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copyright laws.
Publication Number
5967-6915
June 1998
Applicable Products
HP ProCurve Switch 1600M (HP J4120A)
HP ProCurve Switch 2400M (HP J4122A)
Disclaimer
The information contained in this document is subject to
change without notice.
HEWLETT-PACKARD COMPANY MAKES NO WARRANTY
OF ANY KIND WITH REGARD TO THIS MATERIAL,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE. Hewlett-Packard shall not
be liable for errors contained herein or for incidental or
consequential damages in connection with the furnishing,
performance, or use of this material.
Hewlett-Packard assumes no responsibility for the use or
reliability of its software on equipment that is not furnished
by Hewlett-Packard.
Warranty
See the Customer Support/Warranty booklet included with
the product.
A copy of the specific warranty terms applicable to your
Hewlett-Packard products and replacement parts can be
obtained from your HP Sales and Service Office or
authorized dealer.
Hewlett-Packard Company
8000 Foothills Boulevard, m/s 5552
Roseville, California 95747-5552
http://www.hp.com/go/network_city
1624~1.boo : 1624TOC.FM Page iii Thursday, July 2, 1998 1:32 PM
Contents
1 Introducing the HP ProCurve Switch 1600M and 2400M
Introducing the HP ProCurve Switch 1600M
and 2400M
The HP ProCurve Switch 1600M and 2400M are multiport switches that can
be used to build high-performance switched workgroup networks. These
switches are store-and-forward devices that offers low latency for high-speed
networking.
1
Introducing the HP ProCurve
Switch 1600M and 2400M
HP ProCurve Switch 1600M
(HP J4120A)
HP ProCurve Switch 2400M
(HP J4122A)
Throughout this manual, these switches will be abbreviated as the Switch
1600M and Switch 2400M, or when common features are being described, as
the Switch 1600M and 2400M.
The Switch 1600M has 16 autosensing 10/100Base-T ports, and a universal slot
for installing any of the supported switch modules (see page 1-7).
The Switch 2400M has 24 autosensing 10/100Base-T ports. (The 10/100Base-T
Module installed in the Switch 2400M is fixed in place and cannot be removed.)
With these switches you can build a switched network infrastructure by
connecting them to hubs, other switches, or routers, or you can connect
computers, printers, and servers to these switches to provide dedicated
bandwidth to those devices.
This chapter describes your HP Switch 1600M and 2400M including:
Introducing the HP ProCurve Switch 1600M and 2400M
Front of the Switches
LEDs
Table 1-1.Switch LEDs
Switch LEDsStateMeaning
Power
(green)
Fault
(orange)
Self Test
(green)
OnThe switch is receiving power.
OffThe switch is NOT receiving power.
OffThe normal state; indicates that there are no fault conditions on the switch.
†
Flashing
OnOn briefly after the switch is powered on or reset, at the beginning of switch self test.
OffThe normal operational state; the switch is not undergoing self test.
OnThe switch self test and initialization are in progress after you have power cycled or
Flashing
A fault has occurred on the switch, the switch module (if installed), or a fan. The Status
LED for the device with the fault will flash simultaneously.
If on for a prolonged time, the switch has encountered a fatal hardware failure, or has
failed its self test. See chapter 3, “Troubleshooting” for more information.
reset the switch. The switch is not operational until this LED goes off. The Self T est LED
also comes on briefly when you “hot swap” a module into the switch; the module is self
tested when hot swapped.
†
A component of the switch has failed its self test. The status LED for that component,
for example a fan, and the switch Fault LED will flash simultaneously.
Introducing the HP ProCurve
Switch 1600M and 2400M
Mode Select
(3 green LEDs)
Module
Status (green)
Fan Status
(green)
†
The flashing behavior is an on/off cycle once every 1.6 seconds, approximately.
ActIndicates that the port Mode LEDs are displaying network activity information.
FdxIndicates that the port Mode LEDs are lit for ports that are in Full Duplex Mode.
100Indicates that the port Mode LEDs are lit for ports that are operating at 100 Mbps.
OnA module is installed in the switch module slot and that the module is undergoing or
has passed self test.
OffA module is not installed in the switch module slot.
†
Flashing
OnThe cooling fans are operating normally.
Flashing
The module in the slot, for the Switch 1600M, or the fixed 10/100Base-T Module, for the
Switch 2400M, has failed self test or is not installed properly. The switch Fault LED, and
the Self T est LED may be flashing simultaneously. For the Switch 1600M, if the Module
Status LED is flashing by itself, a different module type has been hot swapped into the
slot without the switch being reset. See “Hot Swapping Switch Modules” on page 2-15.
†
One or more of the cooling fans have failed. The switch Fault LED will be flashing
simultaneously.
Introducing the HP ProCurve Switch 1600M and 2400M
Front of the Switches
Table 1-2.Switch Module LEDs
Port LEDsStateMeaning
Link OnIndicates the port is enabled and receiving a link beat signal (for the twisted-pair ports),
or a strong enough light level (for the fiber-optic ports, if installed in the Switch 1600M)
from the connected device.
OffOne of these conditions exists:
• no active network cable is connected to the port
Switch 1600M and 2400M
Introducing the HP ProCurve
ModeDisplays network activity information, or whether the port is configured for Full Duplex operation, or
100 Mbps operation depending on the mode selected. See “Mode Select Button and Indicator LEDs”
on the next page for more information.
• the port is not receiving link beat or sufficient light
• the port has been disabled through the switch console, the web browser interface,
or HP TopTools.
Mode Select Button and Indicator LEDs
To optimize the amount of information that can be displayed for each of the
switch ports without overwhelming you with LEDs, the Switch 1600M and
2400M use a Mode LED for each port. The operation of this LED is controlled
by the Mode Select button, and the current setting is indicated by the Mode
indicator LEDs near the button. Press the button to step from one mode to the
next.
Mode Select button
and indicator LEDs
■If the Activity (Act) indicator LED is lit, each port Mode LED displays
activity information for the port—it flickers as network traffic is received
and transmitted through the port.
■If the Full Duplex (Fdx) indicator LED is lit, the port Mode LEDs light for
those ports that are operating in full duplex.
■If the 100 Mbps (100) indicator LED is lit, the port Mode LEDs light for
Introducing the HP ProCurve Switch 1600M and 2400M
Front of the Switches
Console Port
This port is used to connect a console to the switch by using the serial cable
supplied with the switch. This connection is described under “Connecting a
Console to the Switch” in chapter 2, “Installing the Switch 1600M and 2400M”.
The console can be a PC running a VT-100 terminal emulator, or a VT-100
terminal.
Reset Button
This button is used to reset the switch while it is powered on. This action clears
any temporary error conditions that may have occurred, executes the switch
self test, and resets all network activity counters to zero. The counters are
displayed in the switch console interface, the switch web browser interface,
and through SNMP network management applications, such as HP TopTools
for Hubs & Switches.
Clear Button
This button is used for these purposes:
■Deleting Passwords - When pressed by itself for at least one second,
deletes any switch console access passwords that you may have configured. Use this feature if you have misplaced the password and need
console access.
Introducing the HP ProCurve
Switch 1600M and 2400M
This button is provided for your convenience, but its presence means
that if you are concerned with the security of the switch configuration
and operation, you should make sure the switch is installed in a secure
location, such as a locked wiring closet.
■
Restoring Factory Default Configuration - When pressed with the
Reset button in a specific pattern, clears any configuration changes you
may have made through the switch console, the web browser interface,
and SNMP management, and restores the factory default configuration to
the switch. For the specific method to restore the factory default configuration, see “Restoring the Factory Default Configuration” in chapter 3,
“Troubleshooting” of this manual.
Introducing the HP ProCurve Switch 1600M and 2400M
Back of the Switch
Back of the Switch
.
Switch 1600M and 2400M
Introducing the HP ProCurve
AC power connector
cooling vent - make sure this is not
obstructed for proper switch operation
Power Connector
The Switch 1600M and 2400M do not have a power switch; they are powered
on when connected to an active AC power source. The switches automatically
adjust to any voltage between 100-127 and 200-240 volts and either 50 or 60
Hz. There are no voltage range settings required.
Introducing the HP ProCurve Switch 1600M and 2400M
Switch Features
The features of the Switch 1600M and 2400M include:
■network ports for the 1600M:
•16 autosensing 10/100Base-TX RJ-45 ports
•a universal slot for installing any of the available switch modules—as
of this printing, this includes:
–8-port 10/100Base-TX Module (HP J4111A)
–4-port 100Base-FX Module (HP J4112A)
–1-port Gigabit-SX Module (HP J4113A)
–4-port 10Base-FL Module (HP J4118A)
•the module is “hot swappable”
■network ports for the 2400M:
•24 autosensing 10/100Base-TX RJ-45 ports
■plug-and-play networking—all ports are enabled—just connect the
network cables to active network devices and your switched network is
operational
■automatic learning of the network addresses in the switch’s 8000-address
forwarding table, with configurable address aging value
■configurable full-duplex operation of the 10 Mbps, 100 Mbps, and Gigabit
ports (when a Gigabit-SX Switch Module is installed in the Switch 1600M)
■easy management of the switches through several available interfaces:
•web browser interface—an easy to use built-in graphical interface
that can be accessed from common web browsers
•console interface—a full featured, easy to use, VT-100 terminal
interface that is especially good for out-of-band switch management,
or for telnet access to the switch
•HP TopTools for Hubs & Switches—an SNMP-based graphical
interface that is used to manage your entire network, included with
your new switch
■support for the Spanning Tree Protocol to eliminate network loops
support for up to 8 IEEE 802.1Q-compliant VLANs so you can divide the
■
attached end nodes into logical groupings that fit your business needs
■support for many advanced features to enhance network performance—
described in the Management and Configuration Guide that came with
your switch.
Introducing the HP ProCurve Switch 1600M and 2400M
Switch Operation Overview
Switch Operation Overview
Address Table Operation
Address Learning. As devices are connected to the switch ports, either
directly or through hubs or other switches that are connected to the switches,
Switch 1600M and 2400M
Introducing the HP ProCurve
the MAC addresses of those devices are learned automatically and stored in
the 8000-entry address table featured by the Switch 1600M and 2400M. The
switches also identify the number of the port on which each address is learned
so they know the network location of each device.
Forwarding, Filtering, Flooding. When the switch receives a packet, it
determines the destination address, looks for the address in the address table.
Based on the port location of that address, the switch then determines whether
to forward, filter-out, or flood the packet.
■forward - if the destination address is on a different port than the one on
which the packet was received, the packet is forwarded to the destination
port and on to the destination device.
■filter out - if the destination address is on the same port as the one on
which the packet was received, the packet is filtered out. The switch
thereby isolates local traffic so the rest of the network connected to the
switch does not lose bandwidth dealing with unnecessary traffic.
■flood - whenever a new destination address is found in a packet, the
destination address will not yet be in the switch’s address table and the
switch cannot know whether to forward or filter out the packet. In this
case, it sends the packet to all the ports. This is referred to as “flooding”.
When the destination device receives the packet, it replies, and the switch
learns the new address from the reply packet. Then, all future packets
destined for that address are forwarded or filtered out appropriately.
Network Moves and Changes. When devices are moved in the network,
and become connected to a different switch port, the Switch 1600M and 2400M
automatically recognizes the change and updates the address table with the
new port location of the device. Communication with the device is automatically maintained, without any address table manipulation being required.
Introducing the HP ProCurve Switch 1600M and 2400M
Switch Operation Overview
Simultaneous Network Communications
In addition to traffic isolation benefits provided by the Switch 1600M and
2400M address table operation, the switch also enhances network performance because it can conduct multiple, simultaneous network connections.
Instead of sharing the network bandwidth, as in connections to a hub, each
connection has its own 10 Mbps, 100 Mbps, or 1000 Mbps bandwidth to use.
Effect of VLANs
If you configure multiple virtual LANs (VLANs) on the switch, each VLAN
behaves as a “logical switch” containing the switch ports that you assign to it.
Each logical switch behaves as an isolated broadcast domain, just as if it were
a separate physical switch. The forward, filter, and flood behavior described
for the physical switch above, operates the same for each of the logical
switches defined by the VLANs: packets are forwarded or flooded only to the
ports that are within a given VLAN. Just as for separate physical switches,
there is no communication between ports that are in separate VLANs unless
the VLANs are connected by an external router.
For more information on configuring VLANs and their behavior, see the
Management and Configuration Guide that came with your switch.
The HP Switch 1600M and 2400M are easy to install units. They each come
with an accessory kit that includes the brackets for mounting the switch in a
standard 19-inch telco rack or an equipment cabinet, or on a wall, and with
rubber feet that can be attached so the switch can be securely located on a
horizontal surface. The brackets are designed to allow mounting the switch
in a variety of orientations.
This chapter shows you how to install your Switch 1600Mand 2400M.
2
Installing the Switch 1600M
Included Parts
The Switch 1600M and 2400M have the following components shipped with
them:
■HP ProCurve Switch 1600M and 2400M Installation Guide (5967-6915),
this manual
■HP ProCurve Management and Configuration Guide
(5967-2142 for the 1600M, and 5967-6914 for the 2400M)
■HP TopTools for Hubs & Switches - CD ROM and booklet
■Customer Support/Warranty booklet
■Accessory kit (5064-2085)
•two mounting brackets
•four 10 mm M4 screws to attach the mounting brackets to the switch
•four 5/8-inch number 12-24 screws to attach the switch to a rack
•four rubber feet
Console cable
■
■Power cord, one of the following:
and 2400M
Australia/New Zealand
United Kingdom
China
Continental Europe
Denmark
Japan
Switzerland
United States/Canada/Mexico
Follow these easy steps to install your switch. The rest of this chapter provides
details on these steps.
1.Prepare the installation site (page 2-4). Make sure that the physical
environment into which you will be installing the switch is properly
prepared including having the correct network cabling ready to connect
to the switch, and having a good location for the switch. Please see page
2-3 for some installation precautions.
and 2400M
Installing the Switch 1600M
2.Install switch module (optional on Switch 1600M only—page 2-5).
The Switch 1600M has a slot for installing any of the supported HP switch
modules. Depending on where you will install the Switch 1600M, it may
be easier to install the module first, but the modules are “hot swappable”—they can also be installed and removed after the switch is
installed and powered on.
3.Verify that the switch passes self test (page 2-6). This is a simple
process of plugging the switch into a power source and observing that the
LEDs on the switch’s front panel and on the modules show correct
operation.
4.Mount the switch (page 2-8). The Switch 1600M and 2400M can be
mounted in a 19-inch telco rack, in an equipment cabinet, on a wall, or on
a horizontal surface.
5.Connect power to the switch (page 2-11). Once the switch is
mounted, plug it in to the nearby main power source.
6.Connect the network devices (page 2-12). Using the appropriate
network cables, connect other switches, hubs, routers, computers,
servers, printers, and other network devices to the switch ports.
7.(Optional) Connect a console to the switch (page 2-13). You may
wish to modify the switches’ configuration, for example, to configure an
IP address so they can be managed using a web browser, from an SNMP
network management station, or through a telnet session to the switch
console. Configuration changes can be made easily by using the included
console cable to connect a PC to the switches’ console port.
At this point, the switch is fully installed and your network should be up and
running. See the rest of this chapter if you need more detailed information on
any of these installation steps.
Follow these precautions when installing your HP Switch 1600M and 2400M.
Installing the Switch 1600M and 2400M
Installation Procedures
Warning
Cautions
■The rack or cabinet should be adequately secured to prevent it from
becoming unstable and/or falling over.
Devices installed in a rack or cabinet should be mounted as low as
possible, with the heaviest device at the bottom and progressively lighter
devices installed above.
■Make sure that the power source circuits are properly grounded, then use
the power cord supplied with the switch to connect it to the power source.
If your installation requires a different power cord than the one supplied
with the switch, be sure to use a power cord displaying the mark of the
safety agency that defines the regulations for power cords in your country.
The mark is your assurance that the power cord can be used safely with
the switch.
■Ensure that the switch does not overload the power circuits, wiring, and
over-current protection. To determine the possibility of overloading the
supply circuits, add together the ampere ratings of all devices installed on
the same circuit as the switch and compare the total with the rating limit
for the circuit. The maximum ampere ratings are usually printed on the
devices near the AC power connectors.
■Do not install the switch in an environment where the operating ambient
temperature might exceed 55°C (131°F).
■Make sure the air flow around the sides and back of the switch is not
restricted.
■Make sure that if no module is installed in the module slot, the cover plate
is installed to cover the slot. A cover plate is required for safe operation,
and to ensure proper switch cooling.
■Cabling Infrastructure - Ensure that the cabling infrastructure meets
the necessary network specifications. See the following table for cable
types and lengths, and see appendix B, “Cables and Connectors” for more
information:
Table 2-1.Summary of Cable Types to Use with the Switch
Port TypeCable TypeLength Limits
and 2400M
Installing the Switch 1600M
10Base-Tcategory 3, 4, or 5, 100 ohm
unshielded twisted-pair
(UTP)
10Base-FL
(Switch 1600M
only)
100Base-TXcategory 5, 100-ohm UTP or
100Base-FX
(Switch 1600M
only)
850 nm multimode fiberoptic cables that are fitted
with ST connectors, and
conform to ISO/IEC 793-2
type B1 and ITU-T G.652
standards
shielded twisted-pair (STP)
1300 nm multimode fiberoptic cables that are fitted
with SC connectors, and
conform to ISO/IEC 793-2
type B1 and ITU-T G.652
standards
• category 3, 4, or 5 - 100 meters
Note: Since the 10Base-T operation is through
10/100Base-TX ports, if you ever want to upgrade
the ports to 100Base-T, it would be best to cable
the ports initially with category 5 cable.
For connecting these ports to end nodes or other
MDI ports, use “straight-through” cable; for
connecting to MDI-X ports on hubs or other
switches, use “crossover” cable.
1 kilometer
100 meters
(See Note above on use of “straight-through”
and “cross-over” cables.)
• 412 meters for half-duplex connections
• 2 kilometers for full-duplex connections
Gigabit-SX
(Switch 1600M
only)
■Installation Location - Before installing the switch, plan its location and
orientation relative to other devices and equipment. In the front of the
switch, leave at least 7.6 cm (3 inches) of space for the twisted-pair and
fiber-optic cabling. In the back of the switch, leave at least 3.8 cm (1 1/2
inches) of space for the power cord. On the sides, leave at least 3 inches
for cooling.
2-4
850 nm multimode fiberoptic cables that are fitted
with SC connectors.
Install a switch module into the slot as shown in the illustration below. For
installation details, see the instructions in the manual that comes with the
module.
The slot cover can be removed with either a flat-bladed or Torx T-10 screwdriver. Retain the slot cover for future use.
Any of the supported switch modules can be installed in the slot in the
■
Switch 1600M.
■The module can be “hot swapped”, installed when the switch is powered
on and normally will be immediately operational. But, if the new module
is replacing a module of a different type that was previously installed in
the slot, the switch must be rebooted after the new module is installed.
See “Hot Swapping the Switch Module” on page 2-15.
■
Make sure the module is fully installed and that you screw in the
retaining screws to secure the module in place.
■If you do not install a module in the slot, make sure that the slot cover
plate is still attached over the slot for safe operation and proper switch
cooling.
Installing the Switch 1600M
and 2400M
Insert module into the guides and slide it
in until it stops. Then press in firmly until
the module “snaps” into place and is
flush with the face of the switch.
make sure you tighten the retaining
screws on the module
.
Then
2-5
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