HP Switch 2920-48G (J9728A)

gambar HP 2920-48G Switch(J9728A)

The HP 2920 Switch Series consists of five switches: the HP 2920-24G and 2920-24G-PoE+ Switches with 24 10/100/1000 ports, and the HP 2920-48G and 2920-48G-PoE+ and 2920-48G 740W PoE+ Switches with 48 10/100/1000 ports. Each switch has four dual-personality ports for 10/100/1000 or SFP connectivity.

In addition, the 2920 switch series supports up to four optional 10 Gigabit Ethernet (SFP+ and/or 10GBASE-T) ports, as well as a two-port stacking module. These options provide you with flexible and easy-to-deploy uplinks and stacking.Together with static and RIP routing, robust security and management, enterprise-class features, free lifetime warranty, and free software updates, the HP 2920 Switch Series is a cost-effective, scalable solution for customers who are building high-performance networks. These switches can be deployed at the enterprise edge, in remote branch offices, and in converged networks.


Quality of Service (QoS)

Traffic prioritization (IEEE 802.1p): allows real-time traffic classification into eight priority levels mapped to eight queues
Layer 4 prioritization: enables prioritization based on TCP/UDP port numbers
Class of Service (CoS): sets the IEEE 802.1p priority tag based on IP address, IP Type of Service (ToS), Layer 3 protocol, TCP/UDP port number, source port, and DiffServ
Rate limiting: sets per-port ingress enforced maximums and per-port, per-queue minimums
Large buffers: provide graceful congestion management


Flexible 10 Gb/s Ethernet connectivity: up to four optional 10-Gigabit ports (SFP+ and/or 10GBASE-T)
Two-port stacking module with up to 40 Gb/s per port: optional two-port stacking module allows stacking of up to four switch units into a single virtual device
Auto-MDIX: provides automatic adjustments for straight-through or crossover cables on all 10/100 and 10/100/1000 ports
IPv6: IPv6 host: allows the switches to be managed and deployed at the edge of IPv6 networks. Dual stack (IPv4/IPv6): provides transition mechanism from IPv4 to IPv6; supports connectivity for both protocols. MLD snooping: forwards IPv6 multicast traffic to the appropriate interface; prevents IPv6 multicast traffic from flooding the network.
IEEE 802.3at Power over Ethernet (PoE+): provides up to 30 W per port that allows support of the latest PoE+-capable devices such as IP phones, wireless access points, and security cameras, as well as any IEEE 802.3af-compliant end device; eliminates the cost of additional electrical cabling and circuits that would otherwise be necessary in IP phone and WLAN deployments


Energy-efficient design: High-efficiency power supplies: 80 PLUS Silver Certified power supply increases power savings. Energy-efficient Ethernet (EEE) support: reduces power consumption in accordance with IEEE 802.3az.
HP ProVision ASIC architecture: is designed with the latest HP ProVision ASIC, providing very low latency, increased packet buffering, and adaptive power consumption
Selectable queue configurations: allows for increased performance by selecting the number of queues and associated memory buffering that best meet the requirements of the network applications

Software-defined networking

OpenFlow: is a key technology that enables software-defined networking by allowing the separation of data (packet forwarding) and control (routing decision) paths


Specifications HP Switch 2920-48G (J9728A)


44 RJ-45 autosensing 10/100/1000 ports

  4 dual-personality 10/100/1000 ports

  1 RJ-45 out-of-band management port

Media interfaces

RJ-45, USB



Power Supply

70 W (maximum)

27 W (standby)


Memory and processor:

Tri Core ARM1176 @ 625 MHz


Packet buffer size:

11.25 MB (6.75 MB dynamic egress + 4.5 MB ingress)

1 GB flash

Routing table size: 2048 entries (IPv4), 256 entries (IPv6)

Management features:

HP PCM+; IMC – Intelligent Management Center; command-line interface; Web browser; configuration menu; out-of-band management (RJ-45 Ethernet); SNMP Manager; Telnet; RMON1; FTP; in-line and out-of-band; out-of-band management (serial RS-232C or Micro USB)

Switching capacity: 176 Gbps

General protocols:

Input voltage: 100-240 VAC

Input frequency: 50/60 Hz

Electromagnetic compatibility: FCC part 15 Class A; VCCI Class A; EN  55022 / CISPR 22 Class A

Operating altitude: Up to 3 km

Acoustic pressure emissions: Power: 57 dB, Pressure: 41.8 dB

Heat dissipation: 239 BTU/hr (252.15 kJ/hr)

Dimensions (W x D x H): 44.25 x 33.6 x 4.4 cm

Weight: 5.42 kg


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