ports, transmission up to 250 m and power maintained even when the switch restarts. Rackable metal housing, VLAN and automatic loop prevention.
•Total PoE+ budget of 384 W, up to 30 W per port (802.3af/at)
•2 Gigabit SFP ports for a fibre link
•Fast PoE and Perpetual PoE: power maintained when the switch restarts
