Foundry Networks Switch 2402CF User Manual

Foundry EdgeIron 2402CF  
Installation Guide  
2100 Gold Street  
P.O. Box 649100  
San Jose, CA 95164-9100  
Tel 408.586.1700  
Fax 408.586.1900  
February 2003  
 
COMPLIANCES  
FCC - Class A  
This equipment generates, uses, and can radiate radio frequency energy and, if  
not installed and used in accordance with the instruction manual, may cause  
interference to radio communications. It has been tested and found to comply  
with the limits for a Class A computing device pursuant to Subpart B of Part 15 of  
FCC Rules, which are designed to provide reasonable protection against such  
interference when operated in a commercial environment. Operation of this  
equipment in a residential area is likely to cause interference, in which case the  
user, at his own expense, will be required to take whatever measures may be  
required to correct the interference. You are cautioned that changes or  
modifications not expressly approved by the party responsible for compliance  
could void your authority to operate the equipment.  
You may use unshielded twisted-pair (UTP) cable for RJ-45  
connections—Category 3 or greater for 10 Mbps connections, Category 5 for 100  
Mbps connections and Category 5 or 5e for 1000 Mbps connections. Use 50/125 or  
62.5/125 micron multimode fiber optic cable, or 9/125 micron single-mode cable,  
for SFP transceiver connections.  
Warnings: 1. Wear an anti-static wrist strap or take other suitable measures to  
prevent electrostatic discharge when handling this equipment.  
2. When connecting this switch to a power outlet, connect the field  
ground lead on the tri-pole power plug to a valid earth ground  
line to prevent electrical hazards.  
EC Conformance Declaration - Class A  
Contact Foundry Networks at:  
Foundry Networks Inc.  
2100 Gold Street  
P.O. Box 649100  
San Jose, CA 95164-9100  
This information technology equipment complies with the requirements of the  
Council Directive 89/336/EEC on the Approximation of the laws of the Member  
States relating to Electromagnetic Compatibility and 73/23/EEC for electrical  
equipment used within certain voltage limits and the Amendment Directive 93/  
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68/EEC. For the evaluation of the compliance with these Directives, the following  
standards were applied:  
RFI Emission: • Limit class A according to EN 55022:1998  
• Limit class A for harmonic current emission according to  
EN 61000-3-2/1995  
• Limitation of voltage fluctuation and flicker in low-voltage  
supply system according to EN 61000-3-3/1995  
Immunity:  
• Product family standard according to EN 55024:1998  
• Electrostatic Discharge according to EN 61000-4-2:1995  
(Contact Discharge: 4 kV, Air Discharge: 8 kV)  
• Radio-frequency electromagnetic field according to  
EN 61000-4-3:1996 (80 - 1000 MHz with 1 kHz AM 80%  
Modulation: 3 V/m)  
• Electrical fast transient/burst according to EN 61000-4-4:1995  
(AC/DC power supply: 1 kV, Data/Signal lines: 0.5 kV)  
• Surge immunity test according to EN 61000-4-5:1995  
(AC/DC Line to Line: 1 kV, AC/DC Line to Earth: 2 kV)  
• Immunity to conducted disturbances, Induced by  
radio-frequency fields: EN 61000-4-6:1996 (0.15 - 80 MHz with  
1 kHz AM 80% Modulation: 3 V/m)  
• Power frequency magnetic field immunity test according to  
EN 61000-4-8:1993 (1 A/m at frequency 50 Hz)  
• Voltage dips, short interruptions and voltage variations  
immunity test according to EN 61000-4-11:1994 (>95%  
Reduction @10 ms, 30% Reduction @500 ms, >95% Reduction  
@5000 ms)  
LVD:  
• EN 60950 (A1/1992; A2/1993; A3/1993; A4/1995; A11/1997)  
Warning: Do not plug a phone jack connector in the RJ-45 port. This may damage  
this device. Les raccordeurs ne sont pas utilisé pour le systéme téléphonique!  
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Industry Canada - Class A  
This digital apparatus does not exceed the Class A limits for radio noise emissions  
from digital apparatus as set out in the interference-causing equipment standard  
entitled “Digital Apparatus,” ICES-003 of the Department of Communications.  
Cet appareil numérique respecte les limites de bruits radioélectriques applicables  
aux appareils numériques de Classe A prescrites dans la norme sur le matériel  
brouilleur: “Appareils Numériques,” NMB-003 édictée par le ministère des  
Communications.  
Japan VCCI Class A  
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Australia AS/NZS 3548 (1995) - Class A  
ACN 066 352 010  
Contact Foundry Networks at:  
Foundry Networks Inc.  
2100 Gold Street  
P.O. Box 649100  
San Jose, CA 95164-9100  
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Safety Compliance  
Warning: Fiber Optic Port Safety  
When using a fiber optic port, never look at the  
CLASS I  
LASER DEVICE  
transmit laser while it is powered on. Also, never  
look directly at the fiber TX port and fiber cable  
ends when they are powered on.  
Avertissment: Ports pour fibres optiques - sécurité sur le plan  
optique  
Ne regardez jamais le laser tant qu’il est sous  
tension. Ne regardez jamais directement le port TX  
(Transmission) à fibres optiques et les embouts de  
DISPOSITIF LASER  
DE CLASSE I  
câbles à fibres optiques tant qu’ils sont sous tension.  
Warnhinweis: Faseroptikanschlüsse - Optische Sicherheit  
Niemals ein Übertragungslaser betrachten,  
während dieses eingeschaltet ist. Niemals direkt auf  
den Faser-TX-Anschluß und auf die  
LASERGERÄT  
DER KLASSE I  
Faserkabelenden schauen, während diese  
eingeschaltet sind.  
Underwriters Laboratories Compliance Statement  
Important! Before making connections, make sure you have the correct cord set.  
Check it (read the label on the cable) against the following:  
120 Volts  
UL Listed/CSA Certified Cord Set  
Minimum 18 AWG  
Type SVT or SJT three conductor cord  
Maximum length of 15 feet  
Parallel blade, grounding type attachment  
plug rated 15 A, 125 V  
240 Volts (Europe  
only)  
Cord Set with H05VV-F cord having three  
conductors with minimum diameter of 0.75  
mm2  
IEC-320 receptacle  
Male plug rated 10 A, 250 V  
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The unit automatically matches the connected input voltage. Therefore, no  
additional adjustments are necessary when connecting it to any input voltage  
within the range marked on the rear panel.  
Wichtige Sicherheitshinweise (Germany)  
1. Bitte lesen Sie diese Hinweise sorgfältig durch.  
2. Heben Sie diese Anleitung für den späteren Gebrauch auf.  
3. Vor jedem Reinigen ist das Gerät vom Stromnetz zu trennen. Verwenden Sie  
keine Flüssigoder Aerosolreiniger. Am besten eignet sich ein angefeuchtetes  
Tuch zur Reinigung.  
4. Die Netzanschlu ßsteckdose soll nahe dem Gerät angebracht und leicht  
zugänglich sein.  
5. Das Gerät ist vor Feuchtigkeit zu schützen.  
6. Bei der Aufstellung des Gerätes ist auf sicheren Stand zu achten. Ein Kippen  
oder Fallen könnte Beschädigungen hervorrufen.  
7. Die Belüftungsöffnungen dienen der Luftzirkulation, die das Gerät vor  
Überhitzung schützt. Sorgen Sie dafür, daß diese Öffnungen nicht abgedeckt  
werden.  
8. Beachten Sie beim Anschluß an das Stromnetz die Anschlußwerte.  
9. Verlegen Sie die Netzanschlußleitung so, daß niemand darüber fallen kann. Es  
sollte auch nichts auf der Leitung abgestellt werden.  
10. Alle Hinweise und Warnungen, die sich am Gerät befinden, sind zu beachten.  
11. Wird das Gerät über einen längeren Zeitraum nicht benutzt, sollten Sie es vom  
Stromnetz trennen. Somit wird im Falle einer Überspannung eine  
Beschädigung vermieden.  
12. Durch die Lüftungsöffnungen dürfen niemals Gegenstände oder Flüssigkeiten  
in das Gerät gelangen. Dies könnte einen Brand bzw. elektrischen Schlag  
auslösen.  
13. Öffnen sie niemals das Gerät. Das Gerät darf aus Gründen der elektrischen  
Sicherheit nur von authorisiertem Servicepersonal geöffnet werden.  
14. Wenn folgende Situationen auftreten ist das Gerät vom Stromnetz zu trennen  
und von einer qualifizierten Servicestelle zu überprüfen:  
a. Netzkabel oder Netzstecker sind beschädigt.  
b. Flüssigkeit ist in das Gerät eingedrungen.  
c. Das Gerät war Feuchtigkeit ausgesetzt.  
d. Wenn das Gerät nicht der Bedienungsanleitung entsprechend funktioniert  
oder  
Sie mit  
Hilfe dieser Anleitung keine Verbesserung erzielen.  
e. Das Gerät ist gefallen und/oder das Gehäuse ist beschädigt.  
f. Wenn das Gerät deutliche Anzeichen eines Defektes aufweist.  
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15. Zum Netzanschluß dieses Gerätes ist eine geprüfte Leitung zu verwenden.  
Für einen Nennstrom bis 6 A und einem Gerätegewicht größer 3 kg ist eine  
2
Leitung nicht leichter als H05VV-F, 3G, 0.75 mm einzusetzen.  
Der arbeitsplatzbezogene Schalldruckpegel nach DIN 45 635 Teil 1000 beträgt 70  
dB(A) oder weniger.  
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Chapter 1  
Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1  
Chapter 2  
Management Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2  
Connectivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8  
Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9  
Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9  
Chapter 3  
Network Planning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1  
Introduction to Switching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1  
Application Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2  
Connectivity Rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2  
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Chapter 4  
Installing the Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1  
Package Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-2  
Chapter 5  
Making Network  
Wiring Closet Connections . . . . . . . . . . . . . . . . . . . . . . . . .5-3  
Appendix A  
In-Band Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2  
Appendix B  
Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-1  
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1  
Twisted-Pair Cable and Pin Assignments . . . . . . . . . . . . . . . . . B-2  
10BASE-T/100BASE-TX Pin Assignments . . . . . . . . . . . B-2  
Straight-Through Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . B-4  
Crossover Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-4  
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Appendix C  
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1  
Base Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1  
Management Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-3  
Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-3  
Compliances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-4  
CE Mark . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-4  
Glossary  
Index  
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CHAPTER 1  
ABOUT THIS GUIDE  
Audience  
This guide is for system administrators with a working  
knowledge of network management.  
You should be familiar with switching and networking concepts.  
Nomenclature  
This guide uses the following typographical conventions to show  
information:  
Italichighlights the title of another publication and occasionally  
emphasizes a word or phrase.  
codeshows text that must be entered exactly as it appears in this  
guide.  
1RWHꢁ emphasizes an important fact or calls your attention to a  
dependency.  
How to Get Help  
If you need assistance, Foundry Networks is committed to  
ensuring that your investment in our products remains  
cost-effective by offering a variety of support options.  
February 2003  
© 2003 Foundry Networks, Inc.  
1-1  
 
         
ABOUT THIS GUIDE  
Foundry Networks Technical Support  
Foundry Networks technical support will ensure that the fast and  
easy access that you have come to expect from your Foundry  
Networks products will be maintained.  
Web Access  
Point your browser to the following URL:  
Navigate to Services/Technical Support.  
Click the Login button, then enter your user name and password  
to gain access to the Foundry support site.  
E-mail Access  
Technical requests can also be sent to the e-mail address:  
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Telephone Access  
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Warranty Coverage  
Contact Foundry Networks using any of the methods listed  
above for information about the standard and extended  
warranties.  
Related Publications  
Refer to the Foundry EdgeIron User Guide for instructions on how  
to configure and manage the switch.  
1-2  
© 2003 Foundry Networks, Inc.  
February 2003  
 
                     
CHAPTER 2  
ABOUT THE SWITCH  
Overview  
This switch is an ideal solution for delivering Internet access to  
individual users in multi-dwelling or multi-tenant units (MDUs/  
MTUs), such as apartment housing blocks, commercial buildings  
or hotels. This switch provides rate-limitable connections to  
individual users with secure port-to-port isolation between users  
– all with conventional Ethernet cabling and adapters. At an  
MDU/MTU site, up to 24 other switches can be cascaded from  
one switch, providing broadband Internet access for up to 24  
individual users on each switch.  
Figure 2-1. Front and Rear Panels  
System Indicators  
PWR, Diag, Stack  
Port Status Indicators (1-24)  
On Amber: 10 Mbps link  
Flashing Amber: 10 Mbps link/activity  
On Green: 100 Mbps link  
Flashing Green: 100 Mbps link/activity  
Media Slots  
Combo Gigabit  
Ethernet ports  
RJ-45/SF  
Console Port  
Use this port for console connection  
10/100 Mbps RJ-45 Ports  
Module Status Indicators (25/26)  
On Amber: 10/100 Mbps link  
Flashing Amber 10/100 Mbps link/activity  
On Green: 1000 Mbps link  
Flashing Green: 1000 Mbps link/activity  
100-240V~  
50/60Hz, 2A  
Power Socket  
February 2003  
© 2003 Foundry Networks, Inc.  
2-1  
 
     
ABOUT THE SWI TCH  
Switch Architecture  
The switch contains 24 10/100 Mbps Fast Ethernet ports on the  
front panel. Each port can provide a dedicated link directly to an  
end-user PC, or be attached to another Ethernet switch/hub at  
the end-user’s premises and used as a shared link. The switch  
completely eliminates the bottlenecks of dial-up internet access  
by offering a configurable bandwidth of up to 100 Mbps full  
duplex for each end-user connection. For all port connections, the  
switch’s 8.8 Gbps bandwidth capacity is more than enough to  
handle even the most demanding environments.  
Auto-negotiation is used to select the optimal transmission speed  
and communication mode for each connection. With  
store-and-forward switching and flow control, maximum data  
integrity is always maintained, even under heavy loading.  
This switch includes two port: 1000BASE-SX and RJ-45. These  
ports allow users the flexibility to use either fiber or copper  
media.  
The switch also supports a stacking module that can be installed  
into slot M1. The stacking module allows up to eight units to be  
linked together and managed from one unit using one IP address.  
Management Options  
This switch contains a comprehensive array of LEDs for  
“at-a-glance” monitoring of network and port status. It also  
includes a management agent that allows you to configure or  
monitor the switch using its embedded management software, or  
via SNMP applications. To manage the switch, you can make a  
direct connection to the RS-232 console port (out-of-band), or you  
can manage the switch through a network connection (in-band)  
using Telnet, the on-board Web agent, or Windows-based  
network management software.  
2-2  
© 2003 Foundry Networks, Inc.  
February 2003  
 
           
OVERVIEW  
The management agent provides a wide range of advanced  
performance-enhancing features. Port-based VLANs provide  
traffic security and efficient use of network bandwidth. QoS  
priority queueing ensures the minimum delay for moving  
real-time multimediadatathroughthe switch. Flowcontrol  
eliminates the loss of packets due to bottlenecks caused by port  
saturation. Port security is provided to filter unwanted traffic  
from the switch.  
Some of the switch’s advanced features are described below. For  
a detailed description, refer to the Foundry EdgeIron User Guide.  
VLANs  
This switch supports up to 255 VLANs. A Virtual LAN is a  
collection of network nodes that share the same collision domain  
regardless of their physical location or connection point in the  
network. By segmenting your network into VLANs, you can:  
Eliminate broadcast storms which severely degrade  
performance in a flat network.  
Simplify network management for node changes/moves by  
remotely configuring VLAN membership for any port, rather  
than having to manually change the node’s physical  
connection.  
Provide data security by restricting all traffic to the  
originating VLAN, except where a connection is explicitly  
defined via the switch’s routing service.  
This switch supports Private VLANs as an extension of the  
common VLAN. Private VLANs can be used to provide  
port-based security and isolation between ports within a VLAN.  
Private VLANs deliver per port security, requiring only one  
VLAN on every switch, not every port. This feature greatly  
February 2003  
© 2003 Foundry Networks, Inc.  
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ABOUT THE SWI TCH  
minimizes the total number of VLANs required. Private VLANs  
and normal VLANs can exist simultaneously in the same switch.  
Multicast Switching  
Specific multicast traffic can be assigned to its own VLAN to  
ensure that it does not interfere with normal network traffic and  
to guarantee real-time delivery by setting the required priority  
level for the designated VLAN. The switch uses IGMP Snooping.  
Traffic Priority  
This switch provides Quality of Service (QoS) by prioritizing  
each packet based on the required level of service, using four  
distinct categories with Weighted Round Robin queuing. It uses  
IEEE 802.1p and 802.1Q tags to prioritize incoming traffic based  
on input from the end-station application. These functions can be  
used to provide independent priorities for delay-sensitive data  
and best-effort data.  
RJ-45 Ports  
The switch base unit contains 24 10BASE-T/100BASE-TX RJ-45  
ports. All of these ports support automatic MDI/MDI-X  
operation, so you can use straight-through cables for all network  
connections to PCs or servers, or to other switches or hubs. (See  
“10BASE-T/100BASE-TX Pin Assignments” on page -2.)  
Each of these ports support IEEE 802.3x auto-negotiation, so the  
optimum transmission mode (half or full duplex), and data rate  
(10 or 100 Mbps) can be selected automatically, if this feature is  
also supported by the attached device. If a device connected to  
one of these ports does not support auto-negotiation, the correct  
speed will be sensed by the port, but the transmission mode will  
default to half duplex.  
2-4  
© 2003 Foundry Networks, Inc.  
February 2003  
 
             
DESCRIPTION OF HARDWARE  
Each port also supports auto-negotiation of flow control, so the  
switch can automatically prevent port buffers from becoming  
saturated.  
Port Status LEDs  
The base unit also includes a display panel for key system and  
port indications that simplify installation and network  
troubleshooting. The LEDs, which are located on the front panel  
for easy viewing, are shown below and described in the  
following tables.  
Figure 2-2. Port Status LEDs  
Port Status LEDs  
Condition  
LED  
Status  
Base Unit Ports  
1~24  
On/Flashing Port has established a valid 10 Mbps  
Amber  
network connection. Flashing indicates  
activity.  
(Link/  
Activity)  
On/Flashing Port has established a valid 100 Mbps  
Green  
network connection. Flashing indicates  
activity.  
Off  
There is no valid link on the port.  
February 2003  
© 2003 Foundry Networks, Inc.  
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ABOUT THE SWI TCH  
Port Status LEDs  
Condition  
LED  
Status  
Module Ports  
25, 26  
On/Flashing Port has established a valid 10/100  
Amber  
Mbps network connection. Flashing  
indicates activity.  
(Link/  
Activity)  
On/Flashing Port has established a valid 1000 Mbps  
Green  
network connection. Flashing indicates  
activity.  
Off  
There is no valid link on the port.  
Figure 2-3. System Status LEDs  
System Status LEDs  
Condition  
LED  
PWR  
Status  
On Green  
On Amber  
Off  
The unit’s internal power supply is  
operating normally.  
The unit’s internal power supply has  
failed.  
The unit has no power connected.  
2-6  
© 2003 Foundry Networks, Inc.  
February 2003  
 
 
DESCRIPTION OF HARDWARE  
System Status LEDs  
Condition  
LED  
Diag  
Status  
On Green  
The system diagnostic test has  
completed successfully.  
Flashing  
Green  
The system diagnostic test is in  
progress.  
On Amber  
The system diagnostic test has detected  
a fault.  
Link  
N/A  
This indicator is not currently  
implemented.  
Duplex  
Stack  
N/A  
This indicator is not currently  
implemented.  
Flashing  
Amber  
An initial state of stacking configuration  
upon powering on.  
Green  
This switch is acting as the master unit  
in the stack.  
Amber  
This switch is acting as a slave unit in  
the stack.  
Flashing  
Green  
When the user enters the light unit  
command in the CLI, the unit ID of each  
switch in the stack will be displayed by  
port LEDs 1 to 8.  
Power Supply Receptacle  
The power receptacle is located on the rear panel of the switch.  
The standard power receptacle is for the AC power cord.  
February 2003  
© 2003 Foundry Networks, Inc.  
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ABOUT THE SWI TCH  
Figure 2-4. Power Supply Receptacle  
100-240V~  
50/60Hz, 2A  
Features and Benefits  
Connectivity  
24 dual-speed ports for 10 or 100 Mbps Ethernet connections  
Auto-negotiation enables each RJ-45 port to automatically  
select the optimum communication mode (half or full duplex)  
for the attached device  
Independent RJ-45 ports with support for automatic MDI/  
MDI-X  
Unshielded (UTP) cable supported on all RJ-45 ports:  
Category 3, 4 or 5 for 10 Mbps connections and Category 5 for  
100 Mbps connections  
IEEE 802.3 Ethernet and 802.3u Fast Ethernet compliance  
ensures compatibility with standards-based hubs, network  
cards and switches from any vendor  
Provides stacking capability via a module with 1 Gbps  
stacking bandwidth. Up to 8 units can be stacked.  
Two 10/100/1000BASE-T auto-sensing Gigabit Ethernet  
switching ports that operate in combination with two Small  
Form Factor Pluggable (SFP) transceiver slots  
2-8  
© 2003 Foundry Networks, Inc.  
February 2003  
 
     
FEATURES AND BENEFITS  
Performance  
Transparent bridging  
Aggregate bandwidth up to 8.8 Gbps  
Switching Table with 8K MAC address entries  
Filtering and forwarding at line speed  
Desktop or rack-mountable  
Management  
“At-a-glance” LEDs for easy troubleshooting  
Management agent:  
Supports Telnet, SNMP and Web-based interface  
Manages entire switch in-band or out-of-band  
Private VLAN function providing port-based security  
and isolation between ports  
VLAN Support with up to 255 groups, port-based or with  
802.1Q VLAN tagging, and GVRP for automatic VLAN  
learning  
Quality of Service (QoS) supports four levels of priority  
and Weighted Round Robin  
Multicast Switching based on IGMP Snooping  
Port trunking supported for 2, 3 or 4-port groups  
February 2003  
© 2003 Foundry Networks, Inc.  
2-9  
 
     
ABOUT THE SWI TCH  
2-10  
© 2003 Foundry Networks, Inc.  
February 2003  
 
CHAPTER 3  
NETWORK PLANNING  
Introduction to Switching  
A network switch allows simultaneous transmission of multiple  
packets via non-crossbar switching. This means that it can  
partition a network more efficiently than bridges or routers. The  
switch has, therefore, been recognized as one of the most  
important building blocks for today’s networking technology.  
When performance bottlenecks are caused by congestion at the  
network access point (such as the network card for a  
high-volume file server), the device experiencing congestion  
(server, power user or hub) can be attached directly to a switched  
port. And, by using full-duplex mode, the bandwidth of the  
dedicated segment can be doubled to maximize throughput.  
When networks are based on repeater (hub) technology, the  
maximum distance between end stations is limited. For Ethernet,  
there may be up to four hubs between any pair of stations; for  
Fast Ethernet, the maximum is two. This is known as the hop  
count. However, a switch turns the hop count back to zero. So  
subdividing the network into smaller and more manageable  
segments, and linking them to the larger network by means of a  
switch, removes this limitation.  
A switch can be easily configured in any Ethernet or Fast  
Ethernet network to significantly boost bandwidth while using  
conventional cabling and network cards.  
February 2003  
© 2003 Foundry Networks, Inc.  
3-1  
 
         
NETWORK PLANNING  
Application Example  
This switch is specifically designed for delivering Internet access  
to individual users in multi-dwelling or multi-tenant units  
(MDUs/MTUs), such as apartment housing blocks, commercial  
buildings or hotels. Some features of this application are  
described below.  
Connectivity Rules  
When adding hubs (repeaters) to your network, please follow the  
connectivity rules listed below for Ethernet, Fast Ethernet, or  
Gigabit Ethernet. However, note that because switches break up  
the path for connected devices into separate collision domains,  
you should not include the switch or connected cabling in your  
calculations for cascade length involving other devices.  
1000 Mbps Gigabit Ethernet Collision Domain  
Maximum Fiber Optic Cable Distance for 1000BASE-SX  
Fiber Size  
Fiber Bandwidth  
160 MHz/km  
200 MHz/km  
400 MHz/km  
500 MHz/km  
Maximum Cable Length  
2-220 m (7-722 ft)  
62.5/125 micron  
2-275 m (7-902 ft)  
50/125 micron  
2-500 m (7-1641 ft)  
2-550 m (7-1805 ft)  
Maximum Fiber Optic Cable Distance for 1000BASE-LX  
Fiber Size  
Fiber Bandwidth  
Maximum Cable Length  
9/125 micron  
N/A  
2 m - 5 km (7 - 16404 ft)  
3-2  
© 2003 Foundry Networks, Inc.  
February 2003  
 
             
CONNECTIVITY RULES  
Maximum Cable Distance for 1000BASE-T  
Type  
Connector  
RJ-45  
Maximum Cable Length  
Cat. 5, 5e, or 6  
100-ohm UTP  
100 m (328 ft)  
Maximum Cable Distance for 10/100BASE  
Type  
Cable Type  
Maximum Cable  
Length  
10BASE-T  
Twisted Pair, Categories 3, 4, 5  
100 m (328 ft)  
100BASE-TX  
Category 5 100-ohm UTP or STP 100 m (328 ft)  
February 2003  
© 2003 Foundry Networks, Inc.  
3-3  
 
     
NETWORK PLANNING  
Application Notes  
1. Full-duplex operation only applies to point-to-point access  
(such as when a switch is attached to a workstation, server or  
another switch). When the switch is connected to a hub, both  
devices must operate in half-duplex mode.  
2. When a switch is connected to a hub or any kind of shared  
media, you may want to turn off back pressure flow control to  
prevent jamming packets from being propagated throughout  
the hub.  
3. As a general rule the length of fiber optic cable for a single  
switched link should not exceed:  
1000BASE-SX/LX: 550 m (1805 ft) for multimode fiber or  
5 km (16404 ft) for single-mode fiber.  
However, power budget constraints must also be considered  
when calculating the maximum cable length for your specific  
environment.  
3-4  
© 2003 Foundry Networks, Inc.  
February 2003  
 
 
CHAPTER 4  
INSTALLING THE SWITCH  
Selecting a Site  
Switch units can be mounted in a standard 19-inch equipment  
rack or on a flat surface. Be sure to follow the guidelines below  
when choosing a location.  
The site should:  
be at the center of all the devices you want to link and  
near a power outlet.  
be able to maintain its temperature within 0 to 50° C (32  
to 122 °F) and its humidity within 10% to 90%,  
non-condensing  
provide adequate space (approximately two inches) on all  
sides for proper air flow  
be accessible for installing, cabling and maintaining the  
devices  
allow the status LEDs to be clearly visible  
Make sure twisted-pair cable is always routed away from  
power lines, fluorescent lighting fixtures and other sources of  
electrical interference, such as radios, transmitters, etc.  
Make sure that a separate grounded power outlet that  
provides 100 to 240 VAC, 50 to 60 Hz, is within 2.44 m (8 feet)  
of each device and is powered from an independent circuit  
breaker. As with any equipment, using a filter or surge  
February 2003  
© 2003 Foundry Networks, Inc.  
4-1  
 
                 
INSTALLING THE SWI TCH  
suppressor is recommended.  
Equipment Checklist  
After unpacking the switch, check the contents to be sure you  
have received all the components. Then, before beginning the  
installation, be sure you have all other necessary installation  
equipment.  
Package Contents  
24-Port Fast Ethernet Switch  
Four adhesive foot pads  
Bracket Mounting Kit containing two brackets and four  
screws for attaching the brackets to the switch  
Power Cord  
RS-232 console cable  
Stacking Cable  
CD-ROM containing installation guide and user guide  
Optional Rack-Mounting Equipment  
If you plan to rack-mount the switch, be sure to have the  
following equipment available:  
Four mounting screws for each device you plan to install in a  
rack—these are not included  
A screwdriver (Phillips or flathead, depending on the type of  
screws used)  
4-2  
© 2003 Foundry Networks, Inc.  
February 2003  
 
         
MOUNTING  
Mounting  
A switch unit can be mounted in a standard 19-inch equipment  
rack or on a desktop or shelf. Mounting instructions for each type  
of site follow.  
Rack Mounting  
Before rack mounting the switch, pay particular attention to the  
following factors:  
Temperature: Since the temperature within a rack assembly  
may be higher than the ambient room temperature, check that  
the rack-environment temperature is within the specified  
operating temperature range. (See page -2.)  
Mechanical Loading: Do not place any equipment on top of a  
rack-mounted unit  
Circuit Overloading: Be sure that the supply circuit to the  
rack assembly is not overloaded.  
Grounding: Rack-mounted equipment should be properly  
grounded. Particular attention should be given to supply  
connections other than direct connections to the mains.  
To rack-mount devices:  
1. Attach the brackets to the device using the screws provided in  
the Bracket Mounting Kit.  
February 2003  
© 2003 Foundry Networks, Inc.  
4-3  
 
         
INSTALLING THE SWI TCH  
Figure 4-1. Attaching the Brackets  
100BA  
S
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le  
M
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-S  
FC  
TX  
RX  
2. Mount the device in the rack, using four rack-mounting  
screws (not provided).  
Figure 4-2. Installing the Switch in a Rack  
10  
0
B
A
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E
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in  
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o
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M
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-372  
6
-S  
F
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TX  
RX  
3. If installing a single switch only, turn to “Connecting to a  
Power Source” at the end of this chapter.  
4. If installing multiple switches, mount them in the rack, one  
below the other, in any order.  
Desktop or Shelf Mounting  
1. Attach the four adhesive feet to the bottom of the first switch.  
4-4  
© 2003 Foundry Networks, Inc.  
February 2003  
 
     
CONNECTING TO APOWER SOURCE  
Figure 4-3. Attaching the Adhesive Feet  
2. Set the device on a flat surface near an AC power source,  
making sure there are at least two inches of space on all sides  
for proper air flow.  
3. If installing a single switch only, go to “Connecting to a  
Power Source” at the end of this chapter.  
4. If installing multiple switches, attach four adhesive feet to  
each one. Place each device squarely on top of the one below,  
in any order.  
Connecting to a Power Source  
To connect a device to a power source:  
1. Insert the power cable plug directly into the receptacle  
located at the back of the device.  
February 2003  
© 2003 Foundry Networks, Inc.  
4-5  
 
   
INSTALLING THE SWI TCH  
Figure 4-4. Power Receptacle  
100-240V~  
50/60Hz, 2A  
2. Plug the other end of the cable into a grounded, 3-pin socket.  
1RWHꢁ For International use, you may need to change the AC line  
cord. You must use a line cord set that has been approved  
for the receptacle type in your country.  
3. Check the front-panel LEDs as the device is powered on to be  
sure the Power LED is lit. If not, check that the power cable is  
correctly plugged in.  
4-6  
© 2003 Foundry Networks, Inc.  
February 2003  
 
   
CHAPTER 5  
MAKING NETWORK  
CONNECTIONS  
Connecting Network Devices  
The switch may be connected to 10 or 100 Mbps network cards in  
PCs and servers, as well as to Ethernet and Fast Ethernet hubs  
and switches. It may also be connected to remote devices using  
the optional fiber optic modules.  
Twisted-Pair Devices  
Each device requires a shielded or unshielded twisted-pair (STP  
or UTP) cable with RJ-45 connectors at both ends. For  
1000BASE-T Category 5 or 5e cable is required, for 100BASE-TX  
connections, Category 5 cable is required; for 10BASE-T,  
Category 3, 4 or 5 cable can be used.  
Cabling Guidelines  
A twisted-pair connection between two ports must have a  
crossover of the transmit and receive wires to be able to function.  
This crossover can be implemented in either of the ports, or in the  
cable connecting them.  
Network card ports in PCs and servers do not contain an internal  
wiring crossover, these are known as straight-through (MDI)  
ports. Therefore, most switch and hub ports implement a built-in  
February 2003  
© 2003 Foundry Networks, Inc.  
5-1  
 
               
MAKING NETWORK CONNECTIONS  
crossover — known as fixed crossover (MDI-X) ports — so that  
they can be connected to PCs and servers using standard  
straight-through cable. Some switches and hubs also have an  
MDI port, so that they can connect to another switch’s/hub’s  
MDI-X port using straight-through cable. To connect between  
two switches/hubs that only have fixed MDI-X ports, the wiring  
crossover must be implemented in the cable — known as a  
crossover cable.  
The RJ-45 ports on the switch base unit support automatic MDI/  
MDI-X operation, which means that they automatically detect the  
wiring in the link and configure as MDI or MDI-X accordingly. So  
for these ports, you can use standard straight-through  
twisted-pair cables to connect to any other network device (PCs,  
servers, switches, hubs, or routers). However, note that  
auto-negotiation must be enabled on these ports for automatic  
wiring configuration to function properly.  
Connecting to PCs, Servers, Hubs and Switches  
&DXWLRQꢁ  
Do not plug a phone jack connector into an RJ-45 port. This  
will damage the switch. Use only twisted-pair cables with  
RJ-45 connectors that conform to FCC standards.  
1. Attach one end of a twisted-pair cable segment to the device’s  
RJ-45 connector.  
5-2  
© 2003 Foundry Networks, Inc.  
February 2003  
 
       
TWISTED-PAIR DEVICES  
Figure 5-1. Making Twisted-Pair Connections  
2. If the device is a PC card and the switch is in the wiring  
closet, attach the other end of the cable segment to a modular  
wall outlet that is connected to the wiring closet (see “Wiring  
Closet Connections” on the next page). Otherwise, attach the  
other end to an available port on the switch.  
3. Make sure each twisted pair cable does not exceed 100 meters  
(328 ft) in length.  
1RWHꢁ When connected to a shared collision domain (such as a  
hub with multiple workstations), switch ports must be set  
to half-duplex mode.  
4. As each connection is made, the green Link LED (on the  
switch) corresponding to each port will light to indicate that  
the connection is valid.  
Wiring Closet Connections  
Today, the punch-down block is an integral part of many of the  
newer equipment racks. It is actually part of the patch panel.  
Instructions for making connections in the wiring closet with this  
type of equipment follows.  
February 2003  
© 2003 Foundry Networks, Inc.  
5-3  
 
   
MAKING NETWORK CONNECTIONS  
1. Attach one end of a patch cable to an available port on the  
switch, and the other end to the patch panel.  
2. If not already in place, attach one end of a cable segment to  
the back of the patch panel where the punch-down block is  
located, and the other end to a modular wall outlet.  
3. Label the cables to simplify future troubleshooting.  
Figure 5-2. Wiring Closet Connections  
Equipment Rack  
(side view)  
24-Port Fast Ethernet Switch  
Punch-Down Block  
Patch Panel  
Wall  
5-4  
© 2003 Foundry Networks, Inc.  
February 2003  
 
FIBER OPTIC DEVICES  
Fiber Optic Devices  
An optional slide-in 1000BASE-SX, 1000BASE-LX, or  
1000BASE-X transceiver may be used for backbone and long  
distance connections, or for ISP (Internet) connections. A  
1000BASE-SX, 1000BASE-LX, or 1000BASE-X transceiver may  
also be for connecting to a high-speed server.  
Each single-mode fiber optic port requires 9/125 micron  
multimode fiber optic cabling with an SC connector at both ends.  
Each multimode fiber optic port requires 50/125 or 62.5/125  
micron multimode fiber optic cabling with an SC connector at  
both ends.  
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ODVHUVꢀDUHꢀFRPSOLDQWꢀZLWKꢀWKHꢀUHTXLUHPHQWVꢀRIꢀDꢀ&ODVVꢀꢆꢀ/DVHUꢀ3URGXFWꢀ  
DQGꢀDUHꢀLQKHUHQWO\ꢀH\HꢀVDIHꢀLQꢀQRUPDOꢀRSHUDWLRQꢅꢀ+RZHYHUꢄꢀ\RXꢀVKRXOGꢀ  
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1. Remove and keep the SC port’s rubber plug. When not  
connected to a fiber cable, the rubber plug should be replaced  
to protect the optics.  
2. Check that the fiber terminators are clean. You can clean the  
cable plugs by wiping them gently with a clean tissue or  
cotton ball moistened with a little ethanol. Dirty fiber  
terminators on fiber optic cables will impair the quality of the  
light transmitted through the cable and lead to degraded  
performance on the port.  
3. Connect one end of the cable to the SC port on the switch and  
the other end to the SC port on the other device. Since SC  
connectors are keyed, the cable can be attached in only one  
orientation.  
February 2003  
© 2003 Foundry Networks, Inc.  
5-5  
 
           
MAKING NETWORK CONNECTIONS  
Figure 5-3. Making SC Port Connections  
1
0
0
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A
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X
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m
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M
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M
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6
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FC  
TX  
RX  
SC fiber connector  
4. As a connection is made, check the Activity LED on the  
switch’s front panel for the corresponding module to be sure  
that the connection is valid.  
5-6  
© 2003 Foundry Networks, Inc.  
February 2003  
 
APPENDIX A  
TROUBLESHOOTING  
Diagnosing Switch Indicators  
Troubleshooting Chart  
Action  
Symptom  
PWR LED is Off  
• Internal power supply is disconnected.  
• Check connections between the switch,  
the power cord, the wall outlet.  
PWR LED is Amber  
Link LED is Off  
• Internal power supply has failed.  
• Contact your local dealer for assistance.  
• Verify that the switch and attached  
device are powered on.  
• Be sure the cable is plugged into both the  
switch and corresponding device.  
• If the switch is installed in a rack, check  
the connections to the punch-down block  
and patch panel.  
• Verify that the proper cable type is used  
and its length does not exceed specified  
limits.  
• Check the adapter on the attached device  
and cable connections for possible  
defects. Replace the defective adapter or  
cable if necessary.  
February 2003  
© 2003 Foundry Networks, Inc.  
A-1  
 
       
TROUBLESHOOTING  
Power and Cooling Problems  
If the power indicator does not turn on when the power cord is  
plugged in, you may have a problem with the power outlet,  
power cord, or internal power supply. However, if the unit  
powers off after running for a while, check for loose power  
connections, power losses or surges at the power outlet, and  
verify that the fans on the unit are unobstructed and running  
prior to shutdown. If you still cannot isolate the problem, then  
the internal power supply may be defective.  
Installation  
Verify that all system components have been properly installed. If  
one or more components appear to be malfunctioning (such as  
the power cord or network cabling), test them in an alternate  
environment where you are sure that all the other components  
are functioning properly.  
In-Band Access  
You can access the management agent in the switch from  
anywhere within the attached network using Telnet, a Web  
browser, or other network management software. However, you  
must first configure the switch with a valid IP address, subnet  
mask, and default gateway. If you have trouble establishing a link  
to the management agent, check to see if you have a valid  
network connection. Then verify that you entered the correct IP  
address. Also, be sure the port through which you are connecting  
to the switch has not been disabled. If it has not been disabled,  
then check the network cabling that runs between your remote  
location and the switch.  
A-2  
© 2003 Foundry Networks, Inc.  
February 2003  
 
           
IN-BAND ACCESS  
1RWHꢁ The management agent accepts up to four simultaneous  
Telnet sessions. If the maximum number of sessions  
already exists, an additional Telnet connection will not  
be able to log into the system.  
February 2003  
© 2003 Foundry Networks, Inc.  
A-3  
 
 
TROUBLESHOOTING  
A-4  
© 2003 Foundry Networks, Inc.  
February 2003  
 
APPENDIX B  
CABLES  
Specifications  
Cable Types and Specifications  
Type Max. Length  
Cat. 3, 4, 5 100-ohm UTP 100 m (328 ft)  
Cable  
Connector  
RJ-45  
10BASE-T  
100BASE-TX Cat. 5 100-ohm UTP  
100 m (328 ft)  
RJ-45  
1000BASE-SX 50/125 or 62.5/125  
micron core MMF  
See the following SC  
table  
1000BASE-LX 9/125 micron SMF  
5 km (3.12 miles) SC  
1000BASE-T Cat. 5, 5e 100-ohm UTP 100 m (328 ft)  
RJ-45  
1000BASE-SX Fiber Specifications  
Fiber Diameter  
Fiber Bandwidth  
160 MHz/km  
Maximum Cable Length  
2-220 m (7-722 ft)  
62.5/125 micron  
MMF  
200 MHz/km  
2-275 m (7-902 ft)  
50/125 micron MMF 400 MHz/km  
500 MHz/km  
2-500 m (7-1641 ft)  
2-550 m (7-1805 ft)  
February 2003  
© 2003 Foundry Networks, Inc.  
B-1  
 
       
CABLES  
Twisted-Pair Cable and Pin Assignments  
&DXWLRQꢁ  
DO NOT plug a phone jack connector into any RJ-45 port.  
Use only twisted-pair cables with RJ-45 connectors that  
conform with FCC standards.  
For 10BASE-T/100BASE-TX connections, a twisted-pair cable  
must have two pairs of wires. Each wire pair is identified by two  
different colors. For example, one wire might be red and the  
other, red with white stripes. Also, an RJ-45 connector must be  
attached to both ends of the cable.  
&DXWLRQꢁ  
Each wire pair must be attached to the RJ-45 connectors in  
a specific orientation. (See “Cabling Guidelines” on page -1  
for an explanation.)  
The figure below illustrates how the pins on the RJ-45 connector  
are numbered. Be sure to hold the connectors in the same  
orientation when attaching the wires to the pins.  
10BASE-T/100BASE-TX Pin Assignments  
Use unshielded twisted-pair (UTP) or shielded twisted-pair (STP)  
cable for RJ-45 connections: 100-ohm Category 3, 4 or 5 cable for  
10 Mbps connections or 100-ohm Category 5 cable for 100 Mbps  
connections. Also be sure that the lengthof anytwisted-pair  
connection does not exceed 100 meters (328 feet).  
The RJ-45 ports on the switch base unit support automatic MDI/  
MDI-X operation, you can use straight-through cables for all  
B-2  
© 2003 Foundry Networks, Inc.  
February 2003  
 
       
TWI STED-PAIR CABLE AND PINASSIGNMENTS  
network connections to PCs or servers, or to other switches or  
hubs. The RJ-45 port on the 100BASE-TX module is an MDI-X  
port, which allows you to use straight-through cable for  
connections to PCs and servers. In straight-through cable, pins 1,  
2, 3, and 6, at one end of the cable, are connected straight through  
to pins 1, 2, 3, and 6 at the other end of the cable. For connection  
to hubs or switches which have MDI-X ports, a crossover cable  
must be used.  
Pin  
MDI-X Signal  
Name  
MDI Signal  
Name  
1
Receive Data plus  
(RD+)  
Transmit Data  
plus (TD+)  
2
Receive Data minus  
(RD-)  
Transmit Data  
minus (TD-)  
3
Transmit Data plus  
(TD+)  
Receive Data plus  
(RD+)  
6
Transmit Data  
minus (TD-)  
Receive Data  
minus (RD-)  
4,5,7,8  
Not used  
Not used  
Note: The “+” and “-” signs represent the polarity  
of the wires that make up each wire pair.  
February 2003  
© 2003 Foundry Networks, Inc.  
B-3  
 
CABLES  
Straight-Through Wiring  
If the twisted-pair cable is to join two ports and only one of the  
ports has an internal crossover (MDI-X), the two pairs of wires  
must be straight-through.  
Straight-Through RJ-45 Pin As-  
signments  
End 1  
End 2  
1 (RD+)  
2 (RD-)  
3 (TD+)  
6 (TD-)  
1 (TD+)  
2 (TD-)  
3 (RD+)  
6 (RD-)  
Crossover Wiring  
If the twisted-pair cable is to join two ports and either both ports  
are labeled with an “X” (MDI-X) or neither port is labeled with an  
“X” (MDI), a crossover must be implemented in the wiring.  
Crossover RJ-45 Pin Assign-  
ments  
End 1  
End 2  
1 (TD+)  
2 (TD-)  
3 (RD+)  
6 (RD-)  
3 (RD+)  
6 (RD-)  
1 (TD+)  
2 (TD-)  
B-4  
© 2003 Foundry Networks, Inc.  
February 2003  
 
   
1000BASE-T PINASSIGNMENTS  
1000BASE-T Pin Assignments  
The table below shows the 1000BASE-T MDI and MDI-X port  
pinouts. These ports require that all four pairs of wires be  
connected. Note that for 1000BASE-T operation, all four pairs of  
wires are used for both transmit and receive.  
Use 100-ohm Category 5 or 5e unshielded twisted-pair (UTP) or  
shielded twisted-pair (STP) cable for 1000BASE-T connections.  
Also be sure that the length of any twisted-pair connection does  
not exceed 100 meters (328 feet).  
Pi  
n
MDI Signal Name  
MDI-X Signal Name  
1
Transmit Data plus  
(TD1+)  
Transmit Data plus (TD2  
+)  
2
3
4
5
6
7
8
Receive Data minus  
(RD1-)  
Receive Data minus  
(RD2-)  
Transmit Data plus  
(TD2+)  
Transmit Data plus  
(TD1+)  
Transmit Data plus  
(TD3+)  
Transmit Data plus  
(TD4+)  
Receive Data minus  
(RD3-)  
Receive Data minus  
(RD4-)  
Receive Data minus  
(RD2-)  
Receive Data minus  
(RD1-)  
Transmit Data plus  
(TD4+)  
Receive Data minus  
(RD3+)  
Receive Data minus  
(RD4-)  
Receive Data minus  
(RD3-)  
February 2003  
© 2003 Foundry Networks, Inc.  
B-5  
 
   
CABLES  
1000BASE-T Cable Requirements  
All Category 5 UTP cables that are used for 100BASE-TX  
connections should also work for 1000BASE-T, providing that all  
four wire pairs are connected. However, it is recommended that  
for all critical connections, or any new cable installations,  
Category 5e (enhanced Category 5) or 6 cable should be used.  
The Category 5e and 6 specifications include test parameters that  
are only recommendations for Category 5. Therefore, the first  
step in preparing existing Category 5 cabling for running  
1000BASE-T is a simple test of the cable installation to be sure  
that it complies with the IEEE 802.3ab standards.  
Cable Testing for Existing Category 5 Cable  
Installed Category 5 cabling must pass tests for Attenuation,  
Near-End Crosstalk (NEXT), and Far-End Crosstalk (FEXT). This  
cable testing information is specified in the ANSI/TIA/  
EIA-TSB-67 standard. Additionally, cables must also pass test  
parameters for Return Loss and Equal-Level Far-End Crosstalk  
(ELFEXT). These tests are specified in the ANSI/TIA/  
EIA-TSB-95 Bulletin, “The Additional Transmission Performance  
Guidelines for 100 Ohm 4-Pair Category 5 Cabling.”  
Note that when testing your cable installation, be sure to include  
all patch cables between switches and end devices.  
Adjusting Existing Category 5 Cabling  
If your existing Category 5 installation does not meet one of the  
test parameters for 1000BASE-T, there are basically three  
measures that can be applied to try to correct the problem:  
1. Replace any Category 5 patch cables with high-performance  
Category 5e or 6 cables.  
2. Reduce the number of connectors used in the link.  
B-6  
© 2003 Foundry Networks, Inc.  
February 2003  
 
     
CONSOLE PORT PINASSIGNMENTS  
3. Reconnect some of the connectors in the link.  
Console Port Pin Assignments  
The DB-9 serial port on the switch’s front panel is used to connect  
to the switch for out-of-band console configuration. The on-board  
menu-driven configuration program can be accessed from a  
terminal or a PC running a terminal emulation program. The pin  
assignments used to connect to the serial port are provided in the  
following tables.  
DB-9 Port Pin Assignments  
EIA  
Circ  
uit  
CCI  
TT  
Sign  
al  
Description  
Switc  
h’s  
DB9  
DTE  
Pin #  
PC  
PC  
DB9  
DTE  
Pin #  
DB25  
DTE  
Pin #  
BB  
BA  
AB  
104  
103  
102  
RxD (Received  
Data)  
2
2
3
TxD (Transmitted  
Data)  
3
5
3
5
2
7
SG (Signal Ground)  
No other pins are used.  
Console Port to 9-Pin DTE Port on PC  
February 2003  
© 2003 Foundry Networks, Inc.  
B-7  
 
         
CABLES  
Switch’s  
9-Pin Se-  
rial Port  
Null Modem  
PC’s  
9-Pin  
DTE  
Port  
2 RXD  
3 TXD  
<--------- TXD ------------ 3 TXD  
----------- RXD ----------> 2 RXD  
----------- SGND ---------- 5 SGND  
5 SGND  
No other pins are used.  
Console to 25-Pin DTE Port on PC  
Switch’s  
9-Pin Se-  
rial Port  
Null Modem  
PC’s  
25-Pin  
DTE  
Port  
2 RXD  
3 TXD  
<--------- TXD ------------ 2 TXD  
----------- RXD ----------> 3 RXD  
----------- SGND ---------- 7 SGND  
5 SGND  
No other pins are used.  
B-8  
© 2003 Foundry Networks, Inc.  
February 2003  
 
 
APPENDIX C  
SPECIFICATIONS  
Physical Characteristics  
Base Unit  
Ports  
24 10BASE-T/100BASE-TX, with auto-negotiation  
2 slots for optional 1000BASE-T, 1000BASE-SX,1000BASE-LX,  
and 1000BASE-X GBIC modules  
Network Interface  
10BASE-T: RJ-45 (100-ohm, UTP cable; Categories 3, 4, 5)  
100BASE-TX:RJ-45 (100-ohm, UTP cable; Category 5)  
Ports 1-24: RJ-45 connectors, auto MDI/MDI-X  
Communication Speed  
10 and 100 Mbps  
Communication Mode  
Full and half duplex  
Buffer Architecture  
64 Mbyte per system  
Aggregate Bandwidth  
February 2003  
© 2003 Foundry Networks, Inc.  
C-1  
 
           
SPECIFICATIONS  
8.8 Gbps  
Switching Database  
8K MAC address entries  
LEDs  
System: PWR, Diag, Stack  
Ports: Link/Activity  
Weight  
3.08 kg (6 lb 13 oz)  
Size  
44 x 32.4 x 4.3 cm (17.32 x 12.8 x 1.69 in.)  
Temperature  
Operating: 0 to 50 °C (32 to 122 °F)  
Storage: -40 to 70 °C (-40 to 158 °F)  
Humidity  
Operating: 10% to 90%  
Power Supply  
Internal, auto-ranging transformer: 100 to 240 VAC, 47 to 63 Hz  
Power Consumption  
60 Watts maximum  
Heat Dissipation  
205 BTU/hr maximum  
C-2  
© 2003 Foundry Networks, Inc.  
February 2003  
 
     
MANAGEMENT FEATURES  
Maximum Current  
5.0 A @ 12 V  
Management Features  
In-Band Management  
Telnet, or SNMP manager  
Out-of-Band Management  
RS-232 DB-9 console port  
Software Loading  
TFTP in-band, or XModem out-of-band  
MIB Support  
MIB II (RFC1213), Bridge MIB (RFC 1493, without Static Table)  
Standards  
IEEE 802.3 Ethernet, IEEE 802.3u Fast Ethernet  
IEEE 802.1p priority tags  
IEEE 802.3ac VLAN tagging  
IEEE 802.1D (Bridging)  
IEEE 802.3ad Link Aggregation  
IEEE 802.1Q VLAN Bridge Management  
February 2003  
© 2003 Foundry Networks, Inc.  
C-3  
 
         
SPECIFICATIONS  
IEEE 802.1x RADIUS user authentication  
IEEE 802.3x full-duplex flow control  
ISO/IEC 8802-3  
UDP (RFC 768), IP (RFC 791), TCP (RFC793), TFTP (RFC 783),  
TELNET (RFC 783), SNMP (RFC 1157), MIB II (RFC 1213), Traps  
(RFC 1215), Bridge MIB (RFC 1493), RMON (RFC 1757), HTML  
(RFC 1866), HTTP (RFC 2068), RADIUS (RFC 2618)  
Compliances  
CE Mark  
Emissions  
FCC Class A  
Industry Canada Class A  
EN55022 (CISPR 22) Class A  
EN 61000-3-2/3  
VCCI Class A  
C-Tick - AS/NZS 3548 (1995) Class A  
Immunity  
EN 61000-4-2/3/4/5/6/8/11  
Safety  
CSA/NRTL (CSA 22.2.950 & UL 1950)  
TUV/GS (EN60950)  
C-4  
© 2003 Foundry Networks, Inc.  
February 2003  
 
           
GLOSSARY  
10BASE-T  
IEEE 802.3 specification for 10 Mbps Ethernet over two pairs of  
Category 3, 4, or 5 UTP cable.  
100BASE-TX  
IEEE 802.3u specification for 100 Mbps Fast Ethernet over two  
pairs of Category 5 UTP cable.  
1000BASE-LX  
IEEE 802.3z specification for Gigabit Ethernet over one strand of  
9/125 micron core fiber cable.  
1000BASE-LH  
Gigabit Ethernet over two strands of 9/125 micron core fiber  
cable.  
1000BASE-SX  
IEEE 802.3z specification for Gigabit Ethernet over two strands of  
50/125 or 62.5/125 micron core fiber cable.  
1000BASE-T  
IEEE 802.3ab specification for Gigabit Ethernet over two pairs of  
Category 5, 5e 100-ohm UTP cable.  
Auto-Negotiation  
Signalling method allowing each node to select its optimum  
operational mode (e.g., 10 Mbps or 100 Mbps and half or full  
duplex) based on the capabilities of the node to which it is  
connected.  
February 2003  
© 2003 Foundry Networks, Inc.  
Glossary-1  
 
 
Bandwidth  
The difference between the highest and lowest frequencies  
available for network signals. Also synonymous with wire speed,  
the actual speed of the data transmission along the cable.  
Collision  
A condition in which packets transmitted over the cable interfere  
with each other. Their interference makes both signals  
unintelligible.  
Collision Domain  
Single CSMA/CD LAN segment.  
CSMA/CD  
Carrier Sense Multiple Access/Collision Detect is the  
communication method employed by Ethernet and Fast Ethernet.  
End Station  
A workstation, server, or other device that does not act as a  
network interconnection.  
Ethernet  
A network communication system developed and standardized  
by DEC, Intel, and Xerox, using baseband transmission, CSMA/  
CD access, logical bus topology, and coaxial cable. The successor  
IEEE 802.3 standard provides for integration into the OSI model  
and extends the physical layer and media with repeaters and  
implementations that operate on fiber, thin coax and twisted-pair  
cable.  
Fast Ethernet  
A 100 Mbps network communication system based on Ethernet  
and the CSMA/CD access method.  
Glossary-2  
© 2003 Foundry Networks, Inc.  
February 2003  
 
Fast Ethernet Switch  
Device that provides a full 100 Mbps bandwidth (or either 10 or  
100 Mbps bandwidth with Auto-Negotiation) to each port (LAN  
segment).  
Full Duplex  
Transmission method that allows switch and network card to  
transmit and receive concurrently, effectively doubling the  
bandwidth of that link.  
Gigabit Ethernet  
A 1000 Mbps network communication system based on Ethernet  
and the CSMA/CD access method.  
IEEE 802.3  
Defines carrier sense multiple access with collision detection  
(CSMA/CD) access method and physical layer specifications.  
IEEE 802.3ab  
Defines CSMA/CD access method and physical layer  
specifications for 1000BASE-T Fast Ethernet.  
IEEE 802.3u  
Defines CSMA/CD access method and physical layer  
specifications for 100BASE-TX Fast Ethernet.  
IEEE 802.3x  
Defines Ethernet frame start/stop requests and timers used for  
flow control on full-duplex links.  
IEEE 802.3z  
Defines CSMA/CD access method and physical layer  
specifications for 1000BASE Gigabit Ethernet.  
February 2003  
© 2003 Foundry Networks, Inc.  
Glossary-3  
 
LAN Segment  
Separate LAN or collision domain.  
LED  
Light emitting diode used for monitoring a device or network  
condition.  
Link Segment  
Length of twisted-pair or fiber cable joining a pair of repeaters or  
a repeater and a PC.  
Local Area Network (LAN)  
A group of interconnected computer and support devices.  
Media Access Control (MAC)  
A portion of the networking protocol that governs access to the  
transmission medium, facilitating the exchange of data between  
network nodes.  
MIB  
An acronym for Management Information Base. It is a set of  
database objects that contains information about the device.  
Network Diameter  
Wire distance between two end stations in the same collision  
domain.  
RJ-45 Connector  
A connector for twisted-pair wiring.  
Switched Ports  
Ports that are on separate collision domains or LAN segments.  
Glossary-4  
© 2003 Foundry Networks, Inc.  
February 2003  
 
Transmission Control Protocol/Internet Protocol (TCP/IP)  
Protocol suite that includes TCP as the primary transport  
protocol, and IP as the network layer protocol.  
UTP  
Unshielded twisted-pair cable.  
February 2003  
© 2003 Foundry Networks, Inc.  
Glossary-5  
 
Glossary-6  
© 2003 Foundry Networks, Inc.  
February 2003  
 
cord sets, international 4-6  
Symbols  
. 2-4  
D
Numerics  
device connections 5-1  
1000 Mbps connectivity  
rules 3-2  
1000BASE-LX  
fiber cable lengths 3-2  
electrical interference,  
avoiding 4-1  
1000BASE-SX  
fiber cable lengths 3-2  
1000BASE-T  
cable lengths 3-3  
F
100BASE-TX  
features C-3  
cable lengths 3-3  
ports 2-4  
management 2-9  
switch 2-8  
10BASE-T  
full-duplex connectivity 3-1  
cable lengths 3-3  
ports 2-4  
G
I
A
Gigabit Ethernet cable  
address table size C-2  
adhesive feet, attaching 4-5  
air flow requirements 4-1  
application example 3-2  
grounding for racks 4-3  
B
C
brackets, attaching 4-4  
buffer size C-1  
connecting devices to the  
desktop or shelf  
port connections 5-1, 5-5  
power requirements 4-1  
problems A-2  
rack mounting 4-3  
site requirements 4-1  
wiring closet  
cable  
lengths 3-2, 3-3  
specifications B-1  
cleaning fiber terminators 5-5  
compliances  
EMC C-4  
safety C-4  
connections 5-3  
connectivity rules  
1000 Mbps 3-2  
L
console port  
laser safety 5-5  
LED indicators  
Power 2-6  
pin assignments B-7  
contents of package 4-2  
cooling problems A-2  
February 2003  
© 2003 Foundry Networks, Inc.  
Index-1  
 
 
,QGH[  
problems A-1  
location requirements 4-1  
Q
R
QoS 2-3  
M
management  
rear panel receptacles 2-7  
agent 2-2  
features 2-9, C-3  
out-of-band 2-2  
SNMP 2-2  
connections 5-1  
description 2-4  
Web-based 2-2  
MDI-X port 5-2  
MIB support C-3  
modules  
rubber foot pads,  
S
100BASE-TX C-4  
SC port connections 5-5  
screws for rack mounting 4-2  
cables 5-5  
slide-in C-4  
mounting the switch  
in a rack 4-3  
on a desktop or shelf 4-4  
site selelction 4-1  
SNMP agent 2-2  
multicast switching  
IGMP Snooping 2-4  
multimode fiber optic  
compliances C-4  
cables 5-5  
environmental C-2  
physical C-1  
N
O
P
network  
connections 5-1, 5-5  
examples 3-2  
Support, Technical 1-2  
surge suppressor, using 4-1  
switch architecture 2-2  
switching, introduction  
to 3-1  
optional modules  
specifications C-4  
out-of-band management 2-2  
package contents 4-2  
password  
T
tags, priority 2-4  
Technical Support 1-2  
e-mail 1-2  
support 1-2  
pin assignments B-2  
console port B-7  
telephone 1-2  
Web 1-2  
DB-9 B-7  
port saturation 2-3  
ports, connecting to 5-1, 5-5  
power, connecting to 4-6  
problems,  
Telnet A-3  
temperature within a  
rack 4-3  
troubleshooting  
troubleshooting A-1  
in-band access A-2  
power and cooling  
Index-2  
© 2003 Foundry Networks, Inc.  
February 2003  
 
Index  
problems A-2  
switch indicators A-1  
twisted-pair connections 5-1  
V
VLANs 2-3  
W
Web-based management 2-2  
Weighted Round Robin  
Queuing 2-4  
February 2003  
© 2003 Foundry Networks, Inc.  
Index-3  
 
,QGH[  
Index-4  
© 2003 Foundry Networks, Inc.  
February 2003  
 

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