20
C
HAPTER
2: S
WITCH
4007 M
ODULES
Switch Fabric Modules
The Switch 4007 supports 9-port and 24-port Gigabit
Ethernet Switch Fabric modules. Both switch fabric
modules fit into slot 7 of the Switch 4007 chassis.
3Com enables you to simplify your installation by
selecting from four pre-configured starter kits.
■
Fast Ethernet starter kits are pre-configured with
one 9-port Switching Fabric (Model Number:
3CB9FG9) in slot 7.
■
Gigabit Ethernet starter kits are pre-configured
with one 24-port Switching Fabric (Model Number:
3CB9FG24T) in slot 7.
The Switch Fabric modules support the following key
features:
■
18 Gbps or 48 Gbps switching capacity
■
Hot-swapping of modules
■
IEEE 802.1D Spanning Tree Protocol bridging for
Gigabit Ethernet
■
Multicast packet firewall to limit broadcast storms
■
Port trunking support for 12 groups, with up to six
ports in a group
■
IEEE 802.1Q VLAN tagging for up to 126 groups of
port-based virtual LANs (VLANs)
■
Embedded Simple Network Management Protocol
(SNMP) management agent
■
Support for four RMON-1 groups: Ethernet
Statistics, History, Events, and Alarms
9-port Gigabit Ethernet Switch Fabric
Model Number: 3CB9FG9
The 9-port Gigabit Ethernet (GEN) Switch Fabric
Module is optimized for use in wiring closets. The
module has six non-blocking Gigabit Ethernet ports
that connect directly to the chassis backplane to
provide high-speed, low-latency connectivity between
Switch 4007 interface modules. Its front panel
features three non-blocking Gigabit Interface
Converter (GBIC) interface ports that accept optional
GBIC transceivers (see “GBIC Transceivers” on
page 25). Figure 6 shows the front panel.
Figure 6
Front Panel of 9-port Switch Fabric Module
To learn more about this module, refer to the
9-Port
Gigabit Ethernet Switch Fabric Module Quick Start
Guide
on the Online Manuals CD-ROM.
24-port Gigabit Ethernet Switch Fabric
Model Number: 3CB9FG24T
The 24-port Gigabit Ethernet (GEN) Switch Fabric
Module is designed for use in network backbones,
data centers, and other high-density network
segments. The 24-port GEN Switch Fabric Module has
24 nonblocking Gigabit Ethernet ports that connect
to the chassis backplane to provide high-speed,
low-latency connectivity between Switch 4007
switching modules. Figure 7 shows the front panel.
3CB9FG9
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