Interface Module Overview; Feature Configuration Process; Traffic Handling; Hot Swap - 3Com 4005 Installation And Maintenance Manual

Interface Module
Overview
Feature Configuration
Process

Traffic Handling

Hot Swap

Fast Ethernet Interface
Modules
8-port 10/100BASE-TX
Fast Ethernet Module
The Switch 4005 contains fourteen slots in total, with twelve of those slots being
designated for interface modules. Fast Ethernet and Gigabit Interface Modules can
occupy any of the slots that are numbered 1 – 12 and can be installed in any order.
They cannot occupy slots M1 and M2, which are designated for Switch Fabric
Management Modules.
To configure features that affect ports on an interface module, you connect to
either the Web or CLI management interface on the primary Switch Fabric
Management Module. You do not connect to interface modules separately. In
addition, you do not load software on interface modules.
Each interface module learns addresses of locally attached devices and maintains a
database. When the source port and destination port of a given packet are located
on the same interface module, the packet remains local to the interface module
and is switched or routed between these ports.
However, when the destination address of a given packet is not local, the interface
module sends the packet over the backplane to the primary Switch Fabric
Management Module, which switches or routes the packet to the proper module
or floods it.
All Fast Ethernet and Gigabit Ethernet Interface Modules support hot swapping,
which means that you can remove modules and install modules while the chassis
is powered up and operating. Hot swapping does not interfere with the general
operation of the Switch. However, see the caveats and cautions in the "Safety
Precautions" and "Handling Precautions" sections.
3Com offers two Fast Ethernet modules to suit different cabling infrastructures.
This section outlines the physical attributes of each module.
Model Number — 3C16828
I
Size — Occupies one slot in the Switch 4005 chassis
I
Functionality — Layer 2 and Layer 3 switching
I
Physical features:
I
Diagnostic LED shows module status.
I
Release button and LED are used to remove the module.
I
Eight 10/100BASE-TX shielded RJ-45 ports provide a 10 Mbps or 100 Mbps
I
connection. Ports auto-negotiate for connection speed, duplex mode, and
flow control.
Module and Port LEDs — See Table 11 on page 52 for definitions.
I
Front faceplate — See Figure 19 on page 51 for details.
I
Cabling requirements:
I
Category 5 UTP or STP.
I
Maximum Segment Length for half or full duplex is 100 m (328 ft).
I
All RJ-45 ports on the module have automatic MDI/MDI-X detection.
I

Interface Module Overview

49