HP 3100-48 v2 User manual

HP 3100-48 v2 Switch
Installation Guide
Part number: 5998-7649a
Document version: 6W102-20150615

Legal and notice information
© Copyright 2015 Hewlett-Packard Development Company, L.P.
No part of this documentation may be reproduced or transmitted in any form or by any means without
prior written consent of Hewlett-Packard Development Company, L.P.
The information contained herein 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.
The only warranties for HP products and services are set forth in the express warranty statements
accompanying such products and services. Nothing herein should be construed as constituting an
additional warranty. HP shall not be liable for technical or editorial errors or omissions contained
herein.

i
Contents
Product overview·························································································································································· 1
3100-48 v2 Switch panel views ·····································································································································1
Preparing for installation ············································································································································· 2
Safety recommendations ··················································································································································2
Examining the installation site ·········································································································································2
Temperature/humidity ·············································································································································2
Cleanness··································································································································································3
EMI·············································································································································································3
Cooling requirements···············································································································································4
Laser safety································································································································································4
Installation tools·································································································································································4
Installation accessories ·····················································································································································5
Installing the switch······················································································································································ 6
Installing the switch in a 19-inch rack·····························································································································6
Mounting bracket kit ················································································································································7
Attaching the mounting brackets to the chassis ····································································································7
Rack-mounting a 3100-48 v2 switch ·····················································································································7
Mounting the switch on a workbench·····························································································································8
Grounding the switch ·······················································································································································9
Grounding cable ······················································································································································9
Grounding the switch with a grounding strip········································································································9
Grounding the switch by using the AC power cord·························································································· 11
Grounding the switch with a grounding conductor buried in the earth ground············································· 12
Connecting the power cord ·········································································································································· 13
Verifying the installation················································································································································ 13
Accessing the switch for the first time·······················································································································14
Setting up the configuration environment···················································································································· 14
Connecting the console cable ······································································································································ 14
Console cable························································································································································ 14
Connection procedure ·········································································································································· 14
Setting terminal parameters ·········································································································································· 15
Powering on the switch·················································································································································· 18
Checking before power-on··································································································································· 18
Powering on the switch········································································································································· 18
Changing the startup mode·································································································································· 20
Setting up an IRF fabric ·············································································································································23
IRF fabric setup flowchart·············································································································································· 23
Planning IRF fabric setup··············································································································································· 24
Planning IRF fabric size and the installation site································································································ 24
Identifying the master switch and planning IRF member IDs ············································································ 24
Planning IRF topology and connections ·············································································································· 25
Identifying physical IRF ports on the member switches ····················································································· 26
Planning the cabling scheme ······························································································································· 26
Configuring basic IRF settings······································································································································· 28
Connecting the physical IRF ports ································································································································ 28
Accessing the IRF fabric to verify the configuration ··································································································· 29

ii
Maintenance and troubleshooting····························································································································31
Password loss ································································································································································· 31
Console login password loss ······························································································································· 31
Boot ROM password loss ····································································································································· 31
Power system failure ······················································································································································ 31
Fan failure······································································································································································· 32
Configuration terminal problems·································································································································· 32
Appendix A Technical specifications························································································································33
Appendix B Ports and LEDs·······································································································································34
Ports ················································································································································································· 34
Console port ·························································································································································· 34
10/100Base-TX Ethernet port ······························································································································ 34
1000Base-T Ethernet port····································································································································· 34
1000Base-X SFP port ············································································································································ 35
Combo interface···················································································································································· 36
LEDs ················································································································································································· 36
System status LED··················································································································································· 36
Port mode LED························································································································································ 37
Seven-segment LED················································································································································ 37
10/100Base-TX Ethernet port LED······················································································································· 38
1000Base-T Ethernet port LED ····························································································································· 39
1000Base-X SFP port LED····································································································································· 39
Support and other resources ·····································································································································40
Contacting HP ································································································································································ 40
Subscription service ·············································································································································· 40
Related information························································································································································ 40
Documents······························································································································································ 40
Websites································································································································································· 40
Conventions ···································································································································································· 41
Index ···········································································································································································43

1
Product overview
IMPORTANT:
For regulatory identification purposes, the 3100-48 v2 switch is assigned a regulatory model number
(RMN) BJNGA-AD0015. This regulatory number should not be confused with the marketing name HP
3100-48 v2, or product code JG315A or JG315B.
3100-48 v2 Switch panel views
Figure 1 3100-48 v2 front panel
(1) 10/100Base-TX auto-sensin
g
Ethernet port (2) 10/100Base-TX Ethernet port LED
(3) 1000Base-X SFP combo port (4) 1000Base-X SFP combo port LED
(5) 1000Base-X SFP port (6) 1000Base-X SFP port LED
(7) Seven-se
g
ment LED (8) System status LED (PWR)
(9) Port mode LED (Mode) (10) Port LED mode switching button
(11) Console port (12) 1000Base-T Ethernet port LED
(13) 1000Base-T Ethernet port
Figure 2 3100-48 v2 rear panel
(1)
A
C-input power receptacle (2) Groundin
g
screw

2
Preparing for installation
Safety recommendations
To avoid any equipment damage or bodily injury caused by improper use, read the following safety
recommendations before installation. Note that the recommendations do not cover every possible
hazardous condition.
•Before cleaning the switch, unplug all power cords from the switch. Do not clean the switch with wet
cloth or liquid.
•Do not place the switch near water or in a damp environment. Prevent water or moisture from
entering the switch chassis.
•Do not place the switch on an unstable case or desk. The switch might be severely damaged in case
of a fall.
•Ensure proper ventilation of the equipment room and keep the air inlet and outlet vents of the switch
free of obstruction.
•Connect the yellow-green protection grounding cable before power-on.
•Make sure that the operating voltage is in the required range.
•To avoid electrical shocks, do not open the chassis while the switch is operating or when the switch
is just powered off.
•When replacing transceiver modules, wear an ESD-preventive wrist strap to avoid damaging the
units.
Examining the installation site
The HP 3100-48 v2 Switch must be used indoors. You can mount the switch in a rack or on a workbench,
but make sure:
•Adequate clearance is reserved at the air inlet and exhaust vents for ventilation.
•The rack or workbench has a good ventilation system.
•The rack is sturdy enough to support the switch and its accessories.
•The rack or workbench is well earthed.
To ensure normal operation and long service life of your switch, install it in an environment that meets the
requirements described in the following subsections.
Temperature/humidity
Maintain appropriate temperature and humidity in the equipment room.
•Lasting high relative humidity can cause poor insulation, electricity creepage, mechanical property
change of materials, and metal corrosion.
•Lasting low relative humidity can cause washer contraction and ESD and bring problems including
loose captive screws and circuit failure.

3
•High temperature can accelerate the aging of insulation materials and significantly lower the
reliability and lifespan of the switch.
For the temperature and humidity requirements, see “Appendix A Technical specifications.”
Cleanness
Dust buildup on the chassis may result in electrostatic adsorption, which causes poor contact of metal
components and contact points, especially when indoor relative humidity is low. In the worst case,
electrostatic adsorption can cause communication failure.
Table 1 Dust concentration limit in the equipment room
Substance Concentration limit (particles/m³)
Dust ≤3 x 104 (no visible dust on the tabletop over three days)
NOTE:
Dust diameter ≥5 μm
The equipment room must also meet strict limits on salts, acids, and sulfides to eliminate corrosion and
premature aging of components, as shown in Table 2.
Table 2 Harmful gas limits in the equipment room
Gas Maximum concentration (mg/m3)
SO20.2
H2S 0.006
NH30.05
Cl20.01
EMI
All electromagnetic interference (EMI) sources, from outside or inside of the switch and application
system, adversely affect the switch in a conduction pattern of capacitance coupling, inductance coupling,
electromagnetic wave radiation, or common impedance (including the grounding system) coupling. To
prevent EMI, take the following actions:
•If AC power is used, use a single-phase three-wire power receptacle with protection earth (PE) to
filter interference from the power grid.
•Keep the switch far away from radio transmitting stations, radar stations, and high-frequency
devices.
•Use electromagnetic shielding, for example, shielded interface cables, when necessary.
•Route interface cables only indoors to prevent signal ports from getting damaged by overvoltage or
overcurrent caused by lightning strikes.

4
Cooling requirements
The built-in fan in the 3100-48 v2 switch blows air from the left to the right of the chassis for heat
dissipation, as shown in Figure 3.
Figure 3 Airflow through the 3100-48 v2 switch
(1) Air intake (2) Air exhaust
For adequate heat dissipation, plan the installation site according to the airflow of your switch, and
adhere to the following requirements:
•Leave a clearance of at least 10 cm (3.94 in) around the air intake and exhaust vents.
•Consider the heat dissipation of the installation site when determining air-conditioning
requirements to ensure that cool air can enter the switch.
•Make sure the hot air generated by equipment at the bottom of the rack is not drawn in the intake
of the equipment above.
•The installation site has a good cooling system.
Laser safety
The 3100-48 v2 switch is a Class 1 laser device.
CAUTION:
Do not stare into any fiber port when the switch has power. The laser li
g
ht emitted from the optical fiber
may hurt your eyes.
Installation tools
•Flat-blade screwdriver
•Phillips screwdriver
•ESD wrist strap
All these installation tools are user supplied.
1
2

5
Installation accessories
Table 3 Installation accessories
Product code Description Quantity Applicable models
5066-0850
1 U mounting bracket kit
(including one pair of mounting
brackets and eight M4
countersunk screws)
1 kit 3100-48 v2 switch
N/A
M6 screw and floating nut
User supplied 3100-48 v2 switch
5184-6711
Grounding cable
1 3100-48 v2 switch
5189-7866
Grounding screw
1 3100-48 v2 switch
5187-9151
Removable cable tie
1 3100-48 v2 switch
5185-8627
Console cable
1 3100-48 v2 switch
5185-8722
SFP/SFP+ dust plug
Optional 3100-48 v2 switch
5184-7298
Rubber feet
1 3100-48 v2 switch


6
Installing the switch
W
ARNING!
Keep the tamper-proof seal on a mountin
g
screw on the chassis cover intact, and if you want to open the
chassis, contact your local HP agent for permission. Otherwise, HP shall not be liable for any consequence
caused thereby.
Figure 4 Hardware installation flow
Installing the switch in a 19-inch rack
The 3100-48 v2 switch is available with one pair of mounting brackets, as shown in Figure 5.
Start
Install the switch to a
19-in rack or
workbench
Ground the switch
Connect the power cord
Verify the installation
Power on the switch
Operating properly?
End
Power off the switch
Troubleshoot the
switch
Yes
No

7
Mounting bracket kit
Figure 5 Mounting bracket kit
Attaching the mounting brackets to the chassis
The 3100-48 v2 switch provides one front mounting position and one rear mounting position. You can
install the mounting brackets as needed.
1. Wear an ESD-preventive wrist strap, and make sure that the wrist strap makes good skin contact
and is well grounded.
2. Align one mounting bracket with the screw holes in the front-mounting position (Figure 6) or the
rear-mounting position (Figure 7)..
3. Use M4 screws (supplied with the switch) to fix the mounting bracket to the switch chassis.
4. Repeat the proceeding steps to attach the other mounting bracket to the chassis.
Figure 6 1U mounting bracket front mounting position
Figure 7 1U mounting bracket rear mounting position
Rack-mounting a 3100-48 v2 switch
This installation task requires two persons. To mount the switch in a rack:

8
1. Wear an ESD-preventive wrist strap and make sure it makes good skin contact and is well
grounded.
2. Check that the mounting brackets have been securely attached to the switch chassis.
3. Install cage nuts (user-spplied) in the mounting holes in the rack posts.
4. One person holds the switch chassis and aligns the mounting brackets with the mounting holes in
the rack posts, and the other person fixes the mounting brackets with anti-rust screws (user-supplied)
to the rack.
5. Check that the switch chassis is horizontal and tighten the screws.
Figure 8 Mount a 3100-48 v2 switch in a rack
Mounting the switch on a workbench
If a standard 19-inch rack is not available, you can place a 3100-48 v2 switch on a clean, flat workbench,
as follows:
1. Check that the workbench is sturdy and well grounded.
2. Place the switch with bottom up, and clean the round holes in the chassis bottom with dry cloth.
3. Attach the rubber feet to the four round holes in the chassis bottom.
4. Place the switch with upside up on the workbench.

9
IMPORTANT:
•Ensure good ventilation and 10 cm (3.9 in) of clearance around the chassis for heat dissipation.
•Avoid placing heavy objects on the switch.
Grounding the switch
W
ARNING!
Correctly connecting the switch grounding cable is crucial to lightning protection and EMI protection.
NOTE:
The power and grounding terminals in this section are for illustration only.
The power input end of the switch has a noise filter, whose central ground is directly connected to the
chassis to form the chassis ground (commonly known as PGND). You must securely connect this chassis
ground to the earth so the faradism and leakage electricity can be safely released to the earth to
minimize EMI susceptibility of the switch.
You can ground the switch in one of the following ways, depending on the grounding conditions
available at the installation site:
•Grounding the switch with a grounding strip
•Grounding the switch by using the AC power cord
•Grounding the switch with a grounding conductor buried in the earth ground
Grounding cable
The 3100-48 v2 Switch is provided with a yellow-green grounding cable. One end of the cable has an
OT terminal, and the other end is naked and soldered, as shown in Figure 9.
Figure 9 Grounding cable
(1) OT terminal of the
g
roundin
g
cable
Grounding the switch with a grounding strip
When a grounding strip is available at the installation site, connect the grounding cable to the
grounding strip.

10
CAUTION:
•The supplied grounding cable of the 3100-48 v2 Switch does not have an auxiliary OT terminal.
•Connect the
g
roundin
g
cable to the earthin
g
system in the equipment room. Do not connect it to a fire
main or lightning rod.
Connecting the grounding cable to the switch
Follow these steps to connect the grounding cable:
1. Remove the grounding screw on the rear panel of the switch chassis.
2. Attach the grounding screw to the OT terminal of the grounding cable.
3. Use a screwdriver to fasten the grounding screw into the grounding screw hole.
Figure 10 Connect the grounding cable to the grounding hole of switch
(1) Chassis rear panel (2) Groundin
g
si
g
n
(3) Groundin
g
hole (4) OT terminal
(5) Grounding cable (6) Grounding screw
Connecting the grounding cable to a grounding strip
Follow these steps to connect the grounding cable to a grounding strip:
1. Remove the hex nut from the grounding strip.
2. Cut the grounding cable to a proper length according to the distance between the switch and the
grounding strip.
3. Make the connector on the grounding cable:
•If you have an OT terminal, follow callout A in Figure 11to make the connector: Peel 5 mm (0.20
in) of insulation sheath by using a wire stripper, and then insert the naked metal part through the
insulation covering into the end of the OT terminal. Secure the metal part of the cable to the OT
terminal with a crimper, and then cover it with the insulation covering. Then heat the insulation
covering with a blower to make it completely cover the metal part.

11
•If you do not have an OT terminal, follow callout B in Figure 11to make the connector: Peel the
insulation sheath by an appropriate length by using a wire stripper, and then bend the naked metal
part.
4. Connect the made connector to the grounding post of the grounding strip, and then fasten it with
a hex nut, as shown in Figure 12.
Figure 11 Make the grounding cable connector
Figure 12 Connect the grounding cable to a grounding strip
(1) Groundin
g
post (2) Groundin
g
strip
(3) Grounding cable (4) Hex nut
Grounding the switch by using the AC power cord
If the installation site has no grounding strips, you can ground an AC-powered switch through the
protective earth (PE) wire of the power cord, but must make sure:
•The power cord has a PE terminal.
•The ground contact in the power outlet is securely connected to the ground in the power distribution
room or on the AC transformer side.
•The power cord is securely connected to the power outlet.
(A)
(B)
12
3
4
3

12
NOTE:
If the
g
round contact in the power outlet is not connected to the
g
round, report the problem and reconstruc
t
the grounding system.
Figure 13 Ground through the PE wire of the AC power supply
(1) Three-wire AC power cable (2) Chassis rear panel
Grounding the switch with a grounding conductor buried in the
earth ground
If the installation site has no grounding strips, but earth ground is available, hammer a 0.5 m (1.64 ft) or
longer angle iron or steel tube into the earth ground to serve as a grounding conductor.
The dimensions of the angle iron must be at least 50 × 50 × 5 mm (1.97 × 1.97 × 0.20 in). The steel tube
must be zinc-coated and its wall thickness must be at least 3.5 mm (0.14 in).
Weld the yellow-green grounding cable to the angel iron or steel tube and treat the joint for corrosion
protection.
Figure 14 Ground the switch by burying the grounding conductor into the earth ground
(1) Groundin
g
screw (2) Groundin
g
cable (3) Earth
(4) Joint (5) Groundin
g
conductor (6) Cassis rear panel
2
3
4
5
1
6

13
Connecting the power cord
CAUTION:
Before powering on the switch, you must connect the power cord and make sure the switch is well
grounded.
Follow these steps to connect an AC power cord:
1. Wear an ESD-preventive wrist strap, and make sure the wrist strap makes good skin contact and
is well grounded.
2. Insert the plug of the AC power cord into the AC power receptacle (see Figure 15).
3. Connect the other end of the AC power cord to the AC power source.
4. Check the power LED (PWR) on the front panel. If the LED is on, the power cord is properly
connected.
Figure 15 Connect the AC power cord
Verifying the installation
After you complete the installation, verify that:
•There is enough space for heat dissipation around the switch, and the rack or workbench is stable.
•The grounding cable is securely connected.
•The correct power source is used.
•The power cords are properly connected.
•All the interface cables are cabled indoors. If any cable is routed outdoors, verify that the socket
strip with lightning protection and lightning arresters for network ports have been properly
connected.

14
Accessing the switch for the first time
Setting up the configuration environment
The first time you access the switch you must use a console cable to connect a console terminal, for
example, a PC, to the console port on the switch.
Figure 16 Connect the console port to a terminal
Connecting the console cable
Console cable
A console cable is an 8-core shielded cable, with a crimped RJ-45 connector at one end for connecting
to the console port of the switch, and a DB-9 female connector at the other end for connecting to the
serial port on the console terminal.
Figure 17 Console cable
Connection procedure
To connect a terminal, for example, a PC, to the switch:

15
1. Plug the DB-9 female connector of the console cable to the serial port of the PC.
2. Connect the RJ-45 connector to the console port of the switch.
W
ARNING!
•Identify the mark on the console port to ensure that you are connecting to the correct port.
•The serial ports on PCs do not support hot swapping. If the switch has been powered on, connect the
console cable to the PC before connecting to the switch, and when you disconnect the cable, first
disconnect from the switch.
Setting terminal parameters
To configure and manage the switch, you must run a terminal emulator program on the console terminal.
The following are the required terminal settings:
•Bits per second—9,600
•Data bits—8
•Parity—None
•Stop bits—1
•Flow control—None
•Emulation—VT100
To set terminal parameters, for example, on a Windows XP HyperTerminal:
1. Select Start > All Programs > Accessories > Communications > HyperTerminal.
The Connection Description dialog box appears.
2. Enter the name of the new connection in the Name field and click OK.
Figure 18 Connection description
3. Select the serial port to be used from the Connect using list, and click OK.

16
Figure 19 Set the serial port used by the HyperTerminal connection
4. Set Bits per second to 9600, Data bits to 8, Parity to None, Stop bits to 1, and Flow control to None,
and click OK.
Figure 20 Set the serial port parameters
5. Select File > Properties in the HyperTerminal window.