3COM 8810, 8814, 8807 User Manual

3Com® Switch 8800 Family
www.3Com.com Part No. 10015593, Rev. AB Published: June, 2007
Installation Guide
Switch 8807 Switch 8810 Switch 8814
3Com Corporation 350 Campus Drive Marlborough, MA USA 01752-3064
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CONTENTS

ABOUT THIS GUIDE
Conventions 5 Related Documentation 6 About this Document 6
1 PRODUCT OVERVIEW
Preface 7 General Architecture 10 Fabric Modules 17 System Specifications 24 Software Features 25
2 I/O AND APPLICATION MODULES
Overview 29 3C17511 1-port 10GBASE-X (XENPAK) 29 3C17512 2-port 10GBASE-X (XFP) Module 30 3C17513 12-port 1000BASE-X (SFP) Module 31 3C17514 24-port 1000BASE-X (SFP) Module 32 3C17516 24-port 10/100/1000BASE-T Module 33 3C17525 1-port 10GBASE-X Advanced (XENPAK) Module 33 3C17526 4-port 10GBASE-X (XFP) Module 34 3C17527 2-port 10GBASE-X (XFP) Advanced Module 35 3C17528 48port 10/100/1000 BASE-T (RJ-45) Module 36 3C17530 24-port 1000BASE-X (SFP) Advanced Module 37 3C17531 24-port 10/100/1000BASE-T Advanced Module 37 3C17532 48-port 10/100/1000 BASE-T (RJ-45) Access Module 38 3C17533 24-port 1000BASE-X (SFP) IPv6 Module 39 3C17534 24-port 10/100/1000BASE-T IPv6 Module 40 3C17536 4-port 10GBASE-X (XFP) QUAD IPv6 Module 40 3C17537 2-port 10GBASE-X (XFP) IPv6 Module 41 3C17538 48-port 1000BASE-X (SFP) IPv6 Module 42 Application Modules 43 Transceivers 46 Switch 8800 Port Densities 47
3 INSTALLATION PREPARATION
Safety Recommendations 49
Examining Installation Site 50 Installation Tools 52
4 SWITCH INSTALLATION
Confirming Installation Preparation 53 Installation Flow 53 Mounting the Switch in User-Supplied Cabinet 54 Connecting PGND Wire and Power Cord 59 Installing Cabling Rack 64 Installing Fan Tray 64 Installing PoE Lightning Protection Box 65 Installing I/O modules 66 Connecting Interface Cables 67 Cable Routing Recommendations 70 Cable Management 70 Verifying the Installation 73
5 DEBUGGING THE SYSTEM
Setting up Configuration Environment 75 Powering and Booting the Switch 76
6 SWITCH MONITORING AND MAINTENANCE
Monitoring the Switch 79 Hardware Maintenance 81 Upgrading the Software 86 Password Loss 95
A LIGHTNING PROTECTION OF THE SWITCH
Installing a Lightning Arrester for the AC Power 97 Installing a Lightning Arrester for the Network Port 98
B 3COM NETWORK MANAGEMENT
3Com Network Supervisor 101 3Com Network Director 102 3Com Network Access Manager 102 3Com Enterprise Management Suite 103 Integration Kit with HP OpenView Network Node Manager 103

ABOUT THIS GUIDE

This guide describes the 3Com® Switch 8800 and how to install hardware, configure and boot software, and maintain software and hardware. This guide also provides troubleshooting and support information for your switch.
This guide is intended for Qualified Service personnel who are responsible for configuring, using, and managing the switches. It assumes a working knowledge of local area network (LAN) operations and familiarity with communication protocols that are used to interconnect LANs.
n

Conventions Ta bl e 1 lists icon conventions that are used throughout this guide.

Always download the Release Notes for your product from the 3Com World Wide Web site and check for the latest updates to software and product documentation:
http://www.3com.com
Ta bl e 1 Notice Icons
Icon Notice Type Description
Information note Information that describes important features or
n
Caution Information that alerts you to potential loss of data
c
Warning Information that alerts you to potential personal
w
Ta bl e 2 lists text conventions that are used throughout this guide.
Ta bl e 2 Text Conventions
instructions.
or potential damage to an application, system, or device.
injury.
Convention Description
Screen displays This typeface represents information as it appears on the
screen.
Keyboard key names If you must press two or more keys simultaneously, the key
names are linked with a plus sign (+), for example:
Press Ctrl+Alt+Del
The words “enter” and “type” When you see the word “enter” in this guide, you must type
something, and then press Return or Enter. Do not press Return or Enter when an instruction simply says “type.”
6 ABOUT THIS GUIDE
Table 2 Text Conventions
Convention Description
Words in italics Italics are used to:
Emphasize a point.
Denote a new term at the place where it is defined in the text.
Identify menu names, menu commands, and software button names.
Examples:
From the Help menu, select Contents.
Click OK.
Words in bold Boldface type is used to highlight command names. For
example, “Use the display user-interface command to...”

Related Documentation

About this Document

c
The following manuals offer additional information necessary for managing your Switch 8800:
Switch 8800 Command Reference Guide — Provides detailed descriptions of
command line interface (CLI) commands, that you require to manage your Switch 8800.
Switch 8800 Configuration Guide— Describes how to configure your Switch
8800 using the supported protocols and CLI commands.
Switch 8800 Release Notes — Contains the latest information about your
product. If information in this guide differs from information in the release notes, use the information in the Release Notes.
These documents are available in Adobe Acrobat Reader Portable Document Format (PDF) on the 3Com World Wide Web site:
http://www.3com.com/
3Com supports only the commands that are described in this document set. You may encounter commands in the device’s command line interface (CLI) that are not described in this guide. Any command that you see in the CLI but is not described in this guide is not supported in this version of the software. Unsupported commands may result in a loss of data and you enter them at your own risk.

PRODUCT OVERVIEW

1

Preface The 3Com Switch 8800 Family of Routing Switches (referred to as the Switch 8800

Family) are intelligent, multi-layer modular LAN switches and are ideal for enterprise environments where non-stop availability of critical applications and the highest performance, security, and granular control are required. The Switch 8800 Family delivers high density Gigabit and 10 Gigabit switching in an integrated chassis platform. Built-in support for IPv6, MPLS, Power over Ethernet (PoE), and
1.44 Tbps backplane capacity ensures unprecedented investment protection.
Resilient Layer-3 routing, hot-swap modules, and redundant power, along with sub one-second fabric fail over on the Switch 8800, ensure (24 x 7) availability to support the most demanding enterprise core and campus environments. Advanced Quality of Service features such as bandwidth management and packet classification optimize quality for real-time voice and video applications. Intrusion prevention security capabilities such as IEEE 802.1X Network Login and Access Control Lists ensure that only authorized users can access network resources.
The Switch 8800 is focused on delivering functionality towards the higher end of the large Enterprise, with a 4-port 10 Gigabit Module, high density 48-port Gigabit Modules, as well as a group of Advanced Modules with support for larger routing tables and/or MPLS. Power over Ethernet (PoE) is built into all Switch 8800s.
Application modules for the Switch 8800 provide the flexibility to add a firewall, IPsec encryption, network monitoring with NetFlow, and Layer 2 VPN networking using Virtual Private LAN Service (VPLS) by simply adding a module to the chassis.
8 CHAPTER 1: PRODUCT OVERVIEW
Currently, the Switch 8800 Family include the following models:
Switch 8807: This model provides up to 600 Gbps switching capacity. It
Figure 1 3Com Switch 8807 (7-Slot Chassis)
Switch 8810: This model provides up to 960 Gbps switching capacity. It
supports (for example) up to 240 GE ports and 20 x 10GE ports.
supports (for example) up to 192 GE ports and 32 x 10GE ports.
Figure 2 3Com Switch 8810 (10-Slot Chassis)
Preface 9
Switch 8814: This model provides up to 1.44 Tbps switching capacity. It
supports (for example) up to 576 GE ports and 48 x 10GE ports.
Figure 3 3Com Switch 8814 (14-Slot Chassis)
10 CHAPTER 1: PRODUCT OVERVIEW
I/O Module
Fabric
PoE Entry
AC PSU
AC PSU
Fan tray
I/O Module
I/O Module
Fabric
I/O Module
I/O Module

General Architecture The Switch 8800 Family use integrated chassis, which can be subdivided into

power area, board area, backplane and fan area.

Chassis and Slots Switch 8807

Figure 4 Switch 8807 slots
The Switch 8807 chassis provides seven slots in its board area: The top two
accommodate fabrics, which can operate in 1+1 redundancy mode; the remaining five accommodate I/O or application modules, which you can select from various available models. All modules in this area are hot-swappable.
At the bottom of the chassis is the power area that can accommodate one PoE
entry module and two PSUs. The two PSUs are online-swappable; they can operate in 1+1 redundancy mode. The switch supports AC power inputs.
On the right of the chassis is the fan area that contains one vertical
hot-swappable fan tray. The fan tray draws and exhausts air from left to right.
Switch 8810
Figure 5 Switch 8810 slots
I/O Module
I/O Module
I/O Module
I/O Module
Fabric
Fabric
I/O Module I/O Module I/O Module
I/O Module
General Architecture 11
Fan tray
AC PSU
The Switch 8810 chassis provides ten slots in its board area: The middle two
PoE
Entry
AC PSU
accommodate fabric modules, which can operate in 1+1 redundancy mode; the remaining eight accommodate I/O or application modules, which you can select from various available models. All modules in this area are hot-swappable.
At the bottom of the chassis is the power area that can accommodate one PoE
entry module and two PSUs. The two PSUs are online-swappable; they can operate in 1+1 redundancy mode. The switch supports AC power inputs.
On the right of the chassis is the fan area that contains one vertical
hot-swappable fan tray. The fan tray draws and exhausts air from left to right.
12 CHAPTER 1: PRODUCT OVERVIEW
Switch 8814
Figure 6 Switch 8814 slots
I/O Module I/O Module I/O Module
I/O Module
I/O Module I/O Module
Fabric
Fabric I/O Module I/O Module I/O Module I/O Module I/O Module I/O Module
AC PSU
The Switch 8814 chassis provides 14 slots in its board area: The middle two
PoE
entry
AC PSU
Fan tray 1 Fan tray 2
accommodate fabric modules, which can operate in 1+1 redundancy mode; the remaining 12 accommodate I/O or application modules, which you can select from various available models. All modules in this area are hot-swappable.
At the bottom of the chassis is the power area that can accommodate one PoE
entry module and two PSUs. The two PSUs are online-swappable. The switch supports AC power inputs.
On the right of the chassis is the fan area that contains two vertical
hot-swappable fan trays. The fan trays draw and exhaust air from left to right.

Backplane The backplane of the Switch 8800 Family allows high-speed data exchange

between fabrics and I/O modules, as well as the exchange of various management and control signals in the system.
Functions
The following are the main functions of the backplane:
Providing communication channels for signal exchange between boards
Supporting board hot-swapping
Supporting auto-discovering boards in slots
Connecting PSUs, distributing power and providing monitor channels to
various components (PSUs, fabrics and I/O modules) in the chassis.
Structure
Switch 8807

AC Power System

General Architecture 13
The Switch 8807 uses a passive backplane, which provides five I/O module interfaces, two fabric interfaces, one fan interface, and three -48V power interfaces (two for PSUs and one for PoE entry module).
Switch 8810
The Switch 8810 uses a passive backplane, which provides eight I/O module interfaces, two fabric interfaces, one fan interface, and three -48V power interfaces (two for PSUs and one for PoE entry module).
Switch 8814
The Switch 8814 uses a passive backplane, which provides 12 I/O module interfaces, two fabric interfaces, two fan interfaces, and three -48V power interfaces (two for PSUs and one for PoE entry module).
n
The Switch 8800 Family supports AC power inputs.
The Switch 8800 Family supports 1+1 power supply redundancy.
The PSUs of the Switch 8800 Family are online-swappable.
The Switch 8800 Family supports AC power inputs. The power frame is at the bottom of the chassis, with a height of 3U. In the same slot, you can insert an AC PSU. The power frame is in different compartment from the functional board frame and connected to the latter with cables, which are routed along the back of the chassis. The power supply is cooled by built-in fans of the PSUs, which draw air into the chassis from the front and exhaust air out of the chassis from the back.
Ta bl e 1 Specifications for AC PSUs
Specifications
Item
Rated voltage range
Max voltage range 90 to 264 VAC, 50/60
Max input current 15 A 15 A 15 A
Max output power 1200 W 1200 W (90 to 160 V)
Switch 8807 Switch 8810 Switch 8814
100 to 240 VAC,
50/60 Hz
Hz
100 to 120 VAC, 60 Hz
200 to 240 VAC, 50 Hz
90 to 264 VAC, 50/60 Hz
2000 W (160 to 264 V)
100 to 120 VAC, 60 Hz
200 to 240 VAC, 50 Hz
90 to 264 VAC, 50/60 Hz
1200 W (90 to 160 V)
2000 W (160 to 264 V)

PoE Power Supply The Switch 8800 Family supports Power over Ethernet (PoE). With this feature, a

Switch 8800 Family switch equipped with an external PoE power supply and PoE-capable modules can deliver 48 VDC to its remotely powered devices (PDs, such as IP phones, WLAN APs and network cameras) through twisted pairs.
The Switch 8800 Family can supply power to remote PDs through the Ethernet
electrical ports on the I/O modules. Each I/O module can simultaneously supply power to up to 48 PDs with the maximum distance of 100 m (328.1 feet).
Each Ethernet port can deliver up to 15.4 W to its PD.
14 CHAPTER 1: PRODUCT OVERVIEW
A Switch 8800 supports up to 4500 W (220 V)/2250 W (110 V) power to its
PoE entry area
The PoE-supported Switch 8807/Switch 8810/Switch 8814 chassis has a PoE entry area between the two power supply units. You can insert a PoE 3C17510 Switch 8800 PoE Entry Module into this area, and connect this module to a 3C17509 Switch 8800 External PoE Power Rack so as to import the output power of the External Power Rack unit.
Figure 7 PoE entry module
PDs. It determines whether to deliver power to a newly detected PD depending on the power it currently supplied.
n
External PoE Power Rack (3C17509)
The Switch 8800 External Power Rack is available for the Switch 8807, Switch 8810, and Switch 8814. The External Power Rack has three AC inputs and one DC outputs.
Figure 8 Front panel of the 3C17509 Switch 8800 External Power Rack PoE power supply
Figure 8 shows its front panel.
The external PoE power system supports 2+1 redundancy and online-swapping of PSUs.
To implement the PoE function on the Switch 8800 Family, PoE-capable interface module is required. There are two modules are PoE-capable:
3C17528 Switch 8800 48-port 10/100/1000BASE-T
3C17532 Switch 8800 48-port 10/100/1000BASE-T Access
Both of these I/O Modules are PoE-capable, and will function with the addition of a 3C17529 PoE Option (PoE DIMM Module).
General Architecture 15
Ta bl e 2 describes typical equipment configurations and specifications of external PoE power system.
Ta bl e 2 Typical equipment configurations and specifications of external PoE power system
Item Description
Physical dimensions (H x W x D) 177 x 486 x 320.5 mm (7.0 x 19.1 x 12.6 in.)
System controller One
Rectifier Two NP2500UAC (required) + one redundant
NP2500UAC (optional)
AC accessory Three AC inputs and switches
Three-phase AC voltage detection circuit
Input voltage range: 90 to 290 VAC; rated voltage and current: 250 VAC, 20 A
DC accessory A single DC output, with max output current of
Max power consumption 4500 W
93 A
The external PoE power system has monitor function. It provides one system monitoring module, one RS232 and two RS485 monitoring interfaces. The system monitoring module reports the running information of the PSUs in the system to a fabric through RS232 or RS485 interface and indicates alarm status by the alarm LED (ALM). You can connect cables to the interfaces from the front as well as the rear of the frame.
n
RS485 monitoring interface.
Ta bl e 3 LEDs of external PoE power system
LED Label Color
Input power LED AC Green ON OFF Loss of AC input power, or blown
Output power LED DC Green ON OFF No DC output from PSU
Fault LED Fault Red OFF ON Irreversible fault occurred in PSU
Running status LED RUN Green ON OFF PSU shutdown or PSU running
Alarm LED ALM Red OFF ON Loss of AC input power,

MBUS Introduction

The MBUS is a service-independent maintenance and test bus. No service traffic goes through the MBUS. The shutdown and reset of the MBUS does not affect the services on the switch, and faults that have occurred on modules do not affect the MBUS.
The external PoE power system for the Switch 8800 Family only supports the
Normal state
Abnormal state Abnormal reason
fuse
trouble
under-voltage or over-voltage input, under-voltage or over-voltage output, or PSU fault
Through the MBUS, the system instructs the MBUS modules on individual cards to power on/off the cards one by one in turn, thus prevent power surging. The MBUS module software must support online upgrade.
16 CHAPTER 1: PRODUCT OVERVIEW
Role and function
The MBUS system is powered by 5 V from the MBUS on the fabric. The 5 V power on the two fabrics are redundant to each other.
Each MBUS module is attached to the MBUS, which contains two control lines: MBUS0 and MBUS1.
Each card has an independent MBUS module, those on the fabrics are primary MBUS modules, and those on application modules are secondary MBUS modules.
When the fabrics operate in redundancy mode, the MBUS module on the active fabric is the active module, and the one on the standby fabric is the standby module.
The MBUS uses a controller area network (CAN) bus as its control bus, that uses the 1:1 hot backup and transfers control information at 1 Mbps.

Fan Tray The Switch 8807 uses one 25 W fan tray, which contains four 120 x 120 x 25.4

mm (4.7 x 4.7 x 1.0 in.) axial fan units. The fans can be governed in two modes: fabric-controlled or temperature-controlled. They operate at -48 VDC supplied from the backplane.
The Switch 8810 uses one 35 W fan tray, which contains six 120 x 120 x 25.4
mm (4.7 x 4.7 x 1.0 in.) axial fan units. The fans can be governed in two modes: fabric-controlled or temperature-controlled. They operate at -48 VDC supplied from the backplane.
The Switch 8814 uses two 25 W fan trays, each of which contains four 120 x
120 x 25.4 mm (4.7 x 4.7 x 1.0 in.) axial fan units (and totally eight for the two fan trays). The fans can be governed in two modes: fabric-controlled or temperature-controlled. They operate at -48 VDC supplied from the backplane.
Figure 9 Fan tray panel of the Switch 8800 Family

Fabric Modules 17

Ta bl e 4 LEDs on fan tray panel
LED Color Status Status
RUN Green OFF The fan tray is faulty.
ON The fan tray is operating normally.
ALM Red OFF The fan tray is operating normally.
ON The fan tray is faulty.
Fabric Modules The Switch Fabric serves as the core of the Switch 8800 Family.The following fabric
models are available to the Switch 8800 Family:
3C17508 - 3Com Switch 8800 360 Gbps Fabric
3C17539 - 3Com Switch 8800 720 Gbps Fabric
These fabric modules provide:
Route calculating and forwarding table maintenance.
Integrating Crossbar switching fabric to accomplish service exchange between
different boards.
System configuration and monitoring functions, which allows the system to
monitor other boards and upgrade/reset service board software.

360 Gbps Switch Fabric Technical specifications

This model applies to the 3C17508. See Table 5 for its specifications.
Ta bl e 5 360 Gbps Switch Fabric specifications
Item Specifications
CPU MPC755
Boot ROM 512 KB
SDRAM 512 MB (expandable to 1 GB)
Physical dimensions (W x D) 366.7 x 340 mm (14.4 x 13.4 in.)
Port One Console port, for local configuration management
Max power consumption 60 W
Panel
On its panel, the 360 Gbps Switch Fabric provides a CF port, CF LED (CFS), 10Base-T/100Base-TX port, RS232/485 port, Console port, AUX port, RESET button, I/O module status LEDs, and 360 Gbps Switch Fabric status LEDs (SFS, ACT, ALM, RUN) in turn, as shown in
One AUX port, for remote dialup configuration management One 10Base-T/100Base-TX port, for software upgrade and network management One RS232/485 port, for connecting external PoE power frame to provide the PoE function One hot-swap-supported CF port
Figure 10.
18 CHAPTER 1: PRODUCT OVERVIEW
Figure 10 360 Gbps Switch Fabric panel
Compact Flash (CF slot)
The 360 Gbps Switch Fabric module provides a CF slot to accommodate a standard CF card, where you can save logging information, host version information, alarming and other diagnostic information and conveniently upgrade software online. The fabric ships with a CF memory card.
Management Ports
The Management 10Base-T/100Base-TX port uses an RJ-45 connector. It can connect a background terminal for system program loading and debugging, or connect a network management station for remote system management.
Ta bl e 6 Management 10Base-T/100Base-TX port specifications
Item Description
Connector RJ-45
Number of ports One
Rate 10 Mbps, half duplex/full duplex
100 Mbps, half duplex/full duplex
Max. transmission segment over the selected medium
Service System program upgrade and network
100 m (328 ft.) over the category-5 twisted pair cable (crossover cable is required).
management
The following table describes the status LEDs for the management 10Base-T/100Base-TX port.
Ta bl e 7 Status LEDs for the management 10Base-T/100Base-TX port
LED Status
LINK OFF No link is present.
ON A link is present.
ACT OFF No packets are transmitted/received on the port.
Blinking Packets are being transmitted/received on the port.
RS232/485 port
The RS232/485 port uses RJ-45 connector, for connecting external PoE power frame when supported and monitoring its status.
Ta bl e 8 RS232/485 port specifications
Item Description
Connector RJ-45
Number of ports One RS 232 port and one RS485 port
Fabric Modules 19
Table 8 RS232/485 port specifications
Item Description
Service The port for monitoring and communication with the external subsystem,
such as external PoE power supply module
Console port
The Console port uses an RJ-45 connector. It can be connected to a background terminal for system debugging, maintenance, management, and host software loading.
Ta bl e 9 Console port specifications
Item Description
Connector RJ-45
Standard Asynchronous EIA/TIA-232
Baud rate 9600 bps (default)
Transmission segment
Service Connects a serial port of a local PC and runs terminal emulation on the
15 m (49 ft.)
PC.
n
You can choose your own baud rate for the Console port.
AUX port
The AUX port uses an RJ-45 connector. The port can serve as a backup port for the Console port to connect a background terminal, or directly connect a modem device, for remote system debugging, configuration, maintenance and management.
Ta bl e 10 AUX port specifications
Item Description
Connector RJ-45
Standard Asynchronous EIA/TIA-232
Service Connects a serial port of a PC (through a Modem pair for a remote PC) and runs
terminal emulation on the PC.
RESET button
You can press the RESET button on the panel to reset the 360 Gbps Switch Fabric module.
Status LEDs
CF status LED
You can learn the operating status of the CF card by reading the CF status LED on the panel.
20 CHAPTER 1: PRODUCT OVERVIEW
Ta bl e 11 CF status LED
Status LEDs for I/O module
The 360 Gbps Switch Fabric module has 12 pairs of LEDs to indicate the operating status of 12 I/O module.
Ta bl e 12 Status LEDs for I/O module
LED Status
CFS ON The CF card is in position and is idle. You cannot remove the card.
Blinking The CF card is in position and reading/writing data. You cannot remove
OFF The CF card is out of position or offline (you can force the in-position CF
LED Status
RUN ON The module is faulty.
OFF The module is faulty or out of position.
Blinking (1s) The module is running normally.
Fast blinking (125 ms) The module is booting or not registered successfully.
ALM ON The module has alarms.
OFF The module has no alarms or is out of position.
0~5, 8~13
Indicate slots 0 through 5 and slots 8 through 13
the card.
card to go offline using the appropriate background command). You can remove/insert the card.
Status LEDs for the 360 Gbps Switch Fabric module
You can learn the operating status of 360 Gbps Switch Fabric module by reading the SFS, ACT, ALM and RUN LEDs on it. The following table gives a summary of the four LEDs.
Ta bl e 13 Status LEDs for the 360 Gbps Switch Fabric module
360 Gbps Switch Fabric LED
SFS ON The switching fabric unit is active.
RUN Green The 360 Gbps Switch Fabric module is faulty.
ALM Red The 360 Gbps Switch Fabric module has alarms.
ACT Green The 360 Gbps Switch Fabric module is active.
Status
OFF The switching fabric unit is standby.
OFF The 360 Gbps Switch Fabric module is faulty.
Green blinking The 360 Gbps Switch Fabric module runs normally.
OFF The 360 Gbps Switch Fabric module has no alarms.
OFF The 360 Gbps Switch Fabric module is standby.

720 Gbps Switch Fabric Technical specifications

This model applies to the 3C17539. See Table 5 for its specifications.
Ta bl e 14 720 Gbps Switch Fabric specifications
Item Specifications
CPU MPC755
Boot ROM 512 KB
SDRAM 512 MB (expandable to 1 GB)
Physical dimensions (W x D) 366.7 x 340 mm (14.4 x 13.4 in.)
Port One Console port, for local configuration management
Max power consumption 110 W
Panel
On its panel, the 720 Gbps Switch Fabric provides a CF slot, CF LED (CFS), 10Base-T/100Base-TX port, RS232/485 port, Console port, AUX port, RESET button, I/O module status LEDs, and 360 Gbps Switch Fabric status LEDs (SFS, ACT, ALM, RUN) in turn, as shown in card.
Fabric Modules 21
One AUX port, for remote dialup configuration management One 10Base-T/100Base-TX port, for software upgrade and network management One RS232/485 port, for connecting external PoE power frame to provide the PoE function One hot-swap-supported CF port
Figure 10. The fabric ships with a CF memory
Figure 11 720 Gbps Switch Fabric panel
Compact Flash (CF slot)
The 720 Gbps Switch Fabric module provides a CF port to accommodate a standard CF card, where you can save logging information, host version information, alarming and other diagnostic information and conveniently upgrade software online.
Management Ports
The Management 10Base-T/100Base-TX port uses an RJ-45 connector. It can connect a background terminal for system program loading and debugging, or connect a network management station for remote system management.
Ta bl e 15 Management 10Base-T/100Base-TX port specifications
Item Description
Connector RJ-45
Number of ports One
Rate 10 Mbps, half duplex/full duplex
100 Mbps, half duplex/full duplex
22 CHAPTER 1: PRODUCT OVERVIEW
Table 15 Management 10Base-T/100Base-TX port specifications
The following table describes the status LEDs for the management 10Base-T/100Base-TX port.
Ta bl e 16 Status LEDs for the management 10Base-T/100Base-TX port
RS232/485 port
Item Description
Max. transmission segment over the selected medium
Service System program upgrade and network
LED Status
LINK OFF No link is present.
ON A link is present.
ACT OFF No packets are transmitted/received on the port.
Blinking Packets are being transmitted/received on the port.
100 m (328 ft.) over the category-5 twisted pair cable (crossover cable is required).
management
The RS232/485 port uses RJ-45 connector, for connecting external PoE power frame when supported and monitoring its status.
Ta bl e 17 RS232/485 port specifications
Item Description
Connector RJ-45
Number of ports One RS 232 port and one RS485 port
Service The port for monitoring and communication with the external subsystem,
such as external PoE power supply module
Console port
The Console port uses an RJ-45 connector. It can be connected to a background terminal for system debugging, maintenance, management, and host software loading.
Ta bl e 18 Console port specifications
Item Description
Connector RJ-45
Standard Asynchronous EIA/TIA-232
Baud rate 9600 bps (default)
Transmission segment
Service Connects a serial port of a local PC and runs terminal emulation on the
15 m (49 ft.)
PC.
n
You can choose your own baud rate for the Console port.
AUX port
Fabric Modules 23
The AUX port uses an RJ-45 connector. The port can serve as a backup port for the Console port to connect a background terminal, or directly connect a modem device, for remote system debugging, configuration, maintenance and management.
Ta bl e 19 AUX port specifications
Item Description
Connector RJ-45
Standard Asynchronous EIA/TIA-232
Service Connects a serial port of a PC (through a Modem pair for a remote PC) and runs
terminal emulation on the PC.
RESET button
You can press the RESET button on the panel to reset the 720 Gbps Switch Fabric module.
Status LEDs
CF status LED
You can learn the operating status of the CF card by reading the CF status LED on the panel.
Ta bl e 20 CF status LED
LED Status
CFS ON The CF card is in position and is idle. You cannot remove the card.
Blinking The CF card is in position and reading/writing data. You cannot remove
the card.
OFF The CF card is out of position or offline (you can force the in-position CF
card to go offline using the appropriate background command). You can remove/insert the card.
Status LEDs for I/O module
The 720 Gbps Switch Fabric module has 12 pairs of LEDs to indicate the operating status of 12 I/O module.
Ta bl e 21 Status LEDs for I/O module
LED Status
RUN ON The module is faulty.
OFF The module is faulty or out of position.
Blinking (1s) The module is running normally.
Fast blinking (125 ms) The module is booting or not registered successfully.
ALM ON The module has alarms.
OFF The module has no alarms or is out of position.
0~5, 8~13
Indicate slots 0 through 5 and slots 8 through 13
Status LEDs for the 720 Gbps Switch Fabric module
24 CHAPTER 1: PRODUCT OVERVIEW
You can learn the operating status of 720 Gbps Switch Fabric module by reading the SFS, ACT, ALM and RUN LEDs on it. The following table gives a summary of the four LEDs.
Ta bl e 22 Status LEDs for the 720 Gbps Switch Fabric module
RESET button
You can press the RESET button on the panel to reset the 720 Gbps Switch Fabric.
360 Gbps Switch Fabric LED
SFS ON The switching fabric unit is active.
RUN Green The 720 Gbps Switch Fabric module is faulty.
ALM Red The 720 Gbps Switch Fabric module has alarms.
ACT Green The 720 Gbps Switch Fabric module is active.
Status
OFF The switching fabric unit is standby.
OFF The 720 Gbps Switch Fabric module is faulty.
Green blinking The 720 Gbps Switch Fabric module runs normally.
OFF The 720 Gbps Switch Fabric module has no alarms.
OFF The 720 Gbps Switch Fabric module is standby.
Status LEDs
See the section “Status LEDs” on page 19.

System Specifications The following table summarizes the physical specifications of the Switch 8800

Family.
Ta bl e 23 Technical specifications of the Switch 8800 Family
Item Switch 8807 Switch 8810 Switch 8814
Dimensions (H x W x D)
Weight (full load) 600 kg (143 lb) 80 kg (176 lb) 100 kg (220 lb)
Max power consumption
Switching capacity (see Note 1)
Number of VLANs
Maximum MAC address table size
Forwarding table entries
Number of fabric slots
486 x 436 x 450 mm (19.1 x 17.2 x 17.7 in.)
1200 W 2000 W 2000 W
Fab360: 600 Gbps (see Note 2)
4 K
14 K/per module, total 14 K x number of modules
See Note 3
128 K/256 K
2 2 2
619 x 436 x 450 mm (24.4 x 17.2 x 17.7 in.)
Fab360: 480Gbps
Fab720: 960Gbps
753 x 436 x 450 mm (29.6 x 17.2 x 17.7 in.)
Fab360: 720Gbps
Fab720: 1440Gbps

Software Features 25

Table 23 Technical specifications of the Switch 8800 Family
Item Switch 8807 Switch 8810 Switch 8814
fabric module type
Number of I/O module slots
User interface 10/100/1000BASE-TX RJ45
Operating temperature
Operating humidity (noncondensing)
Storage temperature
Storage humidity 10% to 90%
360 Gbps Fabric 360 Gbps Switch
Fabric
720 Gbps Switch Fabric
5 8 12
1000BASE-X (SFP)
10BASE-X (XENPAK)
10BASE-X (XFP)
0 to 40C (32 to 104F)
10% to 90%
-10 to 70C (14 to 158F)
360 Gbps Switch Fabric
720 Gbps Switch Fabric
n
load-sharing fabrics.
Note 2: The 7-slot has additional backplane traces per slot compared to the 14-slot and the 10- slot chassis. The additional traces enable higher capacity per slot using the 360G Fabric compared to the 10-slot and 14-slot chassis.
Note 3: See the Switch 8800 Configuration Guide for rules and limitations.
Software Features The software of the Switch 8800 Family uses fully distributed processing and runs
on 3Com network operating system Comware. The following table summaries the supported software features.
Ta bl e 24 Software features of the Switch 8800 Family
Item Description
VLAN IEEE 802.1Q-compliant VLAN
Port-based, protocol-based (8 groups), IP subnet-based VLAN division
GARP VLAN registration protocol (GVRP)
Super VLAN
Isolate user VLAN
Guest VLAN
Dynamic VLAN
STP IEEE 802.1d/IEEE 802.1w/IEEE 802.1s-compliant
spanning tree protocol (STP)/rapid STP (RSTP)/multiple STP (MSTP)
Note 1: The switching capacity in the above table is calculated based on two
26 CHAPTER 1: PRODUCT OVERVIEW
Table 24 Software features of the Switch 8800 Family
Item Description
Flow control IEEE 802.3x flow control (full duplex)
Back pressure flow control (half duplex)
Broadcast/multicast suppression Supported
Multicast Internet group management protocol (IGMP) snooping
IGMP
Internet group management protocol (IGMP) v2
Protocol-independent multicast-dense mode (PIM-DM)
Protocol-independent multicast-sparse mode (PIM-SM)
Multicast source discovery protocol (MSDP)
Multiprotocol border gateway protocol (MBGP)
Any-RP
IP routing Static routing
Routing information protocol (RIP) v1/v2
Open shortest path first (OSPF) v2
Border gateway protocol (BGP)
Intermediate system-to-intermediate system (IS-IS)
Equal cost route forwarding
Routing policy
Policy routing
OSPF/IS-IS/BGP graceful restart (GR)
Link aggregation Aggregation across cards
LACP
DHCP DHCP server
DHCP relay
DHCP Option 82
Mirroring Port-based mirroring
Multiprotocol Label Switching (MPLS) L3 MPLS VPN, inter-domain MPLS VPN, hierarchy of PE
(HoPE), CE dual homing, MCE, multi-role host
VLL: Martini, Kompella, and CCC mode
VPLS
QoS Traffic classification based on port, MAC address,
VLAN, IP address, IP priority, TCP/UDP port number, DSCP priority, Type of service (ToS) priority, class of service (CoS) priority, etc.
Traffic monitoring, with granularity of 8 Kbps
Traffic shaping
Priority mark/remark
Queue scheduling: strict priority (SP), weighted round Robin (WRR) and SP + WRR <par
8 priority queues for each port
Congestion avoidance algorithms: tail drop (TD) and weighted random early detection (WRED)
Software Features 27
Table 24 Software features of the Switch 8800 Family
Item Description
Security Hierarchical user management and password
protection
Password control
802.1x authentication
Packet filtering
Port-based broadcast frame suppression, speed calculation in bytes or packets
Protection from attacks by virus packets, such as DOS attacks
AAA/RADIUS/HWTACACS
SSH 2.0 (security shell)
Firewall
IPsec
Education network accounting
QinQ Port VLAN VPN
Flexible QinQ
Network Monitoring feature NetFlow v5/v8/v9
Management and maintenance Configuration through the command line interface
Loading and upgrade Loading and upgrade using the XModem protocol
(CLI)
Configuration through the Console/AUX port
Telnet configuration/maintenance through Ethernet ports
Modem dialup configuration/maintenance through AUX port
SNMP management, with the 3Com network management application, RMON (remote monitoring), and 1/2/3/9 groups of MIBs.
System logging
Hierarchical alarming
Debugging information output
ping and tracert commands
NQA
Loading and upgrade using FTP/TFTP
Loading of BootROM and host software
n
All specifications are subject to changes without notice. For up-to-date information, please contact 3Com marketing or technical support personnel.
28 CHAPTER 1: PRODUCT OVERVIEW

I/O AND APPLICATION MODULES

2

Overview The Switch 8800 Family are modular switches that are designed following industry

standards. The following I/O modules are available to the Switch 8800 Family:
Ta bl e 25 I/O modules available to the Switch 8800 Family
I/O module User interface
3C17511 1-port 10GBASE-X (XENPAK)
3C17512 2-port 10GBASE-X (XFP)
3C17513 12-port 1000BASE-X (SFP)
3C17514 24-port 1000BASE-X (SFP)
3C17516 24-port 10/100/1000BASE-T (RJ-45)
3C17525 1-port 10GBASE-X (XENPAK) Advanced
3C17526 4-port 10GBASE-X (XFP)
3C17527 2-port 10GBASE-X (XFP) Advanced
3C17528 48-port 10/100/1000 BASE-T (RJ-45)
3C17530 24-port 1000BASE-X (SFP) Advanced
3C17531 24-port 10/100/1000BASE-T (RJ-45) Advanced
3C17532 48-port 10/100/1000BASE-T (RJ-45) Access
3C17533 24-port 1000BASE-X (SFP) IPv6 Module
3C17534 24-port 10/100/1000BASE-T (RJ-45) IPv6 Module
3C17536 4-port 10GBASE-X (XFP) QUAD IPv6
3C17537 2-port 10GBASE-X (XFP)
3C17538 48-port 1000BASE-X (SFP) IPv6
3C17542 Network Monitoring Module
3C17546 Firewall Module
3CR1754766 IPsec Module
3C17548 Virtual Private LAN Service (VPLS)

3C17511 1-port 10GBASE-X (XENPAK)

Specifications This section provides specifications for the 1-port 10GBASE-X (XENPAK) 3C17511

module.
Ta bl e 26 3C17511 module specifications
Item Specification
CPU MPC8245
30 CHAPTER 2: I/O AND APPLICATION MODULES
Table 26 3C17511 module specifications
Item Specification
Boot ROM 512 KB
SDRAM 128 MB/256 MB
Physical dimensions (W x D) 366.7 x 340 mm(14.4 x 13.4 in.)
Max power consumption 45 W
Number of ports One
Connector XENPAK/SC
Rate 10 Gbps

Panel and LEDs Figure 12 3C17511 module panel

The 3C17511 module has two port LEDs for the 10GE port on its panel.

Matching Cable See Table 66 on page 46 for the XENPAK optical modules available to the 10GE

3C17512 2-port 10GBASE-X (XFP) Module

Specifications The 3C17512 modules provide two 10GBASE-X XFP/LC ports.

Ta bl e 27 Port LEDs on the 3C17511 module
LED Status Meaning
LINK OFF No link is present.
Green ON A link is present.
ACT OFF No packets are transmitted/received on the port.
Orange blinking Packets are being transmitted/received on the port.
XENPAK/SC optical/electrical port on the 3C17511 module and their matching cable types, which you can select as required.
This section provides specifications for the 2-port 10GBASE-X (XFP) module (3C17512).
Ta bl e 28 3C17512 module specifications
Item Specification
CPU MPC8245
Boot ROM 512 KB
SDRAM 128 MB/256MB
Physical dimensions (W x D) 366.7 x 340 mm (14.4 x 13.4 in.)
Max power consumption 87 W
Number of ports Two
Connector XFP
Table 28 3C17512 module specifications
Item Specification
Rate 10 Gbps

Panel and LEDs Figure 13 3C17512 module panel

The 3C17512 module has two LEDs for each optical port on its panel.
Ta bl e 29 1000 Mbps optical port LEDs on the 3C17512 module
LED Status Meaning
LINK OFF No link is present.
Green A link is present.
ACT OFF No packets are transmitted/received on the port.
Orange blinking Packets are being transmitted/received on the port.
3C17513 12-port 1000BASE-X (SFP) Module 31

Matching Cable See Table 66 on page 46 for the XFP optical modules available for the 10 Gbps XFP

3C17513 12-port 1000BASE-X (SFP) Module

Specifications The 3C17513 module provides 12 x 1000 Mbps SFP/LC optical ports.

optical ports on the 3C17512 module and their matching cable types, which you can select as required.
This section provides specifications for the 12-port 1000BASE-X (SFP) module (3C17513)
Ta bl e 30 3C17513 module specifications
Item Specification
CPU MPC8245
Boot ROM 512 KB
SDRAM 128 MB
Physical dimensions (W x D) 366.7 x 340 mm (14.4 x 13.4 in.)
Max power consumption 55 W
Number of ports 12
Connector SFP/LC
Rate 1.25 Gbps

Panel and LEDs Figure 14 3C17513 module panel

32 CHAPTER 2: I/O AND APPLICATION MODULES
The 3C17513 module has two LEDs for each port on its panel.
Ta bl e 31 Port LEDs on the 3C17513 module
LED Status Meaning
LINK OFF No link is present.
Green A link is present.
ACT OFF No packets are transmitted/received on the port.
Orange blinking Packets are being transmitted/received on the port.

Matching Cable See Table 66 on page 46 for the SFP optical modules available to the SFP optical

ports on the 3C17513 module and their matching cable types, which you can select as required.

3C17514 24-port 1000BASE-X (SFP) Module

Specifications The 3C17514 module provides 24 1000BASE-X (SFP) ports.

Panel and LEDs Figure 15 3C17514 module panel

This section provides specifications for the 24-port 1000BASE-X (SFP) module (3C17514).
Ta bl e 32 3C17514 module specifications
Item Specification
CPU MPC8245
Boot ROM 512 KB
SDRAM 128 MB/256 MB
Physical dimensions (W x D) 366.7 x 340 mm (14.4 x 13.4 in.)
Max power consumption 100 W
Number of ports 24
Connector SFP/LC
Rate 1.25 Gbps
The 3C17514 module has two LEDs for each 1000 Mbps optical port on its panel.
Ta bl e 33 Port LEDs on the 3C17514 module
LED Status Meaning
LINK OFF No link is present.
Green A link is present.
ACT OFF No packets are transmitted/received on the port.
Orange blinking Packets are being transmitted/received on the port.
3C17516 24-port 10/100/1000BASE-T Module 33

Matching Cable You can select appropriate SFP optical modules for the 1000 Mbps SFP optical

ports on the 3C17514 module according to your needs. For description of SFP optical modules available to the SFP optical ports and their matching cable types,
Ta bl e 66 on page 46.
see

3C17516 24-port 10/100/1000BASE-T Module

Specifications The 3C17516 module provides 24 10/100/1000BASE-T (RJ45) ports.

Panel and LEDs Figure 16 3C17516 module panel

This section provides specifications for the 24-port 10/100/1000BASE-T module (3C17516).
Ta bl e 34 3C17516 module specifications
Item Specification
CPU MPC8245
Boot ROM 512 KB
SDRAM 128 MB/256 MB
Physical dimensions (W x D) 366.7 x 340 mm (14.4 x 13.4 in.)
Max power consumption 110 W
Number of ports 24
Connector RJ-45
Rate 10/100/1000 Mbps

3C17525 1-port 10GBASE-X Advanced (XENPAK) Module

Specifications The 3C17525 module provides one 10GE XENPAK/SC optical/electrical port.

The 3C17516 module has one LED for each port on its panel.
Ta bl e 35 Port LEDs on the 3C17516 module
LED Status Meaning
LINK/ACT ON No link is present.
OFF A link is present.
Blinking Packets are being transmitted/received on the port.
This section provides specifications for the 1-port 10GBASE-X (XENPAK) Advanced module (3C17525).
34 CHAPTER 2: I/O AND APPLICATION MODULES
Ta bl e 36 3C17511 module specifications
Item Specification
CPU MPC8245
Boot ROM 512 KB
SDRAM 128 MB/256 MB
Physical dimensions (W x D) 366.7 x 340 mm(14.4 x 13.4 in.)
Max power consumption 45 W
Number of ports One
Connector XENPAK/SC
Rate 10 Gbps

Panel and LEDs Figure 17 3C17525 module panel

Matching Cable See Table 66 on page 46 for the XENPAK optical modules available for the 10GE

3C17526 4-port 10GBASE-X (XFP) Module

Specifications The 3C17526 module provides four 10GBASE-X (XFP) ports.

The 3C17525 module has two port LEDs for the 10GE port on its panel.
Ta bl e 37 Port LEDs on the 3C17525 module
LED Status Meaning
LINK OFF No link is present.
Green ON A link is present.
ACT OFF No packets are transmitted/received on the port.
Orange blinking Packets are being transmitted/received on the port.
XENPAK/SC optical/electrical port on the 3C17525 module and their matching cable types, which you can select as required.
This section provides specifications for the 4-port 10GBASE-X (XFP) module (3C17526).
Ta bl e 38 3C17526 module specifications
Item Specification
CPU MPC8245
Boot ROM 512 KB
SDRAM 128 MB/256 MB
Physical dimensions (W x D) 366.7 x 340 mm (14.4 x 13.4 in.)
Number of ports Four
Max power consumption 160 W
3C17527 2-port 10GBASE-X (XFP) Advanced Module 35
Table 38 3C17526 module specifications
Item Specification
Connector XFP
Rate 10 Gbps

Panel and LEDs Figure 18 3C17526 module panel

The 3C17526 module has two LEDs for each optical port on its panel.
Ta bl e 39 1000 Mbps optical port LEDs on the 3C17526 module
LED Status Meaning
LINK OFF No link is present.
Green A link is present.
ACT OFF No packets are transmitted/received on the port.
Orange blinking Packets are being transmitted/received on the port.

Matching Cable For details about XFP optical modules available to the XFP optical ports on the

3C17527 2-port 10GBASE-X (XFP) Advanced Module

Specifications The 3C17527 module provide two 10GBASE-X XFP/LC ports.

3C17526 module and their matching cable types, see
Ta bl e 66 on page 46.
This section provides specifications for the 2-port 10GBASE-X (XFP) Advanced module (3C17527).
Ta bl e 40 3C17527 module specifications
Item Specification
CPU MPC8245
Boot ROM 512 KB
SDRAM 128 MB/256MB
Physical dimensions (W x D) 366.7 x 340 mm (14.4 x 13.4 in.)
Max power consumption 87 W
Number of ports Two
Connector XFP
Rate 10 Gbps

Panel and LEDs Figure 19 3C17527 module panel

36 CHAPTER 2: I/O AND APPLICATION MODULES
The 3C17527 module has two LEDs for each optical port on its panel.
Ta bl e 41 1000 Mbps optical port LEDs on the 3C17527 module
LED Status Meaning
LINK OFF No link is present.
Green A link is present.
ACT OFF No packets are transmitted/received on the port.
Orange blinking Packets are being transmitted/received on the port.

Matching Cable See Table 66 on page 46 for the XFP optical modules that are available for the 10

Gbps XFP optical ports on the 3C17527 module and their matching cable types, which you can select as required.

3C17528 48port 10/100/1000 BASE-T (RJ-45) Module

Specifications The 3C17528 module provides 48 10/100/1000 BASE-T auto-sensing PoE-capable

Panel and LEDs Figure 20 3C17528 module panel

This section provides specifications for the 48-port 10/100/1000 BASE-T (RJ-45) module (3C17528).
RJ-45 ports.
Ta bl e 42 3C17528 module specifications
Item Specification
CPU MPC8245
BootROM 512 KB
SDRAM 128 MB
Physical dimensions (W x D) 366.7 x 340 mm (14.4 x 13.4 in.)
Number of ports 48
Connector RJ-45
Rate 10/100/1000 Mbps
The 3C17528 module has one LED for each port on its panel.
Ta bl e 43 1000 Mbps electrical port LEDs on the 3C17528 module
LED Status Meaning
LINK/ACT ON A link is present.
OFF No link is present.
Blinking Packets are being transmitted/received on the port.
3C17530 24-port 1000BASE-X (SFP) Advanced Module 37

3C17530 24-port 1000BASE-X (SFP) Advanced Module

Specifications The 3C17530 Advanced Module provide 24 1000BASE-X (SFP) ports.

Panel and LEDs Figure 21 3C17530 module panel

This section provides specifications for the 24-port 1000BASE-X (SFP) Advanced module (3C17530).
Ta bl e 44 3C17530 module specifications
Item Specification
CPU MPC8245
Boot ROM 512 KB
SDRAM 128 MB/256 MB
Physical dimensions (W x D) 366.7 x 340 mm (14.4 x 13.4 in.)
Max power consumption 100 W
Number of ports 24
Connector SFP/LC
Rate 1.25 Gbps

Matching Cable You can select appropriate SFP optical modules for the 1000 Mbps SFP optical

3C17531 24-port 10/100/1000BASE-T Advanced Module

Specifications The 3C17531 module provides 24 10/100/1000BASE-T (RJ45) ports.

The 3C17530 module has two LEDs for each 1000 Mbps optical port on its panel.
Ta bl e 45 Port LEDs on the 3C17530 module
LED Status Meaning
LINK OFF No link is present.
Green A link is present.
ACT OFF No packets are transmitted/received on the port.
Orange blinking Packets are being transmitted/received on the port.
ports on the
3C17530 module according to your needs. For a description of SFP the
optical modules available for the SFP optical ports and their matching cable types,
Ta bl e 66 on page 46.
see
This section provides specifications for the 24-port 10/100/1000BASE-T module (3C17531).
Ta bl e 46 3C17531 module specifications
Item Specification
CPU MPC8245
38 CHAPTER 2: I/O AND APPLICATION MODULES
Table 46 3C17531 module specifications
Item Specification
Boot ROM 512 KB
SDRAM 128 MB/256 MB
Physical dimensions (W x D) 366.7 x 340 mm (14.4 x 13.4 in.)
Max power consumption 110 W
Number of ports 24
Connector RJ-45
Rate 10/100/1000 Mbps

Panel and LEDs Figure 22 3C17531 module panel

The 3C17531 module has one LED for each port on its panel.

3C17532 48-port 10/100/1000 BASE-T (RJ-45) Access Module

Specifications The 3C17532 module provides 48 10/100/1000 BASE-T auto-sensing PoE-capable

Ta bl e 47 Port LEDs on the 3C17531 module
LED Status Meaning
LINK/ACT ON No link is present.
OFF A link is present.
Blinking Packets are being transmitted/received on the port.
This section provides specifications for the 48-port 10/100/1000 BASE-T (RJ-45) Access module (3C17532).
RJ-45 ports.
Ta bl e 48 3C17532 module specifications
Item Specification
CPU MPC8245
BootROM 512 KB
SDRAM 128 MB
Physical dimensions (W x D) 366.7 x 340 mm (14.4 x 13.4 in.)
Number of ports 48
Connector RJ-45
Rate 10/100/1000 Mbps

Panel and LEDs Figure 23 3C17532 module panel

The 3C17532 module has one LED for each port on their panel.
Ta bl e 49 1000 Mbps electrical port LEDs on the 3C17532 module
LED Status Meaning
LINK/ACT ON A link is present.
OFF No link is present.
Blinking Packets are being transmitted/received on the port.
3C17533 24-port 1000BASE-X (SFP) IPv6 Module 39

3C17533 24-port 1000BASE-X (SFP) IPv6 Module

Specifications The 3C17533 IPv6 module provides 24 1000BASE-X (SFP) ports.

Panel and LEDs Figure 24 3C17533 module panel.

This section provides specifications for the 24-port 1000BASE-X (SFP) IPv6 module (3C17533).
Ta bl e 50 3C17533 module specifications
Item Specification
CPU MPC8245
Boot ROM 512 KB
SDRAM 128 MB/256 MB
Physical dimensions (W x D) 366.7 x 340 mm (14.4 x 13.4 in.)
Max power consumption 100 W
Number of ports 24
Connector SFP/LC
Rate 1.25 Gbps
The 3C17533 module has two LEDs for each 1000 Mbps optical port on its panel.
Ta bl e 51 Port LEDs on the 3C17533 module
LED Status Meaning
LINK OFF No link is present.
Green A link is present.
ACT OFF No packets are transmitted/received on the port.
Orange blinking Packets are being transmitted/received on the port.
40 CHAPTER 2: I/O AND APPLICATION MODULES

Matching Cable You can select appropriate SFP optical modules for the 1000 Mbps SFP optical

ports on the optical modules available for the SFP optical ports and their matching cable types,
Ta bl e 66 on page 46.
see
3C17533 module according to your needs. For a description of SFP the

3C17534 24-port 10/100/1000BASE-T IPv6 Module

Specifications The 3C17534 module provides 24 10/100/1000BASE-T (RJ45) ports.

Panel and LEDs The 3C17534 module has one LED for each port on its panel.

This section provides specifications for the 24-port 10/100/1000BASE-T IPv6 module (3C17534).
Ta bl e 52 3C17534 module specifications
Item Specification
CPU MPC8245
Boot ROM 512 KB
SDRAM 128 MB/256 MB
Physical dimensions (W x D) 366.7 x 340 mm (14.4 x 13.4 in.)
Max power consumption 110 W
Number of ports 24
Connector RJ-45
Rate 10/100/1000 Mbps
Figure 25 3C17534 module panel

3C17536 4-port 10GBASE-X (XFP) QUAD IPv6 Module

Specifications The 3C17536 module provides four 10GBASE-X (XFP) ports.

Ta bl e 53 Port LEDs on the 3C17534 module
LED Status Meaning
LINK/ACT ON No link is present.
OFF A link is present.
Blinking Packets are being transmitted/received on the port.
This section provides specifications for the 4-port 10GBASE-X (XFP) QUAD IPv6 module (3C17536).
Ta bl e 54 3C17536 module specifications
Item Specification
CPU MPC8245
Table 54 3C17536 module specifications
Item Specification
Boot ROM 512 KB
SDRAM 128 MB/256 MB
Physical dimensions (W x D) 366.7 x 340 mm (14.4 x 13.4 in.)
Number of ports Four
Max power consumption (with bottom plate) 160 W
Connector XFP
Rate 10 Gbps

Panel and LEDs Figure 26 3C17536 module panel

The 3C17536 module has two LEDs for each optical port on its panel.
3C17537 2-port 10GBASE-X (XFP) IPv6 Module 41

Matching Cable For details about XFP optical modules available to the XFP optical ports on the

3C17537 2-port 10GBASE-X (XFP) IPv6 Module

Specifications The 3C17537 modules provide two 10GBASE-X XFP/LC ports.

Ta bl e 55 1000 Mbps optical port LEDs on the 3C17536 module
LED Status Meaning
LINK OFF No link is present.
Green A link is present.
ACT OFF No packets are transmitted/received on the port.
Orange blinking Packets are being transmitted/received on the port.
3C17536 module and their matching cable types, see
Ta bl e 66 on page 46.
This section provides specifications for the 2-port 10GBASE-X (XFP) IPv6 module (3C17537).
Ta bl e 56 3C17537 module specifications
Item Specification
CPU MPC8245
Boot ROM 512 KB
SDRAM 128 MB/256MB
Physical dimensions (W x D) 366.7 x 340 mm (14.4 x 13.4 in.)
Max power consumption 87 W
Number of ports Two
Connector XFP
Rate 10 Gbps
42 CHAPTER 2: I/O AND APPLICATION MODULES

Panel and LEDs Figure 27 3C17537 module panel

The 3C17537 module has two LEDs for each optical port on its panel.
Ta bl e 57 1000 Mbps optical port LEDs on the 3C17537 module
LED Status Meaning
LINK OFF No link is present.
Green A link is present.
ACT OFF No packets are transmitted/received on the port.
Orange blinking Packets are being transmitted/received on the port.

Matching Cable See Table 66 on page 46 for the XFP optical modules available for the 10 Gbps XFP

optical ports on the 3C17537 module and their matching cable types, which you can select as required.

3C17538 48-port 1000BASE-X (SFP) IPv6 Module

Specifications The 3C17538 module provides 48 1000BASE-X (SFP) ports.

Panel and LEDs Figure 28 3C17538 module panel

This section provides specifications for the 48-port 1000BASE-X (SFP) IPv6 module (3C17538).
Ta bl e 58 3C17538 module specifications
Item Specification
CPU MPC8245
BootROM 512 KB
SDRAM 128 MB/256 MB
Physical dimensions (W x D) 366.7 x 340 mm (14.4 x 13.4 in.)
Max power consumption 100 W
Number of ports 48
Connector SFP/LC
Rate 1000 Mbps
The 3C17538 module has one LED for each 1000 Mbps optical port on its panel.

Application Modules 43

Ta bl e 59 Port LEDs on the 3C17538 module
LED Status Meaning
LINK/ACT Solid on A link is present.
Solid off No link is present.
Blinking The port is transmitting or
receiving data.

Matching Cable You can select appropriate SFP optical modules for the 1000 Mbps SFP/LC optical

ports on the 3C17538 module accordingly to your needs. See
Ta bl e 66 on page 46
for the available SFP optical modules and their matching cable types.
Application Modules Each Application Module is specially designed for high-speed processing of a
certain network service and shares some features with the I/O Modules.
Currently, the following application module are available to the Switch 8800 Family:

3C17542: Network Monitoring Application Module

3C17542 Network
Monitoring Application
Module
3C17546: Firewall Application Module
3C1754766: Network Monitoring Application Module
3C17548: VPLS Application Module
Technical specifications
The 3C17542 Network Monitoring Application Module provides no I/O ports.
Ta bl e 60 Technical specifications for the 3C17542
Item Specifications
CPU MPC755
Boot ROM 512 KB
SDRAM 256 MB
Physical dimensions (W x D) 366.7 x 340 mm (14.4 x 13.4 in.)
Front panel
Figure 29 Front panel of the 3C17542
44 CHAPTER 2: I/O AND APPLICATION MODULES
3C17546 Firewall
Application Module
Technical specifications
The 3C17546 Firewall Application Module provides eight Gigabit SFP/LC optical ports.
Ta bl e 61 Technical specifications for the 3C17546
Item Specifications
CPU BCM1250
Boot ROM 512 KB
SDRAM 1 Gbps
Physical dimensions (W x D) 366.7 x 340 mm (14.4 x 13.4 in.)
Front panel
Figure 30 Front panel of the 3C17546
The 3C17546 provides eight 1000Base-X ports, one Console port, one AUX port, three 10/100Base-TX ports and four status LEDs (ATTACK, ACT, ALM and RUN) from left to right on the front panel.
3CR1754766 IPsec
Module
Ta bl e 62 Status LEDs on the 3C17546
LED Color Status Meaning
ATTACK Red OFF The module is not attacked.
ON The module is attacked.
ACT Green OFF The module is in standby mode.
Blinking The module is in active mode.
ALM Red OFF There is no link alarm.
ON There is a link alarm.
RUN Green OFF The module is faulty.
Blinking The module operates normally.
Available cables
Ta bl e 66 on page 46 lists the available SFP modules and cable types for the 1000BASE-X SFP ports.
Technical specifications
The 3CR1754766 IPsec Module provides eight Gigabit SFP optical ports.
Ta bl e 63 Technical specifications for the 3CR1754766
Item Specifications
CPU BCM1250
Boot ROM 512 KB
Application Modules 45
Table 63 Technical specifications for the 3CR1754766
Item Specifications
SDRAM 512 MB
Physical dimensions (W x D) 366.7 x 340 mm (14.4 x 13.4 in.)
Front panel
Figure 31 Front panel of the 3CR1754766
The 3CR1754766 provides eight 1000Base-X ports, one Console port, one AUX port, three 10/100Base-TX ports and four status LEDs (ATTACK, ACT, ALM and RUN) from left to right on the front panel.
Ta bl e 64 Status LEDs on the 3CR1754766
3C17548 VPLS
Application Module
LED Color Status Meaning
ATTACK Red OFF The module is not attacked.
ON The module is attacked.
ACT Green OFF The module is in standby mode.
Blinking The module is in active mode.
ALM Red OFF There is no link alarm.
ON There is a link alarm.
RUN Green OFF The module is faulty.
Blinking The module operates normally.
Available cables
Ta bl e 66 on page 46 lists the available SFP modules and cable types for the 1000BASE-X SFP ports.
Technical specifications
The 3C17548 Virtual Private LAN Service (VPLS) Application Module provides no I/O ports.
Ta bl e 65 Technical specifications for the 3C17548
Item Specifications
CPU MPC755
Boot ROM 512 KB
SDRAM 512 MB
Physical dimensions (W x D) 366.7 x 340 mm (14.4 x 13.4 in.)
46 CHAPTER 2: I/O AND APPLICATION MODULES
Front panel
Figure 32 Front panel of the 3C17548

Transceivers Ta bl e 66 documents the 3Com Switch 8800 Family transceivers.

Ta bl e 66 Transceiver Specifications
Optical Power Range (dBm)
Model 3Com Transceiver Name
XENPAKs
3Com 10GBASE-LR XENPAK
3Com 10GBASE-SR XENPAK
3Com 10GBASE-ER XENPAK
Ordering Number
3CXENPAK92 SMF 9 2 m – 10 km
3CXENPAK94 MMF 50 2,000 2 m - 300 m
3CXENPAK96 SMF 9 2 m – 40 km
Cable Type
Core Size (microns)
Bandwidth
(MHz - Km)
Transmission Range
(6.6 ft – 6 mi)
(3.2 ft - 990 ft)
(6.6 ft – 25 mi)
Wavelength
(nm) Output Input Connector
1,300 -8.2 to 0.5 -14.4 to
850 -7.3 to
1,550 -4.7 to 4 -15.8 to -1 SC
-1.3
0.5
-11.1 to
-1.0
SC
LC
XFPs
3Com 10GBASE-LR XFP 3CXFP92 SMF 9 2 m – 10 km
3Com 10GBASE-SR XFP 3CXFP94 MMF 62.5 160 0.5 – 26 m
MMF 62.5 200 0.5 – 33 m
MMF 50 400 0.5 – 66 m
MMF 50 500 0.5 – 100 m
MMF 50 2,000 0.5 – 300 m
3Com 10GBASE-ER XFP 3CXFP96 SMF 9 2 m – 40 km
(6.6 ft – 6 mi)
(1.7 – 85 ft)
(1.7 – 108 ft)
(1.7 – 217 ft)
(1.7 – 328 ft)
(1.7 – 984 ft)
(6.6 ft – 25 mi)
1,300 -8.2 to 0.5 -14.4 to
850
1,550 -4.7 to 4 -15.8 to -1 LC
-4.0 to
-1.1
0.5
-9.9 to -1.0 LC
LC
1000 Mbps SFPs
3Com 1000BASE-SX SFP
3Com 1000BASE-LX SFP
3Com 1000BASE-LH70 SFP
3Com 1000BASE-T SFP 3CSFP93 CAT5 100 m (328 ft) RJ-45
3CSFP91 MMF 62.5 160 2 – 220 m
MMF 62.5 200 2 – 275 m
MMF 50 400 2 – 500 m
MMF 50 500 2 – 550 m
3CSFP92 MMF 62.5 500 2 – 550 m
MMF 50 400 2 – 550 m
MMF 50 500 2 – 550 m
SMF 9 2 m – 10 km
3CSFP97 SMF 9 2 m – 70 km
(6.6 – 721 ft)
(6.6 – 902 ft)
(6.6 – 1,640 ft)
(6.6 – 1,804 ft)
(6.6 – 1,804 ft)
(6.6 – 1,804 ft)
(6.6 – 1,804 ft)
(6.6 ft – 6 mi)
(6.6 ft – 43 mi) ft
850 -9.5 to 0 -17 to 0 LC
1,300 -9.5 to -3 -20 to -3 LC
1,550 0 to 3 -24 to -3 LC
Switch 8800 Port Densities 47

Switch 8800 Port Densities

Ta bl e 67 describes the modules that are available for the Switch 8800, their maximum port densities, and whether or not the module supports MPLS or IPv6.
Ta bl e 67 Switch 8800 Available Modules
Max Port
SKU Description
3C17511 1-port 10GBASE-X (XENPAK) 12 No No 1
3C17512 2-port 10GBASE-X (XFP) 24 No No 2
3C17513 12-port 1000BASE-X (SFP) 144 No No 1
3C17514 24-port 1000BASE-X (SFP) 288 No No 2
3C17516 24-port 10/100/1000BASE-T (RJ-45) 288 No No 2
3C17525 1-port 10GBASE-X (XENPAK) Advanced 12 Yes No 1
3C17526 4-port 10GBASE-X (XFP) 48 No No 2
3C17527 2-port 10GBASE-X (XFP) Advanced 24 Yes No 2
3C17528 48-port 10/100/1000 BASE-T (RJ-45) 576 No Yes** 1
3C17530 24-port 1000BASE-X (SFP) Advanced 288 Yes No 2
3C17531 24-port 10/100/1000BASE-T (RJ45) Advanced 288 Yes No 2
3C17532 48-port 10/100/1000BASE-T (RJ45) Access 576 No Yes** 1
3C17533 24-port 1000BASE-X (SFP) IPv6 Module 288 No Yes** 2
3C17534 24-port 10/100/1000BASE-T (RJ-45) IPv6 Module 288 No Yes** 2
3C17536 4-port 10GBASE-X (XFP) QUAD IPv6 48 No Yes** 4
3C17537 2-port 10GBASE-X (XFP) IPv6 24 No Yes 2
3C17538 48-port 1000BASE-X (SFP) IPv6 576 No Yes** 1
3C17542 Network Monitoring Module No No 1
3C17546 Firewall Module 8 No No*** 1
3CR1754766 IPsec Module 8 No No*** 1
3C17548 Virtual Private LAN Service (VPLS) No No 1
Density*
MPLS IPv6
Fabric Adapters
*Maximum port densities stated for largest chassis model, the Switch 8814 (14 slots)
**IPv6 capable hardware module; advanced software upgrade required for IPv6 routing.
*** The Firewall, IPsec, and VPLS Modules do not support IPv6 in the first IPv6 release.
48 CHAPTER 2: I/O AND APPLICATION MODULES
3

INSTALLATION PREPARATION

Safety Recommendations

General Safety
Recommendations
Safety
Recommendations
against Electricity
To avoid possible bodily injury and device impairment, please read the following safety recommendations carefully before installing the Switch 8800 Family. The recommendations do not cover every possible hazardous condition.
The Switch 8800 Family use redundant PSUs. Turn off all PSUs and remove all
the power cords before opening the chassis.
Keep the chassis clean and dust-free.
Keep the chassis and installation tools away from walk areas.
Look carefully for possible hazards in your work area, such as ungrounded
power extension cables, missing safety grounds, and moist floors.
Locate the emergency power-off switch in the room before installation. Shut
the power off at once in case accident occurs.
Unplug all the power cords and external cables before moving the chassis.
Do not maintain the equipment alone when it has been powered.
Never assume but check each time that power has been disconnected from a
circuit.
Do not place the switch on a moist area and avoid liquid flowing into the
switch.
Safety
Recommendations in
Moving the Switch 8800
Family
c
The Switch 8800 Family are rather big and heavy, so follow the recommendations below when moving it.
Remove all the external cables (including power cords) before moving the
chassis.
Do not move the switch alone. Work with another person.
Move the switch slowly and stably. Never move suddenly or twist your body.
Move the switch at stable and consistent paces with your peer. Keep balance of
your body.
CAUTION: You can only hold the handles at both sides of the chassis when moving the switch, but not the plastic panel of the chassis, the handle of the fan frame, the handle of the PSUs or the air vents of chassis.
As these parts are not designed for bearing the weight of the entire chassis, any attempt trying to carry the switch with these parts may impair the switch and even injure yourself.
50 CHAPTER 3: INSTALLATION PREPARATION
Wearing an
ESD-Preventive Wrist
Strap
c
To prevent the electronic components from being damaged by the electrostatic discharge (ESD), take ESD measures for the area where the switch is located and note the issues below:
Always wear an ESD-preventive wrist strap when installing the parts, especially
the electric printed circuit boards.
Hold the circuit board by the edge. Do not touch the components or the
electric printed circuit.
Take the following steps to use the ESD-preventive wrist strap.
Step 1: Wear the wrist strap on your wrist.
Step 2: Lock the wrist strap tight around your wrist to keep good contact with the skin.
Step 3: Insert it into the hole peculiar to ESD-preventive wrist strap in the chassis or attach it to the grounding screw of the chassis the alligator clips.
Step 4: Make sure that the ESD-preventive wrist strap is well grounded.
CAUTION: For the sake of safety, check the resistance of the ESD-preventive wrist strap. The resistance reading should be in the range of 1 to 10 Mohm between human body and the ground.
Safety
Recommendations
against Laser
c

Examining Installation Site

Temperature/Humidity
Requirements
Some I/O modules of the Switch 8800 Family have optical interfaces. In operating status, it is dangerous to stare into the open optical interface because the laser being transmitted through the optical fiber produces a small beam of light which has very high power density and is invisible to human eyes; when a beam of light enters the eye, retina may be burned.
CAUTION: The laser inside the optical fiber may hurt your eyes.
The Switch 8800 Family can only be used indoors. To ensure that the switch works normally and to prolong its service lifetime, the following requirements should be met in terms of installation environment.
To ensure the normal operation and service lifetime of a switch, proper temperature and humidity should be maintained in the equipment room. Long-lasting high humidity in the equipment room is prone to poor insulation or even leakage of the insulating material. Sometimes, the mechanical performance deterioration, the rustiness and corrosion of some metal parts are also more likely to occur. If the relative humidity is too low, the captive screws may become loose due to the insulation washer contraction. Meanwhile, the electrostatic is likely to be produced in the dry environment, which will jeopardize the CMOS circuit of the switch. The higher the temperature, the greater the damage it will do to the switch. Long-lasting high temperature will speed up the aging process of the insulating materials, greatly lower the reliability of the switch, and therefore affect its service life seriously.
Examining Installation Site 51

Cleanness Requirements Dust is a hazard to the operating safety of the switch. The indoor dust

accumulated on the chassis can cause electrostatic absorption, which may result in the poor contact of the connector or metal contact point. This happens more frequently when indoor relative humidity is low, which will not only shorten the service life of the switch, but also cause communication failure.
The required specifications on dust content and particle diameter in an equipment room are shown in the following table.
Ta bl e 68 Limitation on dust content in equipment room
Mechanical active material Unit Content
Dust particle particles/m
Note: Dust particle diameter ‚ 5µm
3
3 x 10
(No visible dust on desk in three days)
4
Besides the dust specifications, the equipment room of the switch should also meet the rigorous requirements for the content of salt, acid and sulfide in the air. These harmful gases could accelerate the metal erosion and the aging process of some parts. Incursion of harmful gases, such as SO
, H2S, NO2, NH3, and Cl2,
2
should be prevented. The specific limitation values of these harmful gases are given in the following table.
Anti-Static
Requirements
Ta bl e 69 Harmful gas limits in an equipment room
Gas Average (mg/m3) Max. (mg/m3)
SO2 0.3 1.0
H2S 0.1 0.5
NO2 0.004 0.15
NH3 1.0 3
Cl2 0.1 0.3
Any possible interference sources, no matter outside or inside the system, affect the switch in use in a way of capacitive coupling, inductive coupling, electromagnetic radiation, common impedance (including the grounding system) coupling or conducting line (power line, signaling line and transmission line etc.). To prevent the interference, you should:
Take effective measures against electrical net interference for power supply
system.
Separate the working ground of the switch from the grounding device of the
power supply equipment or lightning-protection grounding device as far as possible.
Keep the switch far away from the radio launcher, radar launcher, and
high-frequency devices working in the high current.
Grounding
Requirements
Adopt electromagnetic shielding if necessary.
A good grounding system is not only the basis essential to the stable and reliable switch operation, but also an important guarantee of lightning protection, anti-interference and ESD-prevention. The user must provide good grounding system for the switch.
52 CHAPTER 3: INSTALLATION PREPARATION

Power Supply Requirements

The Switch 8800 Family adopts redundant PSUs for AC PSU:
Rated voltage: 100 VAC to 240 VAC, 50 Hz or 60 Hz
Maximum tolerance: 90 VAC to 264 VAC, 50 Hz or 60 Hz
Maximum power output: 1200 W (Switch 8807)/2000 W (Switch 8810/Switch
8814)

Space Requirements For the sake of adequate ventilation and easy equipment maintenance, you are

recommended to keep one meter of clearance between the rear/front of the switch cabinet and the wall surface or other devices. If the optional cabinet is desired, the clear height of the equipment room must be more than 3 meters inclusive.
Cabinet-Mounting
Requirements
Before cabinet-mounting the switch, make sure that the cabinet meets the following requirements:
Better mount the switch in an open cabinet. However, if you want to mount it
in a closed cabinet, make sure of the availability of a good ventilation system.
Make sure that the cabinet stands steadily enough to support the weight of the
switch and the accessories.
Make sure that the switch fits the cabinet size. Leave some clearance beside
the left and right panels of the switch for chassis ventilation.

Installation Tools

n
Ta bl e 70 Required installation tools
Long tape, ruler (1 meter in length), marking pen, powder marker, pencil
One percussion drill, several drill bits, one vacuum cleaner
Flat-module screwdriver P4 -- 75 mm
Phillips screwdriver P1 -- 100mm, P2 -- 150mm and P3 -­250mm
Socket wrench M5
Box-end wrench M6
Double ring spanner (10-12) or open-end wrench (10-12)
Sharp-nose pliers, diagonal pliers, vices, hand-held electric drill, file, handsaw, crowbar, rubber hammer
Brush, tweezers, paper knife, hand bellows, electric iron, solder wire, fork, ladder
ESD-preventive wrist strap, cable stripper, crimping pliers, RJ-45 crimping pliers, wire punchdown tool
Multimeter, 500V Meg-ohmmeter (used for measuring the insulation resistance), error detector, optical power meter, earth resistance tester
General tools
Special tools
Meters
Measure and lineation tools
Drills
Fastening tools
Small tools
Auxiliary tools
The instruments and tools are not shipped with the Switch 8800 Family and it is up to the users to ensure their availability.
4

SWITCH INSTALLATION

The Switch 8800 Family shall be installed indoors in a fixed place.

Confirming Installation Preparation

Installation Flow Figure 33 Installation Flow

Make sure that you have read Chapter 3 Installation Preparation carefully.
All requirements mentioned in Chapter 3 Installation Preparation have been
met.
Start
Confirm preparations
Check installation site
Install cabinet
Install chassis and
other components
Connect PGND wire/power cord
Power distribution box in cabinet
Cabling rack and fan tray
Insert I/O modules or
Application modules
Connect cables to I/O modules
or Application modules
54 CHAPTER 4: SWITCH INSTALLATION

Mounting the Switch in User-Supplied Cabinet

Cabinet Configuration
Guideline
c
CAUTION:
Even if no PoE external power supply is installed, it is recommended that you
reserve the PoE power supply slot (just cover a 4 U blank filler panel) in the cabinet for later PoE expansion.
For components of 4 U or higher, such as chassis and PoE power supply, more
screws are required to secure the slide rails in the cabinet considering their weight.
You can adjust the specific height of every slot as needed. The following
guideline is just for reference.
One Switch 8807 chassis in a cabinet
The components and their height are as follows (from bottom up):
Blank filler panel (2U)
Cabling frame (2U)
External PoE power supply (or blank filler panel if no external PoE power supply
is installed) (4U)
Blank filler panel (1U)
Back cabling frame (1U)
New Switch 8807 chassis (11U)
Blank filler panel (1U)
Cabling frame (2U)
Mounting the Switch in User-Supplied Cabinet 55
Switch 8807 11U
Figure 34 One Switch 8807 chassis in a cabinet
(1) Blank filler panel (2) Cabling frame
(3) Backward cabling frame (4) Reserved for external PoE power supply
Guideline: The space marked in Figure 34 must be reserved, and the remaining is at your disposal.
Two Switch 8807 chassis in a cabinet
The components and their height are as follows (from bottom up):
Blank filler panel (2U)
Cabling frame (2U)
External PoE power supply (or blank filler panel if no external PoE power supply
is installed) (4U)
Blank filler panel (1U)
Back cabling frame (1U)
Switch 8807 chassis (11U)
Blank filler panel (1U)
Cabling frame (2U)
Switch 8807 chassis (11U)
56 CHAPTER 4: SWITCH INSTALLATION
Switch 8807 11U
Switch 8807 11U
Figure 35 Two Switch 8807 chassis in a cabinet
(1) Blank filler panel (2) Cabling frame
(3) Backward cabling frame (4) Reserved for external PoE power supply
Guideline: The space marked in Figure 35 must be reserved, and the remaining is at your disposal.
One Switch 8810 chassis in a cabinet
The components and their height are as follows (from bottom up):
Blank filler panel (2U)
Cabling frame (2U)
External PoE power supply (or blank filler panel if no external PoE power supply
is installed) (4U)
Blank filler panel (1U)
Back cabling frame (1U)
Switch 8810 chassis (14U)
Blank filler panel (1U)
Cabling frame (2U)
Mounting the Switch in User-Supplied Cabinet 57
Switch 8810 14U
Figure 36 One Switch 8810 chassis in a cabinet
(1) Blank filler panel (2) Cabling frame
(3) Backward cabling frame (4) Reserved for external PoE power supply
Guideline: The space marked in Figure 36 must be reserved, and the remaining is at your disposal.
One Switch 8814 chassis in a cabinet
The components and their height are as follows (from top down):
Blank filler panel (2U)
Cabling frame (2U)
External PoE power supply (or blank filler panel if no external PoE power supply
is installed) (4U)
Blank filler panel (1U)
Back cabling frame (1U)
Switch 8814 chassis (17U)
Blank filler panel (1U)
Cabling frame (2U)
58 CHAPTER 4: SWITCH INSTALLATION
Switch 8814 17U
Figure 37 One Switch 8814 chassis in a cabinet
Mounting the Switch in
(1) Blank filler panel (2) Cabling frame
(3) Backward cabling frame (4) Reserved for external PoE power supply
Guideline: The space marked in Figure 37 must be reserved, and the remaining is at your disposal.
Take the following steps to install the Switch 8800 Family in a 19-inch cabinet.
the Cabinet
Step 1: Confirm before installation
Make sure that the cabinet has been well fixed. The layout inside the cabinet
for switch installation has been well done and there is no obstruction inside or around the cabinet.
Make sure that the switch is ready for installation and has been carried to a
place convenient for further moving near the cabinet.
Step 2: Mount a shelf inside the cabinet depending on the position where you want to put the switch.
Step 3: Install the cabling rack and attach the mounting ears shipped with the switch onto the switch.
Step 4: Carry the switch at both sides with another person to the place in front of the cabinet slowly.
Step 5: Lift the switch a little higher than the cabinet shelf, put it on the shelf, and push it into the cabinet.

Connecting PGND Wire and Power Cord

Connecting PGND Wire

Connecting PGND Wire and Power Cord 59
Step 6: Align the mounting ears with the square holes in the posts of the cabinet, and fasten the screws in the holes to fix the switch in the cabinet.
c
n
n
CAUTION: For the safety of operators and equipment, the switch must be well grounded. The resistance reading between switch chassis and the ground must be less than 1 ohm.
Common grounding environment
Step 1: Remove the screw from the grounding hole in the switch chassis.
Step 2: Wear the connector of the PGND wire accompanied with the switch on the grounding screw.
Step 3: Insert the grounding screw into the grounding hole and screw it down.
Step 4: Connect the other end of the ground wire to the ground bar of the switch.
Generally, the cabinets installed in equipment rooms are equipped with ground bar. In this case, you can connect the PGND wire of the switch to the ground bar for it.
Other grounding environment
Following are some methods for grounding the switch in different grounding environments that you are likely to encounter when installing the switch at different places.
Rather than specifying the switch model or showing the actual location of the switch power input or grounding screw, the following figures are primarily intended for illustrating the switch grounding, either via grounding screw or power input, in specific grounding environments.
If a ground bar is available, attach one end of the yellow-green PGND wire of
the switch to a grounding bolt of the ground bar and fasten the captive nuts. Note that the fire main and lightning rod of a building are not suitable for grounding the switch. The PGND wire of the switch should be connected to the grounding device in the equipment room. (For the Switch 8800 Family, the grounding screw is on the rear panel. Connect it as illustrated in
Figure 38).
60 CHAPTER 4: SWITCH INSTALLATION
˄5˅
˄1˅
˄2˅
˄3˅
˄4˅
˄5˅
˄1˅
˄2˅
˄3˅
˄4˅
˄5˅
˄1˅
˄2˅
˄3˅
˄4˅
˄5˅
˄1˅
˄2˅
˄3˅
˄4˅
˄5˅
˄1˅
˄2˅
˄3˅
˄4˅
˄5˅
˄1˅
˄2˅
˄3˅
˄4˅
˄6˅
˄1˅
˄2˅
˄3˅
˄5˅
˄4˅
˄6˅
˄1˅
˄2˅
˄3˅
˄5˅
˄4˅
˄6˅
˄1˅
˄2˅
˄3˅
˄5˅
˄4˅
Figure 38 Ground the switch when ground bar is available
(1) Air filter (2) Grounding screw
(3) PGND wire (4) Ground bar of the equipment room
(5) Rear panel of the switch
If there is no ground bar but earth nearby and the grounding body is allowed
to be buried, you can simply hammer an angle iron or steel pipe no shorter than 0.5 m into the earth. In this case, the yellow-green PGND wire should be welded with the angle iron (steel pipe) and the joint should be processed against eroding. (For the Switch 8800 Family, the grounding screw is on the rear panel. Connect it as illustrated in
Figure 38).
Figure 39 Ground the switch when allowed to bury grounding body nearby
(1) Air filter (2) Grounding screw
(3) PGND wire (4) Ground bar of the equipment room
(5) Angle steel (6) Rear panel of the switch
If both ground bar and the conditions for burying the grounding body are not
available, an AC-powered Ethernet switch can be grounded using the PE wire of the AC power supply. In this case, make sure that the PE wire of the AC
Connecting PGND Wire and Power Cord 61
(1) (2)(5)
(3) (4)
(6)
(7)
(1) (2)(5)
(3) (4)
(6)
(7)
power supply has been well grounded at the power distribution room or AC power supply transformer side.
Figure 40 Ground the switch via AC PE wire
(1) Live line (2) Neutral line
(3) PE line (4) 3-core AC input cable
(5) Transformer (6) AC power input
(7) Front panel of the switch
Connecting AC Power
Cord
c
CAUTION:
For lightning protection, the AC power should be led through an external
lightning device into the switch.
Make sure the power switch on the PSU is at OFF position before connecting
the power cord.
On the front panel of AC PSU, there is a plug-retention clamp.
Take the following steps to connect the AC power cord (coming with the switch) to the Switch 8807/Switch 8810/Switch 8814:
Step 1: Turn the clamp at the left of the PSU front panel to the right.
Step 2: Insert the plug at one end of the AC power cord into the socket on the PSU.
Step 3: Turn the clamp to the left until it grips the plug.
Step 4: Insert the other end of the power cord into an external power socket.
62 CHAPTER 4: SWITCH INSTALLATION
(5)
Figure 41 Connect AC power cord to the Switch 8807
(1) Connector-retention clamp (2) Input LED
(3) Output LED (4) Fail LED
(5) Power switch
Figure 42 Connect AC power cord to the Switch 8810/Switch 8814
(1)
(2)
(3)
(4)
(5)
(1) Connector-retention clamp (2) Input LED
(3) Output LED (4) Fail LED
(5) Power switch
Connecting PGND Wire and Power Cord 63
Connecting PoE Power
Cord
n
The Switch 8807/Switch 8810/Switch 8814 uses PSE4500-A external PoE power supply, which is connected to the switch through the PoE module at the front bottom of the switch to provide power to PDs (powered devices) under the switch.
This section only focuses on the cable connection between the external PoE power supply and the Switch 8800 Family switch. For the installation of the external PoE power supply, see the manual shipped with the power supply.
Grounding PoE chassis
You must ground the PoE chassis before connecting the PoE power cord to it. Follow these steps:
Connect the 6 AWG cable of the wiring terminal (with M6 hole) to the grounding screw on the rear panel of the switch, as shown in
Connect the other end of the cable to the grounding bar or other grounding terminals.
Figure 43 Ground PoE chassis
Figure 43.
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(1) Chassis grounding screw
Connecting PoE power cable
Loosen the mounting screw of the PoE entry module with a cross screwdriver.
Insert the -48V OT terminal (blue) of the DC power cord to the NEG (-) terminal of the PoE entry module and fasten the mounting screw; insert the other end to the NEG (-) terminal of the external PoE power supply.
Insert the GND OT terminal (black) of the DC power cord to the RTN (+) terminal of the PoE entry module and fasten the mounting screw; insert the other end to the NEG (-) terminal of the external power supply.
CAUTION:
Observe the signs on devices and connect the cables correctly.
Choose right cables based on the load.
64 CHAPTER 4: SWITCH INSTALLATION
Figure 44 Front panel of external PoE Power Rack (3C17509)
(1) DC output terminal: NEG(-) (2) DC output terminal: RTN(+)
(3) AC input switch (4) AC input socket

Installing Cabling Rack For your convenience, cabling racks are shipped with the Switch 8800 Family. Take

the following steps to install the rack.
Step 1: Face the I/O module slots of the switch;
Step 2: Attach the left mounting ear (the one with an elliptical hole on one surface and a recessed hole on the other) onto the cabling rack and fix it with screws (one cabling rack for Switch 8807/Switch 8810 and two for Switch 8814);
Step 3: Install mounting ears onto the both sides of the switch.
Figure 45 The position of the cabling rack

Installing Fan Tray The fan tray is hot swappable.

Installing PoE Lightning Protection Box 65
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Installing PoE Lightning Protection Box

CAUTION: In case of bodily injuries, do not touch any naked wire, terminal or other parts of the product with hazardous voltage labels.
Step 1: Wear the ESD-preventive wrist strap, making sure that it makes good skin contact; take the fan tray out from the packing bag.
Step 2: Hold the fan tray in right direction (just check the direction of instructional words, and if you insert it upside down, the plug of the fan tray cannot touch the right socket inside the chassis), with one hand on its handle and the other hand at its bottom the ejector levers on the fan tray with both hands and pull them outward. Align the fan tray with the guides in the chassis and slide it gently into the slot until its plug touches the chassis socket.
Step 3: Fasten the mounting screws on the panel of the fan tray with a screw driver.
The above installation steps are just for replacing your fan tray, since the fan tray is delivered together with the chassis and no initial installation is required.
The 3C17510 PoE Entry Module is hot-swappable.
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CAUTION: Do not touch any exposed wires, terminals, and device parts marked as hazard to avoid hurting your body.
1 Wear an ESD-preventive wrist strap and ensure it is well grounded. Unpack the
PoE lightning protection box, which is shown in
Figure 46 PoE Entry Module
Figure 46.
2 Keep the PoE Entry Module in the right direction, that is, correct letter direction
(do not turn it upside down, or you will not be able to fully insert it into the chassis due to the limitation on the back structure of the box, nor can you fasten the chassis fixing screw), hold it with one hand at the bottom and with another hand
66 CHAPTER 4: SWITCH INSTALLATION
at the front panel, and then slide it smoothly along the guide rail to the slot, until it fits into the chassis, with its plug fully touching the socket inside the chassis. See Figure 47.
Figure 47 Install PoE lightning protection box
3 Fasten the screw on top of the PoE lightning protection box.
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Installing I/O modules The I/O modules of the Switch 8800 Family are hot-swappable.

Generally, the PoE lightning protection box is shipped with the chassis of the switch you ordered. So you need not to install the box. The above installation procedure is needed only when you are changing the fan frame.
Step 1: Wear the ESD-preventive wrist strap, making sure that you have grounded it well. Take the I/O module out of the packing bag.
Step 2: Unscrew the mounting screws holding the blank filler panel in the slot where you plan to install the I/O module, and remove the panel from the slot.
Step 3: Hold the ejector levers on the fan tray with both hands and pull them outward. Align the I/O module with the guides in the chassis and slide it gently into the slot until the positioning pin of the I/O module touches the hole in the chassis.
Step 4: Pull the ejector levers inward, locking the positioning pin into the hole.
Step 5: Fix the I/O module by fastening the mounting screws on the I/O module with a screw driver.
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Put the removed blank filler panel away for future use.
For the Switch 8800 Family, the Application Module can be installed in the I/O module slot in the same way as installing the I/O module board.
Connecting Interface
Enlarged A side Pos. 25
A
DB 25 Female
8P8C Plug
Enlarged B side
Pos.1
Pos.8
DB9 Female
Enlarged C side
Pos.1
Pos.9
C
Pos.1
B
Cables

Connecting Interface Cables 67

Connecting Console
Cable
Introduction
Console cable is an 8-core shielded cable. At one end of the cable is a crimped RJ-45 connector that is to be plugged into the console port of the switch. At the other end of the cable are a DB-9 (female) connector and a DB-25 (female) connector. You can plug either of them into the 25-pin (male) or 9-pin (male) serial port on the console terminal as needed. The following figure illustrates the console cable.
Figure 48 Console cable
Ta bl e 71 Console cable pinouts
RJ-45 Signal Direction DB-25 DB-9
1 RTS 4 7
2 DTR 20 4
3 TXD 2 3
4 CD 8 1
5 GND 7 5
6 RXD 3 2
7 DSR 6 6
8 CTS 5 8

Connecting console cable

Take the following steps to connect the console cable, when configuring the switch on the terminal.
Step 1: Plug the DB-9 or DB-25 female connector of the console cable into the serial port of the PC/terminal where the switch is to be configured.
Step 2: Connect the RJ-45 connector of the console cable to the console port of the switch.
68 CHAPTER 4: SWITCH INSTALLATION
Enlarged A side
Pos.1
Pos.25
DB25 Male
A
DB9 Male
Label
8P8C PLUG
B
Enlarged B side
Pos.1 Pos.8
Enlarged C side
Pos.9
Pos.1
C
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remove the console cable into or from the PC serial port.
When connecting the console cable, first connect the DB9/DB25 end to the PC serial port and then the RJ45 end to the console port of the switch. And removing the console cable is just in inverse order.
When removing the console cable, first remove the RJ-45 end and then the DB9/DB25 end.

Connecting AUX Cable You need an AUX cable when configuring the Switch 8800 Family with the remote

modem dial-up approach.
Introduction
AUX cable is an 8-core shielded cable. At one end of the cable is an RS-232-compliant RJ-45 connector that can be plugged into the console port of the switch. At the other end are DB-9 (male) connector and DB-25 (male) connector. You can plug either of them into the DB-9 (female) or DB-25 (female) port of the modem as needed. The following figure illustrates the AUX cable.
Figure 49 AUX cable
The PC serial port is not hot-swappable, so you are not allowed to insert or
Ta bl e 72 AUX cable pinouts
RJ-45 Signal Direction DB-25 DB-9
1 RTS 4 7
2 DTR 20 4
3 TXD 2 3
4 CD 8 1
5 GND - 7 5
6 RXD 3 2
7 DSR 6 6
Connecting Interface Cables 69
PIN #8
PIN #1
Table 72 AUX cable pinouts
RJ-45 Signal Direction DB-25 DB-9
8 CTS 5 8
Connecting AUX cable
Step 1: Plug the RJ-45 connector of the AUX cable into the AUX port of the switch.
Step 2: Plug the DB-25 (male) or DB-9 (male) connector at the other end into the serial port of the analog modem.
Connecting Category-5
Shielded Cable

Connecting Fiber

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Introduction to RJ-45 connector
Being RJ-45 connector, the 10Base-T/100Base-TX port of the Switch 8800 Family supports MDI/MDIX auto-sensing and will be connected using the category-5 shielded cable. The following figure illustrates an RJ-45 connector.
Figure 50 RJ45 connector

Connecting category-5 shielded cable

Step 1: Plug one end of the network cable into the desired Ethernet RJ-45 connector on the switch.
Step 2: Plug the other end of the cable into the RJ-45 port of the peer device.
All the megabit and gigabit optical modules available for the Switch 8800 Family are SFP modules that provide LC user ports.
Introduction to fiber connector
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When selecting a fiber network facility, make sure that the type of the
connector and the fiber match the adopted optical port.
Before connecting the fiber, make sure that the receive-end optical power does
not exceed the upper threshold of the receiving optical power. Excessive receiving optical power is very likely to burn the optical module.
Fiber connectors are indispensable passive components in an optical fiber communication system. Their application allows the removable connection between optical channels, which makes the optical system debugging and maintenance more convenient and the transit dispatching of the system more flexible. Among various fiber connectors, only LC connector will be introduced here.
LC fiber connector
70 CHAPTER 4: SWITCH INSTALLATION
Figure 51 LC connector
Connecting fiber
Step 1: Plug one end of the fiber into the SFP optical module of the Switch 8800 Family.
Step 2: Connect the other end of the fiber into the corresponding device.
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Cable Routing Recommendations

Freestanding Switch on
Tabletop
Cabinet-Mounting
Switch
CAUTION: When the optical interface has not been connected with a fiber connector or its dust-proof mesh is open, there might be some invisible radiation emitted from the optical interface. So do not look into the optical interface directly.
Cover the optical interface if there is no connector plugged in.
For only selling an integrated chassis, you do not have to care about the cabling inside or outside the cabinet. All the I/O module cables are routed from the left side of the chassis (along the cabling channel), and the chassis power cords (AC/DC power cords) are routed in the front of the chassis.
If the switch is mounted in a 19-inch standard cabinet or B68-22 cabinet, the I/O module cables are bound on the cabling rack at the left side of the chassis and are routed up or down to pass through the chassis top or the raised floor depending on the available equipment room condition (that is, the signal cables are routed into the chassis either from the cabling rack on the chassis top or from the cabling trough under the floor) of the exchange office. The power cords run along the left-front of the chassis and out of the chassis either from the top or the raised floor depending on the equipment room conditions (DC power distribution cabinet, lightning protection box, and terminal block, etc.) of the exchange office.

Cable Management

Cable Management
Requirements
Bundle and put the cables inside the cabinet in a straight and neat way. No
intertwinement or bending is allowed.
Cable Management 71
Intertwined
Bent
Intertwined
Bent
Figure 52 Cable bundling example I
The bending radius of cable body cannot be less than twice of the cable
diameter. The bending radius of the cable cannot be less than 5 times of its diameter at the place where it is led out of the connector;
Different cables (power cord, signal cable, PGND wire, etc.) should be cabled
and bundled separately rather than together in the cabinet. If they are close to each other, you can cable them in cross-shape. For parallel cabling, the space between power cord and signal cable should be no less than 30 mm (1.2 in);
The cable binding rack and cabling channel inside and outside the cabinet
should be smooth and without sharp edges or tips;
The metal cable management hole should have a smooth and fully rounded
surface or wear a insulating bush;
Use the right type of ties to bundle the cables. Do not bundle cables with
joined ties. 3Com Corporation provides the following types of ties: 100 x 2.5 mm (3.9 in x 0.1 in), 150 x 3.6 mm (5.9 x 0.1 in), 300 x 3.6 mm (11.8 x 0.1 in), 530 x 9 mm (20.9 x 0.4 in), and 580 x 13 mm (22.8 x 0.5 in);
Cut the extra parts of the ties neatly after bundling the cables, leaving no sharp
or angular tips. See the following figure:
Figure 53 Cable bundling example II
72 CHAPTER 4: SWITCH INSTALLATION
Flat
washer
Flat
washer
Spring washer
Nut
Flat
washer
Flat
washer
Spring washer
Nut
Bundle the cables wherever cable bending cannot be avoided. However, the
Figure 54 Cable bundling example III
The spare cables or excessive cable parts should be folded and bundled and
cable ties cannot be placed inside the bending area in case of the likelihood of cable core break due to excessive stress. See the following figure.
placed at a right place in the cabinet or on the cabling channel. A “right place” refers to the place where the cables will not affect the operation of the device or impair the device, or be damaged;
The power cords cannot be tied on the guides of any mobile components;
Reserve some redundancy for the cables connecting to the mobile parts, the
PGND wire of the door for example, to free the cables from possible stress. Such a mobile part should be installed in such a way that the extra cable segments will be kept from contacting the heat source, sharp points or edges. Use high temperature cables near the heat sources;
For the cable terminals fixed using screw threads, the screws or nuts should be
securely fastened and prevented from loosing. See the following figure;
Figure 55 Cable fixing example
Verifying the Installation 73
When using a hard power cord, fix it near its terminal so as to free the terminal
and the cable from stress;
Do not use tapping screws to fasten the connecting terminals;
The power cords of the same type and in the same direction should be bundled
together and kept neatly and straight;
The following table lists the requirements in the bundling with cable ties.
Ta bl e 73 Tie-binding parameters
Cable bundle diameter (mm) Space between bundles (mm)
10 80 to 150
10 to 30 150 to 200
30 200 to 300
No cable or bundle can tie a knot;
The metal parts of the crimped cold-pressed terminal blocks (such as air switch)
cannot stretch beyond the blocks.

Verifying the Installation

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CAUTION: Confirm that you have turned off the power before checking, otherwise, improper connection will hurt people or impair the components of the switch.
After installing the switch, verify the installation by the following list, ensuring all the checking results are normal.
Ta bl e 74 Installation checking list
Item Normal Abnormal (Description)
ESD-preventive wrist strap
Console cable
PGND wire
Power cord
fabric
I/O module/Application Module
Fan tray
PSU
74 CHAPTER 4: SWITCH INSTALLATION
5

DEBUGGING THE SYSTEM

Setting up Configuration Environment

Connect a terminal (a PC in Figure 56) to the switch with a console cable.
Figure 56 Networking environment for switch configuration
Switch
To the console port
To the serial port
Console cable
PC

Connecting the Cables

Setting the Terminal
Parameters
1 Insert the DB-9 (or DB-25) female connector of the Console cable into the serial
port on the PC (the Console terminal).
2 Insert the RJ-45 connector of the cable into the Console port on the switch.
Set baud rate to 9600, data bits to 8, parity check to none, stop bits to 1, flow control to none, and terminal emulation to VT100.
This section will tell you how to set the terminal parameters, taking a PC running Windows 98 Hyper Terminal as an example.
Step 1: Start PC, and run terminal emulation program (such as Terminal of Windows3.1, or Hyper Terminal of Windows 95/Windows 98/Windows 2000/Windows NT/Windows XP/Windows ME) on PC.
Step 2: Set parameters in the Hyper Terminal of Windows98.
76 CHAPTER 5: DEBUGGING THE SYSTEM
You must set the baud rate to 9600, data bits to 8, no parity check, stop bit to 1, and flow control to none, and select VT100 for terminal emulation. Specifically,
1 Click StartProgramsAccessoriesCommunicationsHyperTerminal to
access the Hyper Terminal window. The Connection Description dialog box displays.
2 Click the red phone icon in the window to set up a new connection.
3 Enter the name of the new connection in the Name field and OK. The Properties
dialog box displays.
4 Select the target serial port to be used in Connect using field, and click OK. The
Port Settings Properties dialog box display.
5 Set the connecting serial interface parameters. Set the bits per second to 9600,
data bits to 8, Parity to None, stop bits to 1, and flow control to None, then click
OK. The HyperTerminal dialog box displays.
6 Select FileProperties to access the 3Com Properties Window.
7 Click the Settings tab, select VT100 for terminal emulation, and click OK to
confirm the settings.
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Powering and Booting the Switch

Verifying Installation
before Powering the
Switch
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It is recommended that you set the function, arrow, and Ctrl keys to act as Windows keys.
You should verify the installation of the switch before powering it on, to make sure that:
The switch is stable enough.
All the boards have been correctly installed.
All the communication cables, fibers, power cords, and grounding wires are
correctly connected.
The proper power voltage is used as required by the switch.
The Console cable has been correctly connected, the PC or terminal for
configuration has been in service and all the required terminal parameters have been set.
CAUTION: Before powering on the switch, locate the position of the power switch for the equipment room where you will operate so that you can switch off the power supply promptly if needed.

Powering on the Switch Turn on the power switch of the power source providing power to the switch.

Turn on the power switch.
Verifying after Power-on
(Recommended)
To ensure the configuration works that you will make on the switch, you are recommended to check the switch after powering it on to make sure that:
The cooling system is working. In this case, you can hear the noise caused by
fan rotation and feel that there is air exhausted out.
Powering and Booting the Switch 77
All the system LEDs on the fabrics function normal.

Boot Interface The Switch 8807 is used as an example in this section.

The following is the information that will be output at the Console terminal when you power on the switch.
ZBB_TEST Starting... ****************************************** * * * 3Com Switch 8800 Family Bootrom, Version 106 * * * ****************************************** Copyright(C) 2001-2005 by 3Com CORPORATION Creation date: Jun 6 2003, 19:28:01 CPU type : MPC755 CPU L2 Cache : 1024KB CPU Clock Speed : 400MHz BUS Clock Speed : 100MHz Memory Size : 512MB
Flash file system init....done
Switch 8800 Family 3C17508 board self testing.....................
The board is steady SlotNo of this 3C17508 is 0 BootRom main system CRC check is OK 82559 register testing is OK EPLD1 testing is OK EPLD2 testing is OK 16c2552 register testing is OK
Please check LEDs......................LED testing finished
The switch Mac address is 00e0.fc00.00a1 Press Ctrl+B to enter Boot Menu... 0 Auto-booting... Booting from Flash...
Decompress Image...................................................
.......................................................OK!
Starting at 0x10000... User interface Con 0 is available Press ENTER to get started.
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The above prompt information appears when the switch completes its boot sequence. Press Enter to begin configuring the switch.
The Switch 8800 Family provide abundant command views. For more information about the configuration commands and the Command Line Interface (CLI), see 3Com Switch 8800 Family Routing Switches Operation Manual.
78 CHAPTER 5: DEBUGGING THE SYSTEM
SWITCH MONITORING AND
6
MAINTENANCE

Monitoring the Switch Although the Switch 8800 Family has undergone a comprehensive factory test

before delivery, an improper installation may cause problems. This chapter describes how to troubleshoot the Switch 8800 Family.
Troubleshooting Console
Te rm in al
If the system running properly, when you power on the switch, you will see the boot information on the console terminal. If the switch is configured incorrectly, the console terminal may display illegible output or nothing at all.
If the console does not display anything after you power on the switch, check that the:
Power system is working normally.
Fabric is working normally.
Console cable is connected to the console port on the fabric.
If you find no issues with these items, the problem is most likely one of the following:

Troubleshooting the PSU

The console cable is not connected to the right serial port. That is, the port in
use is not the one configured on the terminal.
There are console terminal parameter errors. (According to the parameter
setting requirements, you should set the baud rate to 9600, data bits to 8, parity to None, stop bits to 1, flow control to None, and select VT100 as your terminal emulation protocol.)
The console cable is not in good condition.
If the terminal displays illegible characters, it is most likely a console terminal setting error. Check that you have set the baud rate to 9600, data bits to 8, parity to None, stop bits to 1, flow control to None, and select VT100 as your terminal emulation protocol.
Ta bl e 75 LEDs on the PSU
LED Description
INPUT It stays ON if the power input is normal and the PSU switch is at the ON position.
It stays OFF if the power input has failed or if there is no power input at all.
OUTPUT It stays ON if the power output is normal, otherwise it is OFF.
FAIL It stays ON if the PSU has failed, otherwise it is OFF.
80 CHAPTER 6: SWITCH MONITORING AND MAINTENANCE
The following PSU faults may appear on the switch. Follow the instructions provided to resolve the problem.
Display Power Command Indicates the PSU is Not in Position
The Input LED (green) and Output LED (green) stay ON, but the display power command shows that the PSU is not in position (but the other PSU operates normally). This problem is likely caused by a poor connection (badly seated) between the PSU and the backplane. To correct this:
1 Switch off the power supply
2 Loosen the screws on the PSU
3 Push the PSU into the chassis a little bit
4 Tighten the screws
5 Switch on the power supply to check that the normal state is resumed
The Input LED (green) and Output LED (green) are OFF
Check that the power cords are connected correctly, the power cords are in good condition, and the power switch has been put in the ON position.
w
Troubleshooting Fan
Tray
The Fail LED (red) is ON
Check that the:
Correct power voltage is in use (90 to 264VAC, 50-60 Hz for AC PSU).
Air filter protecting the fan tray is clean. Excessive dust accumulated on the air
filter may block the fan tray from free ventilation and can lead to power supply failure.
If the problem persists, contact 3Com technical support engineers. Do not disassemble the PSU yourself.
The Switch 8800 Family provides two LEDs on the fan tray as described in Ta bl e 76.
Ta bl e 76 Fan tray LEDs
Indicator State description
RUN Green indicates that the fan tray is operating normally.
OFF indicates that the fan tray has failed.
ALM Red indicates that the fan tray has failed.
OFF indicates that the fan tray is in operating normally.
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The ALM LED on the fan tray stays ON for two to three seconds when the switch is powered on.
If the RUN LED is OFF, check that:
The fan tray has been well seated.
All the cables connecting the fan tray to the backplane are connected and are
in good condition.
Hardware Maintenance 81
The fans are working normally.
The rotation of the fans has not been blocked.
The blank filler panels have been inserted into the I/O module slots.
Troubleshooting I/O

Hardware Maintenance

Module
The Switch 8800 Family provides I/O moduleX LEDs on the fabric so that you can check the state of these I/O modules.
Ta bl e 77 I/O Module LEDs
Indicator State description
RUN ON indicates an I/O module failure.
OFF indicates that the I/O module has failed or it is not in position at all.
Blinking indicates that the I/O module is working normally.
ALM OFF indicates that there is no I/O module alarm or that the I/O
module is not in position at all.
ON indicates that there is an I/O module alarm.
2~6 (Switch 8807)
0~3, 6~9 (Switch 8810)
0~5, 8~13 (Switch 8814)
On the Switch 8807, I/O module 0 through I/O module 4 respectively correspond to slots 2 through 6.
On Switch 8810, I/O module 0 through I/O module 7 respectively correspond to slots 0 through 3 and 6 through 9.
On Switch 8814, I/O module 0 through I/O module 11 respectively correspond to Slots 0 through 5 and 8 through 13.

Replacing AC PSU

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CAUTION: The Switch 8800 Family’s PSU is hot-swappable. Refer to the document entitled “3Com Switch Family Safety and Regulatory Information,” part number 10015300, for information about how to install and set up your switch safely. Also:
The Switch 8800 Family uses multiple power systems, and you must turn off all
of them when removing the AC PSU.
The PSU of the Switch 8800 Family is heavy. Use both hands to pull it out
slowly and gently, with one holding its handle and the other holding its bottom.
If you are not installing a replacement PSU, insert a blank filler panel into the
PSU slot so that dust cannot get into the unit and to allow proper ventilation
Removing an AC PSU
To remove an AC PSU:
1 Change the power switch on the PSU from the ON position into the OFF position.
2 Pull right the clamp holding the power cord connector and unplug the power
cord.
3 Unscrew the screws on the both sides of the PSU panel with a flathead
screwdriver.
82 CHAPTER 6: SWITCH MONITORING AND MAINTENANCE
4 Hold the handle of the PSU and pull the PSU gently out of the chassis along the
guides.
Figure 57 Remove and install the AC PSU
Installing an AC PSU
1 Hold the handle of the PSU with one hand and the bottom of the PSU with
another hand, and gently slide the PSU into the chassis along the guides until it is secure in the backplane.
Replacing and Cleaning
the PCU’s Air Filter
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2 Fasten the screws at both sides of the PSU panel with a flathead screwdriver.
3 Check that the power switch on the panel is in the “OFF” position and the clamp
holding the power cord connector is pulled up.
4 Insert the AC power cord included with the switch into the socket on the PSU.
5 Pull the clamp down to hold the power cord.
This section describes how to clean and replace the Switch 8800’s AC PSU air filter.
CAUTION: We strongly recommend that you clean the air filter semimonthly to guarantee adequate ventilation.
Removing and cleaning the air filter of PSU
1 Hold the air filter by the upper and lower edges with your index finger and thumb.
2 Gently pull the air filter out of the chassis.
3 Take the black air filter mesh out.
4 Clean and dry (but do not rub) the mesh.
5 Place the dry black mesh back into position.
Hardware Maintenance 83
Figure 58 Remove the air filter of AC PSU
(1) PSU (2) Air filter (3) Air filter cover
Installing the air filter of PSU
To install the PCU’s air filter:
Replacing and Cleaning
the Chassis’s Air Filter
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1 Ensure that the black mesh is contained within the air filter cover.
Figure 59 Installing the PSU Air Filter
2 Hold the air filter cover by the upper and lower edges with your index finger and
thumb and push it inside the PSU.
CAUTION: We recommended that you clean the air filter semimonthly to guarantee adequate ventilation.
You install the Switch 8800’s air filter at the chassis’s air intake vents. If you do not clean the air filter often, the accumulated dust blocks the filter’s holes and affects the chassis’s ventilation. Use one of the following two methods to clean the filter, but do not rub the air filter when you wash it. Allow it to air dry.
84 CHAPTER 6: SWITCH MONITORING AND MAINTENANCE
Removing and Cleaning the Chassis’s Air Filter
1 Unscrew the screws at the top and bottom of the air filter with a flathead
screwdriver.
2 Hold the air filter at the left-rear by its upper and lower edges, pull part of it out of
the chassis, put one hand underneath the air filter to hold it, and pull it out slowly along the guides.
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Replacing a Module The Switch 8800’s fabric, I/O modules, and application modules are similar in

CAUTION: Because the air filter is rather long, you should hold its front end with one hand, and bear its weight by putting another hand underneath it when sliding the air filter out of the chassis.
3 Rather than taking the air filter mesh out, directly wash the air filter after removing
it from the chassis, allow it to air dry, and insert it back into the chassis.
Installing the Chassis’s Air Filter
1 Hold the front end of the air filter with one hand and put the other hand
underneath it, align it with the guides, and slide it into the chassis along the guides.
2 Fix the air filter by fastening the screws at the top and bottom of the air filter with
a flathead screwdriver.
CAUTION: As the air filter is rather long, you should hold its front end with one hand, and bear its weight by putting another hand underneath it when sliding the air filter into the chassis.
structure and you can install and remove them in the same way. This section describes the general procedures for removing and installing these modules.
The Switch 8800 Family modules are hot-swappable.
Required tools
ESD-preventive wrist strap
Screwdriver
Removing a Module
To remove a module:
1 Wear the ESD-preventive wrist strap and unscrew the screws on the module with a
flathead screwdriver.
2 Hold the ejector levers on the module with both hands and press them outward to
separate the module’s locking pin from the backplane.
3 Gently pull the module out of the slot along the guides.
Figure 60 Removing a Module

Replacing the Fan Tray

Hardware Maintenance 85
Installing a Module
1 Wear the ESD-preventive wrist strap and unscrew the mounting screws fixing the
blank filter panel in the slot where you want to install the module, and remove the blank filler panel.
2 Hold the ejector levers of the card with both hands and pull them outward, align
the card with the guides in the chassis, and slide it gently into the slot until its positioning pin touches the positioning hole in the chassis.
3 Pull the ejector levers inward to lock the positioning pin of the card into the
positioning hole in the chassis.
4 Fasten the screws to fix the card.
Figure 61 Installing a Module
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CAUTION: To avoid bodily injury, do not touch exposed wires, terminals, or the switch parts where a dangerous voltage warning label is indicated.
Required tools
ESD-preventive wrist strap
Screwdriver
Replacing the Fan Tray
To replace the fan tray:
1 Wear the ESD-preventive wrist strap.
2 Remove the screws from both sides of the fan tray.
3 Pull the fan tray out with one hand on the top and the other hand around the
handle of the fan tray to separate the fan tray positioning pin from the backplane.
CAUTION: When you replace the fan tray of an operating switch, pull the fan tray out from the chassis only after the fans stop rotating. In this case, there is still the possibility that fans are still rotating. Therefore do not put your hand into the fan tray to avoid bodily injury.
4 Gently pull the fan tray out of the slot along the guides and place fan tray into the
packing bag.
5 Hold the fan tray’s handle with one hand and its bottom with the other and pull
them outward.
6 Align the fan tray with the guides in the chassis and slide it gently into the slot
until its positioning pin touches the positioning hole in the chassis.
7 Insert screws on both sides of the fan tray.
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CAUTION: Install a new fan tray soon after removing the old one to ensure that the switch operates normally.
86 CHAPTER 6: SWITCH MONITORING AND MAINTENANCE

Upgrading the Software

Required cables Console cable (for serial interface)

This section describes how to updated the software on the Switch 8800.
One crossover and one standard network cables
Debug cable (for serial interface)
To upgrade the software:
1 Confirm that the host program is loaded before initiating the software upgrade.
2 Check the current version of the host and Boot ROM programs.
3 Back up the current host program, Boot ROM program, and configuration file (to
you PC) so that you can roll back a failed upgrade.
4 Load the host and Boot ROM program files to the switch. If the switch has two
fabrics, you can copy the host and Boot ROM program files to the standby fabric.
5 Upgrade the Boot ROM program on the fabric and I/O module (optional).
6 If the switch has two fabrics, specify the load programs for the active and standby
fabrics.
7 Reboot the switch.
8 Check that the board version is correct.
Upgrading Locally
through the Boot Menu
9 Load the software through command line interface (CLI) or the Boot menu. You
can load it through CLI using FTP or TFTP. You can load it locally from the Boot menu using:
XModem and through Console port
TFTP and through Ethernet port
FTP and through Ethernet port
Each method is described below.
After powering on the switch, run the Boot ROM program. The terminal displays the following information:
ZBB_TEST Starting... ************************************************* * * * 3Com Switch 8800 Family Bootrom, Version 109 * * * ************************************************* Copyright(C) 2001-2005 by 3Com CORPORATION Creation date: Dec 9 2003, 16:19:42 CPU type : MPC755 CPU L2 Cache : 1024KB CPU Clock Speed : 400MHz BUS Clock Speed : 100MHz Memory Size : 512MB
Flash file system init....done
Board type: Switch 8800 Family 3C17539
Upgrading the Software 87
Board self testing...........................
The board is steady SlotNo of this board is 6 The MCX is exist BootRom main system CRC check is OK 82559 register testing is OK EPLD1 testing is OK EPLD2 testing is OK 16c2552 register testing is OK
Please check LEDs......................LED testing finished
The switch Mac address is 00e0.fc00.1111 Press Ctrl+B to enter Boot Menu... 5 Password :
1 Press <Ctrl+B> as prompted to display the system Password : prompt.
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appearance of the “Press Ctrl-B to enter Boot menu...” prompt. Otherwise, the program decompression process begins. To access the Boot menu after the switch enters the program decompression process, you need to restart the switch.
2 Enter the Boot ROM password (the switch’s default is no password). The Boot
menu displays as follows:
CAUTION: Make sure you have Boot ROM password.
To enter the Boot menu, you must press <Ctrl+B> within five seconds after the
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MAIN MENU
1. Boot with default mode
2. Boot from Flash
3. Boot from HardDisk
4. Enter serial submenu
5. Enter ethernet submenu
6. Modify Flash description area
7. Modify bootrom password
0. Reboot Enter your choice(0-7):
3 Ensure that the upgraded host program is compatible with the existing I/O
module’s Boot ROM program. Otherwise, you must upgrade it during a host program upgrade.
4 When loading the host program through the Boot menu, configure the serial
interface’s attributes as shown in
Figure 62. Otherwise, the Hyper Terminal does
not respond.
88 CHAPTER 6: SWITCH MONITORING AND MAINTENANCE
Figure 62 Hyper Terminal serial interface attribute settings
Upgrading software
through console port
(XModem)
XModem is a file transfer protocol used for its simplicity and performance. It transmits files through serial interfaces, supporting 128 bytes and 1Kbytes in data units, checksum and CRC checking modes, and multiple transmissions attempts (usually 10 attempts) when packet errors are found.
XModem completes the transmission by the receiving program (receiver) and the sending program (sender). In XModem, the transmission begins by sending negotiation characters from the receiver for the purpose of check mode negotiation. After passing the negotiation, the sender is allowed to send the first data packet. Upon receiving the complete packet, the receiver checks the packet using the agreed upon check mode and sends an ACK if the packet has passed the check and a NAK if it did not. After receiving the ACK, the sender sends the next packet; if it receives a NAK, the sender retransmits the previously sent packet.
To run the Xmodem application:
1 In the Boot menu, type 4, press Enter, and the system accesses the serial interface
submenu as follows:
SERIAL SUBMENU
1. Download file to SDRAM through serial interface and boot
2. Download file to Flash through serial interface
3. Download file to HardDisk through serial interface
4. Modify serial interface boot parameter
0. Return to main menu Enter your choice(0-4):4
Upgrading the Software 89
2 Ty pe 4 in the serial interface submenu and press Enter to set the serial interface
download parameters from the following menu:
1: 9600(default) 2: 19200 3: 38400 4: 57600 5: 115200 please select an appropriate baudrate: Enter your choice(1-5): 5
3 Select the download speed as needed. For example, enter 5 to select the
download speed of 115200 bps, then press Enter. The system displays the following information:
BaudRate is 115200 bps. Please change the terminal’s speed to 115200 bps
4 Change the baud rate on the Console terminal to match your specification,
disconnect the terminal, connect it again, then press Enter. The terminal displays the serial interface submenu again:
SERIAL SUBMENU
1. Download file to SDRAM through serial interface and boot
2. Download file to Flash through serial interface
3. Download file to HardDisk through serial interface
4. Modify serial interface boot parameter
0. Return to main menu Enter your choice(0-4):2
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After changing the baud rate, you must close the terminal emulation program
and start it again at least once in order to validate the new baud rate.
In Windows 98, you can disconnect and reconnect the terminal after changing
the baud rate. In Windows 2000, you must disconnect the terminal before setting the baud rate and reconnect the terminal after it is complete.
5 Choose where you wish to store the downloaded file. For example, enter 2 to
download the file into the switch’s Flash memory then, press Enter. The system displays the following information as it is downloading the file:
Please Select File . XMODEM downloading ...CCC
6 Select [Transfer/Send File] in the terminal window. The Send File dialog box
appears as shown in
Figure 62.
7 Click Browse, and select the application, and change the protocol to XModem.
90 CHAPTER 6: SWITCH MONITORING AND MAINTENANCE
Figure 63 Send File dialog box
8 Click Send. The Xmodem dialog box displays.
9 After downloading the program successfully, the system begins to write the data
into the Flash memory. When the download is finished, the serial interface displays the following submenu again.
XMODEM downloading ...CCC download successfully! flash:/ s8500.app already exist, delete it?(Y/N):y Deleting file------------------------------------------------------
---------------------------------------------------------------Done Free flash Space : 15862784 bytes Writing flash------------------------------------------------------
-------------------------------------------------------Done SERIAL SUBMENU
1. Download file to SDRAM through serial interface and boot
2. Download file to Flash through serial interface
3. Download file to HardDisk through serial interface
4. Modify serial interface boot parameter
0. Return to main menu Enter your choice(0-4):
Upgrading the Software
Using TFTP
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Trivial File Transfer Protocol (TFTP) transmissions are initiated by the client. When downloading a file, the client sends a read request packet to the TFTP server, receives the data packets from the server, and sends the ACK to the server. When uploading a file, the client sends a write request packet to the TFTP server, then sends the data packets to the server, and receives the ACK from the server. The TFTP transmission files have two forms; binary for program transmission and ASCII for text transmission.
To upgrade the software using TFTP perform the following steps.
This procedure uses a Switch 8814 work as the TFTP client.
1 Connect the switch to a PC where the file is located using the
management/upgrade Ethernet port. (You need the IP address of the PC. At the same time, connect the switch to an external PC (that can be the same one that contains the file) using the console port.
2 Run the TFTP server program on the PC connected to the management/upgrade
Ethernet port and specify the path for upgrading the application files.
3 Run the terminal emulation program on the PC connected to the console port,
and boot the switch to access the Boot menu.
Upgrading the Software 91
4 Enter 5 at Boot menu prompt and press Enter. The system displays the download
application program menu:
ETHERNET SUBMENU
1. Download file to SDRAM through ethernet interface and boot
2. Download file to Flash through ethernet interface
3. Download file to HardDisk through ethernet interface
4. Modify ethernet interface boot parameter
0. Return to main menu Be sure to select 4 to modify boot parameter before downloading! Enter your choice(0-4): 4
5 Enter 4 to select TFTP for upgrading the software and press Enter to set the
related TFTP parameters:
Note: Two protocols for download, tftp & ftp. You can modify the flags following the menu. tftp--0x80, ftp--0x0.
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TFTP and to 0x0 if you are using FTP.
’.’ = clear field; ’-’ = go to previous field; ^D = quit boot device :fei0 processor number : host name : 8500 , file name : 8500.app inet on ethernet (e) : 1.1.1.1 inet on backplane (b): host inet (h) : 1.1.1.2 gateway inet (g) : user (u) : ftp password (pw) (blank = use rsh): flags (f) :0x80 target name (tn) : startup script (s) : other (o) : Write flash...done!
6 After you provide the required information, the system accesses the Ethernet
interface submenu appears again:
ETHERNET SUBMENU
1. Download file to SDRAM through ethernet interface and boot
2. Download file to Flash through ethernet interface
3. Download file to HardDisk through ethernet interface
4. Modify ethernet interface boot parameter
0. Return to main menu Enter your choice(0-4): 2
The message prompts you to set the flags to 0x80 when you download files using
7 Specify where you wish to download the file (2 if you which to download the file
to Flash), press Enter. Upon successful completion, the system display the following information:
Attached TCP/IP interface to fei0. Attaching network interface lo0... done. boot device : fei0 unit number : 0 processor number : 0 host name : 8500 file name : 8500.app
92 CHAPTER 6: SWITCH MONITORING AND MAINTENANCE
inet on ethernet (e) : 1.1.1.1 host inet (h) : 1.1.1.2 flags (f) : 0x80
Prepare for loading....OK
Loading......done
flash:/s8500.app already exist, delete it?(Y/N):y Deleting file------------------------------------------------------
-------------------------------------------------Done Free flash Space : 15862784 bytes Writing Flash------------------------------------------------------
--------------------------------------------------------------------
--------------------------------------------------Done
8 The system accesses the Ethernet interface submenu again as shown below.
ETHERNET SUBMENU
1. Download file to SDRAM through ethernet interface and boot
2. Download file to Flash through ethernet interface
3. Download file to HardDisk through ethernet interface
4. Modify ethernet interface boot parameter
0. Return to main menu Enter your choice(0-4):
Upgrading software
Using (FTP)
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The Switch 8800 Family applications can also be updated through the Ethernet port using FTP.
This procedure uses a Switch 8814 work as the FTP client.
1 Connect the switch to the PC containing the file using the management/upgrade
Ethernet port. (You need the IP address of the PC.) Connect the switch to an external PC (that can be the same one that contains the file) through the console port.
2 Run the FTP server on the PC connected to the management/upgrade Ethernet
port. Specify the path to the upgrade file and set the login username and password.
3 Run the terminal emulation program on the PC connected to the Console port,
and boot the Switch to access the Boot menu.
4 See the corresponding steps (4 through 8) in the upgrading procedure using TFTP
above.
If you want to download files using FTP, please set the flags to 0x0 when setting the Ethernet interface parameters.
5 After downloading the host program through the Boot menu, you must specify it
as the next boot program. In the following example, the host program is Switch 8800 Family-Comware 310-R1212.app.
MAIN MENU
1. Boot with default mode
2. Boot from Flash
3. Boot from CF card
4. Enter serial submenu
5. Enter ethernet submenu
6. Modify Flash description area
7. Modify bootrom password
Upgrading the Software 93
0. Reboot Enter your choice(0-7): Enter your choice(0-7): 6 Please input ’0’ or ’1’ (’0’:Boot from Flash, ’1’:Boot from CF card) BootDev = 0 FlashFileName = Switch 8800 Family-Comware 310-R1212.app
Upgrading the Software
Using the CLI
If your terminal is connected to the switch over a network, you can load the Boot ROM and host programs remotely through the CLI using FTP. or TFTP
Using FTP
1 Run the FTP server on a local PC, provided you have configured username and
password and have set the correct file directory. Specify the PC’s IP address (for example, 10.10.110.1 in the example below).
2 Log on to the switch using Telnet or through the Console port to send host
program to the switch using FTP.
3 Using the Get command, download the main boot file (SWITCH002.app in the
example below), the active host program (SWITCH001.app in the example below), and the Boot ROM program (SWITCHbtm.btm in the example below.
<3Com> 10.19.110.1 Trying ... Press CTRL+K to abort Connected. 220 WFTPD 2.0 service (by Texas Imperial Software) ready for new user User(none):8500 331 Give me your password, please Password: 230 Logged in successfully [ftp] get SWITCH002.app SWITCH002.app [ftp] get Switchbtm.btm Switchbtm.btm [ftp] bye
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files to the standby Fabric.
4 Specify the next boot program. If the switch has two fabrics, specify the load
programs respectively for the active and standby fabrics (the current standby fabric is in slot 7 in the example below).
a Load Boot ROM program
If the switch has two fabrics, you also can copy the host and Boot ROM program
<3Com> boot bootrom flash:/Switchbtm.btm slot 6 <3Com> boot bootrom slot7#flash:/Switchbtm.btm slot 7
b Load host program
<3Com> boot boot-loader flash:/SWITCH002.app <3Com>boot boot-loader slot7#flash:/SWITCH002.app
The URL form of the files in the standby fabric file system must start with
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“slot[No.]#flash:/”, where [No.] is the standby fabric number.
<3Com> display boot-loader The app to boot of board 6 at the next time is: flash:/SWITCH002.app The app to boot of board 6 at this time is: flash:/SWITCH002.app The app to boot of board 7 at the next time is: flash:/SWITCH002.app The app to boot of board 7 at this time is: flash:/SWITCH002.app <3Com> reboot
94 CHAPTER 6: SWITCH MONITORING AND MAINTENANCE
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Upgrading the
Application Module
Program
CAUTION:
You must reboot the switch using the reboot command to validate the host
program. If Flash memory space is not enough, you can delete some of the program files in Flash after completing the Boot ROM loading. (3Com recommends that you delete the host program that is no longer in use.) Then upload the host program to the switch using FTP.
Make sure that you have saved other the configuration before rebooting.
Do not power the switch off during the loading process.
The Boot ROM and host program loading process is now complete.
Using TFTP
Using the CLI to upgrade using TFTP is similar to using FTP. The only difference is that you use the tftp get command to download software to the switch. In this case, the switch can only be used as a TFTP client to download the software to its Flash memory from the TFTP server. Once the download is complete all remaining steps are the same.
If you have the 360G Fabric (3C17508), download the application software image files to the compact flash (CF) and then boot from the CF.
If you have the 720G Fabric (3C17539), download the application software image files directly to the Fabric’s onboard flash.
Troubleshooting the
Software Upgrade
This section describes the problems may occur during the software upgrade.
No response from the fabric serial interface
Make sure the serial interface cable is in good condition and that its attributes are set correctly.
Uploading the configuration file or host program using FTP fails
Check that the:
Configuration is correct and that the FTP server is started.
Flash has enough space for the target files.
TFTP flag is selected (TFTP is not supported).
The configuration did not save during the I/O module reboot
Before saving the configuration, you must check the operating status of the I/O module. Do not save the configuration during the I/O module reboot. Otherwise, the configuration you want to save may be lost.
I/O module program loading fails or you cannot register for a long period
Check that the I/O module type is supported on the current host program.
Check that the I/O module Boot ROM program matches the host program.
Check that the I/O modules are well seated.
Insert an I/O module to other slots to make sure it is not defective.

Password Loss 95

Check that the host program exists and that the current host program is
running.
Insufficient Flash memory
Empty the recycle bin when the I/O module starts.
Delete the unused files in the Flash.
Password Loss If the switch’s Super password or Boot ROM password, contact your local support
representative.
96 CHAPTER 6: SWITCH MONITORING AND MAINTENANCE
LIGHTNING PROTECTION OF THE
A

Installing a Lightning Arrester for the AC Power

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SWITCH
This appendix describes how to install the lightning arrester for the AC power (a socket strip with lightning protection)
CAUTION: A lightning arrester is not shipped with the switch. You must purchase it separately, if needed.
Make sure, when connecting an outdoor AC power cord directly to the switch, that you connect a lightning arrester to the AC power (a socket strip with lightning protection) before you plug the AC power cord into the switch. This helps to prevent damage in the event of a lightning strike. Install your lightening arrester according to its manufacturer’s instructions.
Figure 64 A Lightning Arrester
Grounding and polarity indicator (red) : On means that the lines are incorrectly connected ( either the ground wire is not well connected, or the live and zero lines are incorrectly connected). Check the power supply circuit.
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Power switch
Normal operation indicator (green): On means that the arrester is working. Otherwise, it means that the protection circuit has been damaged.
Power socket (compliant with the IEC standard), connected to the equipment room’s power supply through power cord
Mainboard
Multipurpose power socket connected to the device
CAUTION:
Make sure that the arrester is well grounded before using the lightning arrester
for power.
After inserting the switch’s AC power cord plug into the lightening arrester’s
socket, if the green LED is on and the red LED does not alarm, it means that the lightning arrester’s power is running and the lightning protection function is active.
protected by the arrester
Overload auto protector, which can be manually reset.
Make sure that the red LED is on. If there is a problem, determine if the
arrester’s ground wire is well grounded and the live and zero wires are
98 CHAPTER A: LIGHTNING PROTECTION OF THE SWITCH
connected in right direction. When the red LED is on, use a multimeter to examine the polarity at the arrester’s power socket. If it is same as that of the power socket in the equipment room, it means that the arrester is not well grounded. If it is adverse to that of the power socket in the equipment room, it means that the arrester’s power socket is set to the reverse polarity. In this case, you should open the arrester’s power socket and correct the polarity. After that, if the red LED still alarms, it means that the arrester is still not well grounded.

Installing a Lightning Arrester for the Network Port

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A network port lightning arrester is specifically designed for an 10/100M electrical interface (an RJ-45 connector in this case) Ethernet port.
Make sure, when connecting an outdoor AC power cord directly to the switch, that you connect a lightning arrester to the AC power (a socket strip with lightning protection) before you plug the AC power cord into the switch. This helps to prevent damage in the event of a lightning strike. Install your lightening arrester according to its manufacturer’s instructions.

Required tools

Phillips screwdriver or flat-module screwdriver
Multimeter
Tilted wire cutter

Installation procedure

1 Remove the protection paper from one side of the double-faced adhesive tape,
and stick the tape to the surface of the arrester. Remove the protection paper from the other side, and stick the arrester onto the switch’s chassis as close to the grounding screw as possible.
2 Cut the arrester’s ground wire to the length of the distance between the arrester
and the switch’s grounding screw so that you can securely tighten the ground wire to the switch’s grounding screw.
3 Use the multimeter determine if the arrester’s ground wire connects properly
chassis’s grounding screw.
4 According to the instructions provided with your network port arrester, connect
the arrester to switch using the cables (Make sure to insert the outdoor network cable into the arrester‘s IN end, and the cable that is connected to the switch into the arrester’s OUT end). Check that the arrester’s indicators display correctly.
5 Use the nylon ties to bundle the cables neatly.
Installing a Lightning Arrester for the Network Port 99
Switch
Network cable indoors
Power input
Network cable from outdoors
Lightning arrester for the network port (attached onto the chassis)
Lightning arrester ground wire
Switch grounding screw
Metal cabinet that contains the switch
Figure 65 Installation diagram of a network port’s lightning arrester

Installation precautions

To ensure that the network port’s lightning arrester does not affect performance, make sure that the lightning arrester for network port is:
Connected properly (see Step 4 in the previous section).
Well grounded. The ground wire for the arrester should be as short as possible.
Ensure that it is has proper contact with the switch’s grounding screw using the multimeter.
Installed completely. If the switch has more than one network ports to
interconnect with other devices using outdoor cables, you should install lightning arresters for all network ports for protection.
100 CHAPTER A: LIGHTNING PROTECTION OF THE SWITCH
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