HPE FlexFabric 7900 Series User manual

HPE FlexFabric 7900 Switch Series
Installation Guide
Part number: 5200-1869a
Document version: 6W107-20170424

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i
Contents
Preparing for installation····································································1
Safety recommendations···············································································································1
Examining the installation site·········································································································1
Temperature and humidity ······································································································2
Cleanliness ··························································································································2
EMI ····································································································································2
Laser safety ·························································································································3
Installation accessories·················································································································3
Installing the switch ··········································································5
Installing the switch in a 19-inch rack·······························································································5
Mounting brackets and cable management bracket······································································5
Rack mounting rail kit·············································································································8
Rack-mounting clearance requirements·····················································································9
Rack-mounting procedures at a glance···················································································· 10
Installing the installation accessories for the HPE 7904 switch or HPE 7904 TAA switch··················· 11
Installing the installation accessories for the HPE 7910 switch or HPE 7910 TAA switch··················· 13
Rack-mounting the HPE 7904 switch or HPE 7904 TAA switch···················································· 14
Rack-mounting the HPE 7910 switch or HPE 7910 TAA switch···················································· 17
Grounding the switch·················································································································· 20
Grounding the switch with a grounding strip ············································································· 20
Grounding the switch by using the PE wire of an AC power cord··················································21
Installing FRUs ··············································································23
Attaching an ESD wrist strap········································································································ 23
Installing switching fabric modules for the HPE 7910 switch or HPE 7910 TAA switch····························· 23
Installing one switching fabric module ····················································································· 24
Installing two switching fabric modules ···················································································· 24
Installing fan trays······················································································································ 25
Installing the HPE 7904 fan tray····························································································· 25
Installing the HPE 7910 fan tray····························································································· 26
Installing a power supply ············································································································· 28
Connecting the power cord ·········································································································· 30
Connecting an AC power cord to the switch·············································································· 30
Installing an LPU························································································································ 30
Verifying the installation ·············································································································· 32
Replacing FRUs·············································································33
Replacing a fan tray···················································································································· 33
Replacing the HPE 7904 fan tray···························································································· 33
Replacing the HPE 7910 fan tray···························································································· 34
Replacing a switching fabric module······························································································ 34
Replacing a power supply····································································································· 35
Replacing an LPU ··············································································································· 36
Accessing the switch for the first time ·················································38
Setting up the configuration environment························································································ 38
Connecting the console cable······································································································· 38
Setting terminal parameters ········································································································· 39
Powering on the switch ··············································································································· 39
Configuring the switch················································································································· 40
Configuring login authentication modes ··················································································· 40
Configuring the basic access function ····················································································· 40
Configuration example ········································································································· 41
Verifying the network configuration ························································································· 41
Connecting the switch to the network····························································································· 42
Connecting the switch to the network through an optical fiber ······················································42

ii
Testing connectivity···················································································································· 43
Setting up an IRF fabric···································································44
IRF fabric setup flowchart············································································································ 44
Planning IRF fabric setup ············································································································ 45
Planning IRF fabric size and the installation site········································································ 45
Identifying the master switch and planning IRF member IDs························································ 45
Planning IRF topology and connections··················································································· 46
Identifying physical IRF ports on the member switches·······························································46
Installing IRF member switches ···································································································· 46
Configuring basic IRF settings······································································································ 46
Connecting the physical IRF ports·································································································47
Verifying the IRF fabric configuration ····························································································· 47
Maintenance and troubleshooting ······················································48
Configuration terminal problems ··································································································· 48
No display on the configuration terminal ·················································································· 48
Garbled display on the configuration terminal ··········································································· 48
Power supply failure ··················································································································· 49
Fan tray failure ·························································································································· 49
Switching fabric module failure ····································································································· 50
LPU failure································································································································ 50
Interface failure·························································································································· 50
Document conventions and icons ······················································52
Conventions······························································································································ 52
Network topology icons ··············································································································· 53
Support and other resources·····························································54
Accessing Hewlett Packard Enterprise Support················································································ 54
Accessing updates····················································································································· 54
Websites ··························································································································· 55
Customer self repair ············································································································ 55
Remote support ·················································································································· 55
Documentation feedback ······································································································ 55
Appendix A Chassis views and technical specifications··························57
Chassis views ··························································································································· 57
HPE 7904/HPE 7904 TAA····································································································· 57
HPE 7910/HPE 7910 TAA····································································································· 58
Technical specifications ·············································································································· 59
Weights····························································································································· 59
Dimensions························································································································ 60
Ports and slots···················································································································· 60
Power consumptions············································································································ 61
Heat dissipation ·················································································································· 62
Temperature and humidity ···································································································· 62
Noise································································································································ 62
Other specifications···················································································································· 63
Cooling system·························································································································· 63
Cooling system for the HPE 7904 switch and HPE 7904 TAA switch············································· 63
Cooling system for the HPE 7910 switch and HPE 7910 TAA switch············································· 64
Appendix B FRUs and compatibility matrixes ·······································66
LPUs ······································································································································· 66
Switching fabric modules············································································································· 67
Power supplies·························································································································· 68
Fan trays·································································································································· 69
Transceiver modules ·················································································································· 70
Appendix C Ports and LEDs·····························································75
Ports········································································································································ 75

iii
Console port······················································································································· 75
Management Ethernet port···································································································· 75
USB port···························································································································· 75
LEDs ······································································································································· 75
HPE 7904 or HPE 7904 TAA chassis LEDs·············································································· 75
HPE 7910 or HPE 7910 TAA switching fabric module LEDs ························································ 77
LPU LEDs·························································································································· 78
Power supply LEDs ············································································································· 79
Index···························································································80

1
Preparing for installation
The HPE FlexFabric 7900 Switch Series includes the models in Table 1.
Table 1 HPE FlexFabric 7900 Switch Series models
Product code
HPE description
RMN
Alias
JG682A HPE FlexFabric 7904 Switch Chassis BJNGA-AC0012 HPE 7904
JG841A HPE FlexFabric 7910 Switch Chassis BJNGA-AC0013 HPE 7910
JH122A HPE FlexFabric 7904 TAA-compliant
Switch Chassis BJNGA-AC0012 HPE 7904 TAA
JH123A HPE FlexFabric 7910 TAA-compliant
Switch Chassis BJNGA-AC0013 HPE 7910 TAA
IMPORTANT:
For regulatory identification purposes, the switches are assigned
regulatory model numbers
(
RMNs). These regulatory numbers should not be confused with the marketing names HPE 7904,
HPE
7904 TAA, HPE 7910, and HPE 7910 TAA or the product codes JG682A, JH122A, JG841A,
and JH123A.
Safety recommendations
To avoid equipment damage and bodily injury, read the following safety recommendations before
installation. Note that the recommendations do not cover every possible hazardous condition.
•
Before cleaning the switch, remove 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.
•
Do not place the switch on an unstable case or desk. The switch might be severely damaged in
case of a fall.
•
Ensure good ventilation of the equipment room and keep the air inlet and outlet vents of the
switch free of obstruction.
•
Make sure the input 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 FRUs, including cards, power supplies, and fan trays, wear an ESD wrist strap to
avoid ESD damage. For information about wearing an ESD wrist strap, see "Attaching an ESD wrist
strap."
Examining the installation site
Make sure the installation site meets the following requirements:
•
Adequate clearance is reserved at the air inlet and outlet vents for ventilation.
•
The rack has a good ventilation system.
•
The rack has enough space to accommodate the switch. For information about switch
dimensions and requirements for the rack, see "Installing the switch."

2
•
Identify the hot aisle and cold aisle at the installation site, and make sure ambient air flows into
the switch from the cold aisle and exhausts to the hot aisle.
•
Identify the airflow designs of neighboring devices, and prevent hot air flowing out of the bottom
device from entering the top device.
•
The rack is sturdy enough to support the switch and its accessories.
•
The rack is reliably grounded.
To ensure correct operation and long service life of the switch, install it in an environment that meets
the requirements described in the following subsections.
Temperature and humidity
Maintain temperature and humidity in the equipment room as described in "Appendix A Chassis
views and technical specifications."
•
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.
•
High temperature can accelerate aging of insulation materials and significantly lower the
reliability and lifespan of the switch.
Cleanliness
Dust buildup on the chassis might 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 2 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 limits on salts, acids, and sulfides to eliminate corrosion and
premature aging of components, as shown in Table 3.
Table 3 Harmful gas limits in the equipment room
Gas
Maximum concentration (mg/m
3
)
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 the following ways:
•
A conduction pattern of capacitance coupling.

3
•
Inductance coupling.
•
Electromagnetic wave radiation.
•
Common impedance (including the grounding system) coupling.
To prevent EMI, use the following guidelines:
•
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 to make sure the EMI levels do not exceed the compliant range.
•
Use electromagnetic shielding when necessary. For example, use shielded interface cables.
•
To prevent signal ports from getting damaged by over-voltage or over-current caused by
lightning strikes, only route interface cables indoors.
Laser safety
WARNING
!
Do not stare into any fiber ports when
the switch has power.
The laser light emitted from the optical
fiber might hurt your eyes.
Installation accessories
Table 4 Installation accessories
Product
code
Description Quantity Applicable models
5189-7975
7904 mounting bracket kit
1 kit 7904 switch
5189-8696
7910 mounting bracket kit
1 kit 7910 switch
5185-8684
Rack mounting rail kit
1 kit 7904 switch
JH042A
HP FlexFabric 7910 Bottom-Support
Rails
1 kit 7910 switch

4
Product
code
Description Quantity Applicable models
5185-8965 M6 screw and floating nut 8 kits All 7900 switches
5184-6723
Grounding cable
1 All 7900 switches
5185-8765
ESD wrist strap
1 All 7900 switches
5185-9579 Grounding screw 2 All 7900 switches
5185-8676
Power supply filler module
As required All 7900 switches
5185-8748 Power supply removable cable tie As required All 7900 switches
5185-8627
Console cable
1 All 7900 switches
5185-8722
SFP/SFP+ dust plug
As required All 7900 switches
5187-9022
QSFP+ dust plug
As required All 7900 switches

5
Installing the switch
CAUTION:
Keep the tamper
-proof seal on a mounting screw on the HPE 7904 switch or HPE
7904 TAA switch
chassis
cover intact, and if you want to open the chassis, contact Hewlett Packard Enterprise for
permission. Otherwise, Hewlett Packard Enterprise shall not be liable for any consequence.
Figure 1 Hardware installation flow
IMPORTANT:
For
the HPE 7910 switch or HPE 7910 TAA switch, install switching fabric modules
before you install
fan trays.
Installing the switch in a 19-inch rack
Mounting brackets and cable management bracket
Mounting brackets are attached to the two sides of the switch chassis to secure the chassis to the
rack. The cable management bracket is used to manage cables for LPUs.
•
HPE 7904 switch and HPE 7904 TAA switch
Start
Install the switch
Install FRUs
Ground the switch
Connect the power
cords
Verify the installation
Power on the switch
Operating correctly? Power off the switch
No
Troubleshoot the
switch
Yes
End

6
The HPE 7904 switch and HPE 7904 TAA switch each come with a pair of mounting brackets
and a cable management bracket attached together, as shown in Figure 2.
Figure 2 Mounting bracket and cable management bracket kit for the HPE 7904 switch or
HPE 7904 TAA switch
(1) Cable management bracket
(2) Mounting bracket
•
HPE 7910 switch and HPE 7910 TAA switch
The HPE 7910 switch and HPE 7910 TAA switch each come with a pair of mounting
brackets, as shown in Figure 3.
Figure 3 Mounting brackets for the HPE 7910 switch or HPE 7910 TAA switch
No cable management bracket is provided with the HPE 7910 switch or HPE 7910 TAA
switch. As a best practice, use the HPE FlexFabric 7910 Cable Management Frame
(JH041A) as shown in Figure 4. It includes the mounting rail and cable frame. To purchase
the cable management frame, contact the Hewlett Packard Enterprise marketing personnel
or local representative.
12

7
Figure 4 HPE 7910 cable management frame
(1) Cable frame
(2) Mounting rail
(3) Screw
As shown in Figure 5, Figure 6, and Figure 7, the HPE 7910 cable management frame can
be in the following length if you attach the mounting rail to different positions on the cable
frame:
−90 mm (3.54 in).
−111.5 mm (4.39 in).
−150 mm (5.91 in).
Figure 5 Attaching the mounting rail to the cable frame (1)
Figure 6 Attaching the mounting rail to the cable frame (2)
1
2
3
90mm
(3.54in)
111.5mm
(4.39in)

8
Figure 7 Attaching the mounting rail to the cable frame (3)
Rack mounting rail kit
•
HPE 7904 switch and HPE 7904 TAA switch
A pair of chassis rails and a pair of slide rails are provided with the HPE 7904 switch or HPE
7904 TAA switch.
Figure 8 Rack mounting rail kit for the HPE 7904 switch or HPE 7904 TAA switch
(1) Chassis rail
(2) Slide rail
•
HPE 7910 switch and HPE 7910 TAA switch
No rack mounting rail kit is provided with the HPE 7910 switch or HPE 7910 TAA switch. As a
best practice, use the HPE FlexFabric 7910 Bottom-Support Rails (JH042A). The HPE 7910
bottom-support rails have an adjustment range of 630 mm (24.80 in) to 900 mm (35.43 in). The
bottom-support rails do not occupy rack space and apply to racks that have the distance
between the front and rear rack posts in the length range of the bottom-support rails. To
purchase the bottom-support rails, contact the Hewlett Packard Enterprise marketing personnel
or local representative.
150mm
(5.91in)
12

9
Figure 9 Left bottom-support rail
(1) Front mark
(2) Guide rail
(3) Installation hole
Rack-mounting clearance requirements
Table 5 Rack-mounting clearance requirements
Model
Router dimensions
Rack requirements
•HPE
7904
•HPE
7904 TAA
•Height—88.1 mm (3.47 in) (2 RU).
•Width—440 mm (17.32 in).
•Total depth—876 mm (34.49 in).
720 mm (28.35 in) for the chassis.
90 mm (3.54 in) for the cable
management bracket at the
chassis front.
66 mm (2.60 in) for the
components at the chassis rear.
•IEC-compliant.
•A minimum of 1 m (3.28 ft) in depth.
•607 mm (23.90 in) to 1014 mm (39.92
in) between the front and rear rack
posts.
•A minimum of 100 mm (3.94 in)
between the front rack post and the
front door.
•A minimum of 840 mm (33.07 in)
between the front rack post and the
rear door.
•HPE
7910
•HPE
7910 TAA
•Height—220 mm (8.66 in) (5 RU).
•Width—440 mm (17.32 in).
•Total depth—807.1 mm (31.78 in).
760 mm (29.92 in) for the chassis.
21.1 mm (0.83 in) for the card
ejector levels at the chassis front.
26 mm (1.02 in) for the
components at the chassis rear.
•IEC-compliant.
•A minimum of 1 m (3.28 ft) in depth.
•630 mm (24.80 in) to 900 mm (35.43
in) between the front and rear rack
posts.
•A minimum of 100 mm (3.94 in)
between the front rack post and the
front door.
•A minimum of 840 mm (33.07 in)
between the front rack post and the
rear door.
2 RU
1 RU (Rack Unit) = 44.45 mm (1.75 in)
32
1

10
Figure 10 HPE 7904 and HPE 7904 TAA dimensions
(1) Power supply handle
(2) Cable management bracket
(3) Fan tray handle
Figure 11 HPE 7910 and HPE 7910 TAA dimensions
(1) Fan tray handle
(2) Card handle
(3) Power supply handle
Rack-mounting procedures at a glance
You can install the HPE 7904 switch or HPE 7904 TAAswitch in a 19-inch rack by using the mounting
brackets and rack mounting rail kit as described in Figure 12.
Figure 12 Rack-mounting procedure for the HPE 7904 switch and HPE 7904 TAA switch
You can install the HPE 7910 switch or HPE 7910 TAAswitch in a 19-inch rack byusing the mounting
brackets and slide rails as described in Figure 13.
Figure 13 Rack-mounting procedure for the HPE 7910 switch and HPE 7910 TAA switch
To support the weight of the chassis, you can prepare a pair of slides rails or rack shelf yourself for
the switch. Make sure the slide rails or rack shelf has the following load-bearing capacities:
•
HPE 7904 switch or HPE 7904 TAA switch—A minimum of 40 kg (88.18 lb).
720mm (28.35 in) 90mm
(3.54 in)
66mm
(2.60 in)
132
760 mm (29.92 in) 21.1 mm
(0.83 in)
26 mm
(1.02 in)
3
2
1
Determine the mounting
position for the mounting
brackets
Attach the
mounting
brackets to
the switch
Attach the chassis
rails to the switch
Connect the
grounding cable to
the grounding point
Attach
the slide
rails to
the rack
Mount
the
switch in
the rack
Determine the mounting
position for the mounting
brackets
Attach the
mounting
brackets to
the switch
Connect the
grounding cable to
the grounding point
Attach
the slide
rails to
the rack
Mount
the
switch in
the rack

11
•
HPE 7910 switch or HPE 7910 TAA switch—A minimum of 70 kg (154.32 lb).
Installing the installation accessories for the HPE 7904 switch
or HPE 7904 TAA switch
The HPE 7904 switch and HPE 7904 TAA switch each have one front mounting position (near the
network ports) and one rear mounting position (near the power supplies). The switch also has one
primary grounding point (with a grounding sign) and one auxiliary grounding point. Determine the
positions for the mounting brackets and grounding cable before installation.
Figure 14 Installation positions for the mounting brackets and grounding cable
(1) Rear mounting position (power supply side)
(2) Primary grounding point
(3) Auxiliary grounding point
(4) Front mounting position (network port side)
Attaching the mounting brackets and chassis rails to the HPE 7904 switch or HPE 7904 TAA
switch
1. Align the screw holes in the mounting brackets with the screw holes in the mounting position, as
shown in Figure 15.
This example uses the rear mounting position.
2. Use the M4 countersunk screws supplied with the switch to attach the mounting brackets to the
chassis.
3. Determine the installation positions for the chassis rails based on the rack depth.
4. Align the screw holes in the chassis rails with the rail mounting holes in the chassis.
5. Use the M4 screws supplied with the switch to attach the chassis rails to the chassis, as shown
in Figure 15.
1
3
2
4

12
Figure 15 Attaching the mounting brackets and chassis rails to the HPE 7904 switch or HPE
7904 TAA switch
Connecting the grounding cable to the HPE 7904 switch or HPE 7904 TAA switch
CAUTION:
The primary grounding point and auxiliary grounding point are located
on the left side panel. If you
use one of these grounding points, you must
connect the grounding cable to the grounding point
before you mount the switch in the rack.
To connect the grounding cable to a chassis grounding point, for example, the primary grounding
point:
1. Unpack the grounding cable and grounding screws.
2. Use the grounding screws to attach the two-hole grounding lug of the grounding cable to the
grounding point, as shown in Figure 16.

13
Figure 16 Connecting the grounding cable to the HPE 7904 switch or HPE 7904 TAA switch
Installing the installation accessories for the HPE 7910 switch
or HPE 7910 TAA switch
The HPE 7910 switch and HPE 7910 TAA switch each have one front mounting position (near the
network ports) and one rear mounting position (near the power supplies). The switch also has one
primary grounding point (with a grounding sign) and one auxiliary grounding point. Determine the
positions for the mounting brackets and grounding cable before installation.
Figure 17 Installation positions for the mounting brackets and grounding cable
(1) Front mounting position (network port side)
(2) Auxiliary grounding point
(3) Primary grounding point
(4) Rear mounting position (power supply side)
12
34

14
Attaching the mounting brackets and grounding cable to the HPE 7910 switch or HPE 7910
TAA switch
CAUTION:
The primary grounding point and auxiliary grounding point are located
on the right side panel.
If you
use one of these grounding points, you must
connect the grounding cable to the grounding point
before you mount the switch in the rack.
To install the mounting brackets and grounding cable on the HPE 7910 switch or HPE 7910 TAA
switch:
1. Determine the installation positions for the mounting brackets and the grounding cable.
2. Align the screw holes in the mounting brackets with the screw holes in the mounting position, as
shown in Figure 18.
This example uses the front mounting position.
3. Use the M4 countersunk screws supplied with the switch to attach the mounting brackets to the
chassis.
4. Unpack the grounding cable and grounding screws.
5. Use the grounding screws to attach the two-hole grounding lug of the grounding cable to the
grounding point, as shown in Figure 18.
Figure 18 Attaching the mounting brackets and grounding cable to the HPE 7910 switch or
HPE 7910 TAA switch
Rack-mounting the HPE 7904 switch or HPE 7904 TAA
switch
Attaching the slide rails to the rack
1. Determine the position on the rack for installing the slide rails.
2. Install cage nuts (user-supplied) in the mounting holes in the rear rack posts.

15
3. Align the screw holes in one slide rail with the cage nuts in a rear post, and use screws (user
supplied) to attach the slide rail to the post, as shown in Figure 19.
4. Repeat the same steps to attach the other slide rail to the other rear post.
Keep the two slide rails at the same height.
Figure 19 Installing the slide rails
Mounting the HPE 7904 switch or HPE 7904 TAA switch in the rack
This task requires two people. To mount the switch in the rack:
1. Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.
2. Verify that the mounting brackets and chassis rails have been securely attached to the switch.
3. Verify that the slide rails have been correctly attached to the rear rack posts.
4. Install cage nuts (user-supplied) to the front rack posts and make sure they are at the same
level as the slide rails.
5. Supporting the bottom of the switch, align the chassis rails with the slide rails on the rack posts,
as shown in Figure 20. Work with another person to slide the chassis rails along the slide rails
until the mounting brackets are flush with the rack posts.
6. Use screws (user-supplied) to attach the mounting brackets to the rack, as shown in Figure 21.
To secure the switch in the rack, make sure the front ends of the slide rails reach out of the
chassis rails.