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The 3C16985 SuperStack II Switch 3300XM delivers breakthrough pricing for 10/100 Ethernet/Fast Ethernet switching, saving customers up to 50 percent over comparable competitive solutions. The 3300 XM does not have the optional expansion slot in the back and is perfect for use as the 2nd, 3rd & 4th switch in the stack.

Management
All switches support SNMP and 3Com Transcend network management applications
The Switch 1100, 3300, and 3300 FX can be managed with a Command Line Interface by connecting a terminal to the serial port or via Telnet, or graphically using the resident Web interface.
MIBs supported: New MAU MIB (RFC 2239), RMON II Probe Config (RFC 2021), RMON (RFC 1757), RS 232 MIB (RFC 1659), IfStack Table (RFC 1573), Bridge MIB (RFC 1493), SNMPMIB II (RFC 1213)
Plus additional SuperStack II MIBs for stacking, security, and resilience.

Standards Compliance
Functional
ISO 8802/3, IEEE 802.3 (Ethernet), IEEE 802.3u (Fast Ethernet), IEEE 802.3x (Flow Control), IEEE 802.1D (incorporating 802.1p), IEEE 802.1Q (Bridging) Safety: UL 1950 2nd Edition, EN 60950: 1992/A3: 1995 plus ZB/ZC Deviations, CSA 22.2 #950, ECMA 97,TUV GS Mark will be applied for Mexican NOM and Russian GOST safety approval.

Electromagnetic
EN 55022 Class B, FCC part 15 Class A, CSA C108.8-M1983 (A), VCCI Class 2, EN 50082-1 (IEC 801 Parts 2-4), EN 61000 -3 -2, EN 61000 -4 -5, ENV 50140, ENV 50141, Russian GOST EMC approval (Will be obtained after initial release.) Environmental: Shock and Vibration: EN 60068 (IEC 68) Protocols: SNMP (RFC 1157), ARP (RFC 826), IP (RFC 791), ICMP (RFC 792), IGMP (RFC 1112), UDP (RFC 768), TCP (RFC 793), TFTP (RFC 783)

SuperStack II Switch Gigabit Ethernet Modules

Provides support for SuperStack II Switch 1100, SuperStack II Switch 3300, and SuperStack II Switch 3300 FX.

General

1000BASE-SX
1 single 850 nm fiber optic port with SC-duplex connectors full-duplex mode

1000BASE-LX
1 single 1300 nm fiber optic port with SC-duplex connectors full-duplex mode

1000BASE-T
1 single RJ-45 port with 100/1000 autosensing full-duplex mode

Standards Compliance
Functional
ISO 8802/3, IEEE 802.3 (Ethernet), IEEE 802.3x (Flow Control), IEEE 802.3z (Gigabit Ethernet), IEEE 802.1Q (VLAN Tagging), priority bits as per IEEE 802.1p

Standards Compliance
Electromagnetic
ICES-003 Class A, FCC part 15 Class A, EN 55022 Class B, VCCI Class 2, AS/NZS 3548 Class B, CISPR Class B, CNS 13438 Class A, Korean EMC approval; EN 61000-4-2, EN 61000-4-3, EN 61000-4-4, EN 61000-4-5, EN 61000-4-6, EN 61000-4-11, ENV 50204

Safety
UL 1950 3rd Edition, Listed, UL listed to CSA 22.2 No.950, TUV GS to EN 60825-1 and EN 60950: 1992/A3: 1995 plus ZB/ZC deviations, IEC 950 Edition 2 Amendment 4 + ALL national deviations; CB Certificate & Report to be supplied; EN 60825-1: Class 1 Laser safety  

• Lowest cost 10/100 switching solution. Delivers the performance and flexibility of 10/100 switching to boost performance to desktop users and critical server links.
• Latest generation stacking technology. Deliver high-speed communication (1 Gbps) between links without consuming valuable network ports, and enables multiple switches to be managed as a single logical device.
• Lower cost of ownership. Add capacity without wasting ports, adding IP addresses, or increasing administrative overhead.
• Robust feature set. Runs the same feature-rich software as the SuperStack II Switch 3300, including 802.1 prioritization, IGMP snooping, and 802.1Q VLAN support.
• Expandable to support growth. Mix and match the SuperStack II Switch 3300 XMs and SuperStack II Switch 3300s to create up to 96 ports, and add high-speed Gigabit Ethernet or ATM connections to backbone switches.
• Simplified network management. Transcend� Network Supervisor provides proactive network monitoring with wizard-based problem solving.
• Superior service and support. 3Com's +5 lifetime limited warranty and free technical telephone support ensure worry-free operation.

Web-based management
Manage your switches with any Web browser, either through direct or dial-up connection or across the LAN. This delivers ease of use and accessibility to network management personnel and reduces in-service costs, but still with full security.

Security — Disconnect Unauthorized Device (DUD)
LAN security architecture with DUD automatically disconnects unauthorized devices from the LAN.

Roving Analysis Port (RAP)
RAP allows a network analyzer attached to any unit in a stack to monitor any of the switch ports or virtual LANs (VLANs) in the stack. It also minimizes the time required for problem determination and resolution and maximizes switch uptime, thereby lowering your cost of ownership.

RMON support
Transcend software’s powerful combination of RMON (Remote Monitoring, a superset of SNMP MIB II) and embedded SmartAgent software reduces the processing burden on your management station, minimizes network traffic, and saves time by automatically monitoring and analyzing your network. RMON tells you at a glance how the network is performing and who is using it the most. And Transcend software gives you the added benefit of RMON features in your network without the processing and memory costs usually associated with RMON. See the At-a-Glance RMON Support table for details on RMON groups supported by SuperStack II switches.

Class of Service (CoS)

CoS can be defined simply as a method for prioritizing various traffic types. 3Com switches can support two methods of enabling CoS on Ethernet networks. The first method is IEEE 802.1D (incorporating 802.1p), which enables eight levels of prioritization; and the second method is 3Com’s innovative PACE� technology, which allows the user to specify certain applications as high priority. A hardware feature, dual queues, is used to exploit these traffic prioritization schemes; the dual queues function—required for CoS—will automatically enable a second port buffer for high-priority traffic thereby allowing the traffic to bypass lower priority data for faster processing within the switch.

Traffic Management

Flow control
Flow control is an essential switch feature that eliminates dropped packets on congested ports. To provide switch application flexibility, 3Com switches support flow control schemes suited to both full- and half-duplex environments. Intelligent Flow Management (IFM) is a solution designed to work in half duplex, for example, a hub aggregation application. A solution using IEEE 802.3x is also supported and designed for full-duplex connections, such as desktop switching; this method of flow control is set automatically using the autosensing features of SuperStack II switches.

Broadcast traffic control
Traditional Ethernet switches suffer from the threat of broadcast storms that can potentially bring networks to a halt. However, all SuperStack II switches can be configured with broadcast storm protection to limit the number of broadcast packets allowed to be forwarded by each port. This allows the SuperStack II switches to offer the security of broadcast storm protection normally associated with a router while also providing the protocol independence of a switch.

Network Availability

Backup power supplies
3Com gives you all the choices you need to ensure constant power to your stackable switches. Both the Advanced Redundant Power System (ARPS) and the Uninterruptible Power System (UPS) work with any SuperStack II switch. The ARPS is ideally suited as a backup for individual power supplies in the SuperStack II units. The UPS fully protects your SuperStack II system from the effects of brownouts or spikes that occur in outside power lines.

Resilient links
3Com’s simple and flexible resilient links technology ensures fault tolerance via redundant connections to other network devices.

Spanning tree
Support for the industry-standard IEEE 802.1D spanning tree protocol is provided as an alternative to resilient links. This protects against network loops and can be used to provide redundant network paths.

Port trunking
Port trunking establishes backbone links by treating multiple parallel links as a single network pipe. Trunking also provides link redundancy; traffic on any failed link comprising a network trunk automatically switches over to the other links in the trunk.

VLANs

VLANs allow PCs, workstations, and other resources, including printers and file servers, to be organized into logical, broadcast domains so that only devices within the same domain can communicate with each other. 3Com switches allow users to implement VLANs on their network using one of two schemes: IEEE 802.1Q, including GVRP, which enables the auto-learning of VLANs, or 3Com’s VLT. Both methods allow for the configuration of VLANs based on ports and/or MAC addresses for maximum flexibility and security. For 802.1Q VLANs, a port on a switch can be assigned to a VLAN; all other switches learn about that VLAN when the switches automatically communicate that knowledge via the GVRP protocol.

Switches supporting both VLAN schemes can be used to provide seamless migration from VLT to IEEE 802.1Q environments that preserve investment in current LAN developments and equipment.

Layer 3 Support

Multicast filtering using IGMP snooping
Multicast filtering enables the automatic configuration of filters for IP multicast traffic, such as video and audio broadcasts, allowing advanced multimedia applications to be delivered easily to the workgroup.

Layer 3 switching
Layer 3 switching is the implementation of routing protocols in leading-edge ASIC technology. Routing performance is dramatically and cost effectively boosted to enable the widespread deployment of intranets (IP-based networking).

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