HP Switch 100Mbit, 24xTP, 4xSFP-Slot, POE, E5500-24-PoE,

Ports: 24 inline power 10BASE-T/100BASE-TX ports with auto-negotiation, configured as auto MDI/MDIX 4 Gigabit SFP ports RPS port (-48 VDC) RJ-45 console port

Performance: 12.8 Gbit/s forwarding bandwidth, 9.5 million packets per second, 16,000 MAC addresses, max.

Stacking: Up to 8 switch units, 384 10/100 ports 3Com XRN® stacking in active/active load sharing configuration connected via SFP ports on the front panel

Layer 2: IEEE 802.Q VLANs, 802.3ad LACP, 802.3x full-duplex flow control, 802.1D STP, 802.1w RSTP, Fast Start with BDPU protection, IGMP v1/v2 multicast filtering

Layer 3: Hardware-based routing, ECMP, ARP, virtual interfaces, static/dynamic routing, RIPv1/v2, OSPF, ASIC Layer 3 forwarding, PIM-DM, PIM-SM, IGMP v1/v2 snooping, DHCP relay

Resilience: IEEE 802.3ad LACP, hot-swappable switch units, DC RPS provides N+1 power redundancy, seamless failover between AC and DC mode

Convergence: Weighted Round Robin/Fair/Strict Priority Queuing, IEEE 802.1p Class of Service/Quality of Service (CoS/QoS), IPv6 classification, prioritization and filtering, ingress/egress rate limiting, web cache-based bandwidth management

Security: RADIUS PAP/CHAP/EAPoL (EAP over LAN) authentication Session accounting SSHv1.5 access control lists Packet filtering SNMP v3 encryption, IEEE 802.1X network login authentication, VLAN auto-initiation and QoS profiling Multilevel access privileges Administrative password recovery Management activity logs

Power over Ethernet: IEEE 802.3af standard

Operating System: 3Com Operating System shared by 3Com Switch 8800, 7700 and Router 6000

3Com Management: 3Com Network Supervisor, 3Com Network Director, 3Com Enterprise Management Suite

Other Management: Web-based GUI, SNMP, Telnet, CLI, RMON-1 (statistics, history, alarms, events), SMON, multiple software images, Bank Swapm statistics collection and reports, remote polling/ping (unicast mode only), software backup/restore, Xmodem, FTP, TFTP, Telnet, IP address assignment via manual/DHCP/BOOTP

Network debugging tools: DHCP Tracker, UDP Helper, Traceroute, 1-1 Traffic Mirroring (single-user unit only)

Built-in power supply: 50/60 Hz AC 90-240 VAC input supports multiple power modes: AC only operation, AC and DC operation, DC only operation

DC Redundant Power System (RPS): Standards-based DC RPS available from Eaton Powerware Corporation, the leading provider of integrated power systems

IEEE standards: IEEE 802.1D (STP), 802.1p (CoS), 802.1Q (VLANs), 802.1w (RSTP), 802.1X (Security), 802.3 (Ethernet), 802.3ad (Link Aggregation), 802.3ab (1000BASE-T), 802.3ae (10G Ethernet), 802.3i (10BASE-T), 802.3u (Fast Ethernet), 802.3x (Flow Control), 802.3z (Gigabit Ethernet)

Standard: EN 60068 (IEC 68)

Emissions: CISPR 22 Class A, FCC Part 15 Class A, EN 55022 1998 Class A, ICES-003 Class A, VCCI Class A, EN 61000-3-2 2000, 61000-3-3

Immunity: EN 55024

Certifications from safety approval bodies: UL 60950, IEC 60950-1, EN 60950-1, CAN/CSA-C22.2 No. 60950

Reliability: MTBF 30 years (263,000 hours)

Dimensions: Height: 43.6 mm (1U) Width: 440 mm, Depth: 427 mm (1U)

Weight: 6.3kg

Temperature: 0 °C to 40 °C for operation -10 °C to 70 °C for storage

Humidity: 10% to 95% non-condensing, operating/storage