| Technical specifications |
| Indicators |
| System LEDs | • System (OK) (chassis HW/SW status) • PWR (primary power supply status) • PRI (virtual chassis primary)
• BPS (backup power status)
• LED segment display indicates the stack ID of the unit in the stack: 1 to 8 (24/48 port models) |
| Per-port LEDs | • 10/100/1000: PoE, link/activity • SFP: Link/activity
• Stacking: Link/activity |
| Compliance and certifications |
| Commercial | • EMI/EMC
• FCC CRF Title 47 Subpart B (Class A limits. Note: Class A with UTP cables)
• VCCI (Class A limits. Note: Class A with UTP cables)
• AS/NZS 3548 (Class A limits. Note: Class A with UTP cables)
• CE-Mark: Marking for European countries (Class A limits. Note: Class A with UTP cables)
• CE-Mark ¬ Low Voltage Directive ¬ EMC Directive ¬ RoHS Directive
• EN 55022: 2010 (EMI and EMC requirement))
• EN 61000-3-3
• EN 61000-3-2 (Limits for harmonic current emissions)
• EN 55024 (ITE Immunity characteristics) ¬ EN 61000-4-2 ¬ EN 61000-4-3 ¬ EN 61000-4-4 ¬ EN 61000-4-5 ¬ EN 61000-4-6 ¬ EN
61000-4-8 ¬ EN 61000-4-11
•IEEE802.3: HiPot Test (2250 V DC on all Ethernet ports)
• EN 50581: Standard for technical documentation for RoHS recast |
| Safety agency certifications | • CB Scheme: Certification per IEC 60950/EN 60950 with all different country deviations ¬ UL 60950, United States ¬ IEC 60950-1,all national deviations ¬ EN 60950-1 (Electric/Health & Safety), all national deviations ¬ CAN/CSA-C22.2 No. 60950-1-03 ¬ NOM-019 SCFI, Mexico ¬ AS/NZ TS-001 and 60950, Australia ¬ UL-AR, Argentina ¬ UL-GS Mark, Germany • IEC 60825-1 Laser, IEC 60825-2 Laser
•CDRH Laser |
| Supported standards | • IEEE 802.1D (STP)
• IEEE 802.1p (CoS)
• IEEE 802.1Q (VLANs)
• IEEE 802.1ad (Provider Bridge) Q-in-Q (VLAN stacking)
• IEEE 802.1ag (Connectivity Fault Management)
• IEEE 802.1s (MSTP)
• IEEE 802.1w (RSTP)
• IEEE 802.1X (Port-Based Network Access Protocol)
• IEEE 802.3i (10Base-T)
• IEEE 802.3u (Fast Ethernet)
• IEEE 802.3x (Flow Control)
• IEEE 802.3z (Gigabit Ethernet)
•IEEE 802.3ab (1000Base-T)
• IEEE 802.3ac (VLAN Tagging)
• IEEE 802.3ad (Link Aggregation)
• IEEE 802.3ae (10 Gigabit Ethernet)
•IEEE 802.3af (Power-over-Ethernet)
• IEEE 802.3at (Power-over-Ethernet)
• IEEE 802.ah (Ethernet first mile)
• IEEE 802.3az (Energy Efficient Ethernet)
• IEEE 1588v2 Precision Timing Protocol (PTP) (“S” models only) ¬ End-to-end Transparent Clock (TC) ¬ IPv4 Unicast address or Ethernet Multicast Encapsulation |
| IETF RFCs |
| RIP | • RFC 1058 RIP v1
• RFC 1722/1723/1724/2453 RIP v2 and MIB
• RFC 1812/2644 IPv4 Router Requirement
• RFC 2080 RIPng for IPv6 |
| IP Multicast | RFC 1112 IGMP v1 • RFC 2236/2933 IGMP v2 and MIB
• RFC 2365 Multicast
• RFC 3376 IGMPv3 for IPv6 |
| IPv6 | • RFC 1886 DNS for IPv6
• RFC 2292/2373/2374/2460/2462
• RFC 2461 NDP
• RFC 2463/2466 ICMP v6 and MIB
• RFC 2452/2454 IPv6 TCP/UDP MIB
• RFC 2464/2553/2893/3493/3513
• RFC 3056 IPv6 Tunneling
• RFC 3542/3587 IPv6
• RFC 4007 IPv6 Scoped Address Architecture
•RFC 4193 Unique Local IPv6 Unicast Addresses |
| Manageability | RFC 854/855 Telnet and Telnet options • RFC 959/2640 FTP
• RFC 1155/2578-2580 SMI v1 and SMI v2
• RFC 1157/2271 SNMP
• RFC 1212/2737 MIB and MIB-II
• RFC 1213/2011-2013 SNMP v2 MIB
• RFC 1215 Convention for SNMP Traps
• RFC 1350 TFTP Protocol
• RFC 1573/2233/2863 Private Interface MIB
• RFC 1643/2665 Ethernet MIB
• RFC 1901-1908/3416-3418 SNMP v2c
• RFC 2096 IP MIB
• RFC 2131 DHCP Server/Client
• RFC 2570-2576/3411-3415 SNMP v3
• RFC3414 User-based Security Model
• RFC 2616 /2854 HTTP and HTML
• RFC 2667 IP Tunneling MIB
• RFC 2668/3636 IEEE 802.3 MAU MIB
• RFC 2674 VLAN MIB
• RFC 2818 HTTPS over SSL
• RFC 4251 Secure Shell Protocol Architecture
• RFC 4252 The Secure Shell (SSH v2) Authentication Protocol |
| Security | • RFC 1321 MD5
• RFC 2104 HMAC Message Authentication
• RFC 2138/2865/2868/3575/ 2618 RADIUS Authentication and Client MIB
• RFC 2139/2866/2867/2620 RADIUS Accounting and Client MIB
• RFC 2228 FTP Security Extensions step
• RFC 2284 PPP EAP
• RFC 2869/3579 Radius Extension |
| Quality of service | • RFC 896 Congestion control • RFC 1122 Internet Hosts
• RFC 2474/2475/2597/3168/ 3246 DiffServ
• RFC 3635 Pause Control
• RFC 2697 srTCM
• RFC 2698 trTCM |
| RJ-45 10/100 ports | 0 |
| Port | OS6450-U24/ U24X/U24S/ U24SXM |
| RJ-45 10/100/ 1000 ports | 0 |
| Performance (Gigabit models) |
| Switch capacity (all ports) | 128 Gb/s |
| Switch frame rate (all ports) | 95.3 Mp/s |
| Stacking capacity (aggregated) | 40 Gb/s |
| Dimensions |
| Width | 44.0 cm (17.32 in) |
| Height | 4.4 cm (1.73 in) |
| Depth | 31.24 cm (12.3 in) |
| Weight | 4.08 kg (9.0 lb) |
