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Новые коммутаторы HP 2920 доступны для заказа

Коммутатор серии HP 2920 — это гибкое масштабируемое решение для обеспечения доступа 1GbE, которое отличается эффективным энергопотреблением. Возможность расширения модулями с 10Gb интерфейсами, замены блока питания и установки модуля для стекирования (стекируются до 4-х коммутаторов). Гарантия на весь срок службы.

Основные преимущества:

Высокопроизводительный коммутатор Гигабитного доступа Gigabit с EEE (энергоэффективным Ethernet)

Коммутация на уровне L2 и L3

Маршрутизация L3 статическая, а также поддержка протокола динамической маршрутизации RIP

Поддержка PoE и PoE+

Поддержка IPV6

Возможность установки в стек до 4-х коммутаторов

Гарантия на весь срок службы

P/N Description

J9726A HP 2920-24G Switch

J9727A HP 2920-24G-PoE+ Switch

J9728A HP 2920-48G Switch

J9729A HP 2920-48G-PoE+ Switch

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

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Connectivity

Flexible 10 Gbps Ethernet connectivity — up to four optional 10-Gigabit ports (SFP+ and/or 10GBASE-T)

Two-port stacking module with up to 40 Gbps/port — optional two-port stacking module allows stacking of up to four switch units into a single virtual device

Auto-MDIX — automatically adjusts 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+) — provide 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

Pre-standard PoE support — detects and provides power to pre-standard PoE devices

Dual-personality functionality — includes four 10/100/1000 ports or SFP slots for optional fiber connectivity such as Gigabit-SX, -LX, and -LH, or 100-FX

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Performance

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

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Software-defined networking

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

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Convergence

IP multicast snooping and data-driven IGMP — automatically prevent flooding of IP multicast traffic

LLDP-MED (Media Endpoint Discovery) — is a standard extension of LLDP that stores values for parameters such as QoS and VLAN to automatically configure network devices such as IP phones

IEEE 802.1AB Link Layer Discovery Protocol (LLDP) — is an automated device discovery protocol that provides easy mapping of network management applications

PoE and PoE+ allocations — support multiple methods (automatic, IEEE 802.3at dynamic, LLDP-MED fine grain, IEEE 802.3af device class, or user specified) to allocate and manage PoE/PoE+ power for more efficient energy savings

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Resiliency and high availability

IEEE 802.1s Multiple Spanning Tree — provides high link availability in multiple VLAN environments by allowing multiple spanning trees; provides legacy support for IEEE 802.1d and IEEE 802.1w

IEEE 802.3ad Link Aggregation Control Protocol (LACP) and HP port trunking — support up to 60 static, dynamic, or distributed trunks active across a stack, with each trunk having up to eight links (ports) per static trunk; support trunking across stack members

Ring and chain stacking topology — allows failure of a link or switch in the ring of stacked switches, while the remaining connected switches continue operation

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Management

SNMPv1, v2, and v3 — provide complete support of SNMP; provide full support of industry-standard Management Information Base (MIB) plus private extensions; SNMPv3 supports increased security using encryption

Out-of-band Ethernet management port — enables management over a separate physical management network, keeping management traffic segmented from network data traffic

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Manageability

Dual flash images — provides independent primary and secondary operating system files for backup while upgrading

Friendly port names — allow assignment of descriptive names to ports

Find-Fix-Inform — finds and fixes common network problems automatically, then informs administrator

Multiple configuration files — allow multiple configuration files to be stored to a flash image

Software updates — free downloads from the Web

RMON, XRMON, and sFlow — provide advanced monitoring and reporting capabilities for statistics, history, alarms, and events

Troubleshooting — ingress and egress port monitoring enable network problem solving

Uni-Directional Link Detection (UDLD) — monitors a link between two switches and blocks the ports on both ends of the link if the link goes down at any point between the two devices

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Layer 2 switching

VLAN support and tagging — supports IEEE 802.1Q (4,094 VLAN IDs) and 256 VLANs simultaneously

GARP VLAN Registration Protocol — allows automatic learning and dynamic assignment of VLANs

Jumbo packet support — supports up to 9220-byte frame size to improve the performance of large data transfers

IEEE 802.1v protocol VLANs — isolate select non-IPv4 protocols automatically into their own VLANs

Rapid Per-VLAN Spanning Tree (RPVST+) — allows each VLAN to build a separate spanning tree to improve link bandwidth usage; is compatible with PVST+

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Layer 3 routing

Static IP routing — provides manually configured routing; includes ECMP capability

Routing Information Protocol (RIP) — provides RIPv1 and RIPv2 routing

256 static and 2,048 RIP routes — facilitate segregation of user data without adding external hardware

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Security

Multiple user authentication methods —

IEEE 802.1X — is an industry-standard method of user authentication using an IEEE 802.1X supplicant on the client in conjunction with a RADIUS server

Web-based authentication — is similar to IEEE 802.1X and provides a browser-based environment to authenticate clients that do not support the IEEE 802.1X supplicant

MAC-based authentication — authenticates the client with the RADIUS server based on the client's MAC address

Authentication flexibility —

Multiple IEEE 802.1X users per port — provides authentication of multiple IEEE 802.1X users per port; prevents a user from "piggybacking" on another user's IEEE 802.1X authentication

Concurrent IEEE 802.1X, Web, and MAC authentication schemes per port — switch port will accept up to 32 sessions of IEEE 802.1X, Web, and MAC authentications

Access control lists (ACLs) — provide IP Layer 3 filtering based on source/destination IP address/subnet and source/destination TCP/UDP port number

Source-port filtering — allows only specified ports to communicate with each other

RADIUS/TACACS+ — eases switch management security administration by using a password authentication server

IEEE 802.1X, MAC or Web authentication — provides concurrent network access control and Web authentication of up to 24 clients per port

Secure shell — encrypts all transmitted data for secure remote CLI access over IP networks

Secure Sockets Layer (SSL) — encrypts all HTTP traffic, allowing secure access to the browser-based management GUI in the switch

Port security — allows access only to specified MAC addresses, which can be learned or specified by the administrator

MAC address lockout — prevents particular configured MAC addresses from connecting to the network

Secure FTP — allows secure file transfer to and from the switch; protects against unwanted file downloads or unauthorized copying of a switch configuration file

Switch management logon security — helps secure switch CLI logon by optionally requiring either RADIUS or TACACS+ authentication

Custom banner — displays security policy when users log in to the switch

STP BPDU port protection — blocks Bridge Protocol Data Units (BPDUs) on ports that do not require BPDUs, preventing forged BPDU attacks

DHCP protection — blocks DHCP packets from unauthorized DHCP servers, preventing denial-of-service attacks

Dynamic ARP protection — blocks ARP broadcasts from unauthorized hosts, preventing eavesdropping or theft of network data

STP Root Guard — protects the root bridge from malicious attacks or configuration mistakes

Identity-driven ACL — enables implementation of a highly granular and flexible access security policy and VLAN assignment specific to each authenticated network user

Per-port broadcast throttling — selectively configures broadcast control on heavy traffic port uplinks

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Monitor and diagnostics

Digital optical monitoring of SFP+ and 1000BASE-T transceivers — allows detailed monitoring of the transceiver settings and parameters