HPE FlexFabric 5950 Series User manual

HPE FlexFabric 5950 Switch Series
Installation Guide
Document version: draft

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i
Contents
Preparing for installation·················································································1
Safety recommendations ···································································································································1
Examining the installation site····························································································································2
Temperature/humidity································································································································2
Cleanliness·················································································································································2
EMI·····························································································································································3
Laser safety················································································································································3
Installation tools ·················································································································································3
Installing the switch·························································································4
Installing the switch in a 19-inch rack ················································································································4
Installation accessories······························································································································5
Mounting brackets, chassis rails, and grounding cable installation positions ············································6
Installation methods···································································································································7
Rack-mounting the switch by using mounting brackets and rack mounting rail kit····································8
Rack-mounting the switch by using only mounting brackets····································································11
Grounding the switch ·······································································································································13
Grounding the switch with a grounding strip····························································································13
Grounding the switch by using the AC power cord··················································································14
Installing/removing fan trays ····························································································································15
Installing a fan tray···································································································································15
Removing a fan tray·································································································································16
Installing/removing power modules··················································································································17
Installing a power module ························································································································17
Removing a power module ······················································································································18
Connecting the power cords ····························································································································19
Connecting an AC power cord·················································································································20
Connecting a DC power cord···················································································································20
Verifying the installation···································································································································21
Accessing the switch for the first time···························································22
Setting up the configuration environment ········································································································22
Connecting the console cable··························································································································22
Connecting the mini USB console cable··································································································23
Setting terminal parameters·····························································································································25
Powering on the switch····································································································································25
Setting up an IRF fabric················································································27
IRF fabric setup flowchart ································································································································27
Planning IRF fabric setup·································································································································28
Planning IRF fabric size and the installation site······················································································28
Identifying the master switch and planning IRF member IDs···································································28
Planning IRF topology and connections···································································································29
Identifying physical IRF ports on the member switches···········································································30
Planning the cabling scheme···················································································································30
Configuring basic IRF settings·························································································································32
Connecting the physical IRF ports···················································································································32
Accessing the IRF fabric to verify the configuration·························································································32
Maintenance and troubleshooting·································································34
Power module failure ·······································································································································34
Symptom··················································································································································34
Solution····················································································································································34
Fan tray failure·················································································································································34
Symptom··················································································································································34
Solution····················································································································································34
Configuration terminal display problems··········································································································35

ii
No display ················································································································································35
Garbled display········································································································································35
Appendix A Chassis views and technical specifications·······························36
Chassis views ··················································································································································36
HPE FlexFabric 5950 32QSFP28/HPE FlexFabric 5950 32QSFP28 TAA··············································36
Technical specifications···································································································································37
Appendix B FRUs ·························································································39
Power modules ················································································································································39
Fan trays··························································································································································39
Appendix C Ports and LEDs·········································································41
Ports·································································································································································41
Console port·············································································································································41
Management Ethernet port ······················································································································41
100-Megabit SFP modules·······················································································································42
USB port···················································································································································42
SFP+ port·················································································································································42
QSFP28 port············································································································································44
LEDs ································································································································································47
System status LED···································································································································47
QSFP28 port LED····································································································································47
SFP+ port LED·········································································································································47
Management Ethernet port LEDs·············································································································48
Fan tray alarm LEDs································································································································48
Appendix D Cooling system··········································································49

1
Preparing for installation
The HPE FlexFabric 5950 Switch Series includes the models and provides power supplies and fan
trays in Table 1.
Table 1 HPE FlexFabric 5950 Switch Series models and power supplies
Product code HPE description Alias
JH321A HPE FlexFabric 5950 32QSFP28 Switch HPE FlexFabric 5950 32QSFP28
JH322A HPE FlexFabric 5950 32QSFP28
TAA-compliant Switch HPE FlexFabric 5950 32QSFP28 TAA
JC680A HPE A58x0AF 650W AC Power Supply 650W AC power supply
JC681A HPE A58x0AF 650W DC Power Supply 650W DC power supply
JH389A HPE X712 Bck(pwr)-Frt(prt) HV2 Fan Tray HPE X712 HV2 fan tray
JH388A HPE X711 Frt(prt)-Bck(pwr) HV2 Fan Tray HPE X711 HV2 fan tray
For regulatory identification purposes, the HPE FlexFabric 5950 32QSFP28 and HPE FlexFabric
5950 32QSFP28 TAA products are assigned Regulatory Model Number (RMN). The Regulatory
Model Number for these products is listed below. This regulatory number should not be confused
with the marketing names HPE FlexFabric 5950, or product numbers JH321A and JH322A.
Product code RMN Description
JH321A BJNGA-AD0065 HPE FlexFabric 5950 32QSFP28 Switch
JH322A BJNGA-AD0065 HPE FlexFabric 5950 32QSFP28
TAA-compliant Switch
Safety recommendations
To avoid any equipment damage or bodily injury caused by incorrect use, read the following safety
recommendations before installation. Note that the recommendations do not cover every possible
hazardous condition.
x
Before cleaning the switch, remove all power cords from the switch. Do not clean the switch
with wet cloth or liquid.
x
Do not place the switch near water or in a damp environment. Prevent water or moisture from
entering the switch chassis.
x
Do not place the switch on an unstable case or desk. The switch might be severely damaged in
case of a fall.
x
Ensure good ventilation of the equipment room and keep the air inlet and outlet vents of the
switch free of obstruction.
x
Connect the yellow-green protection grounding cable before power-on.
x
Make sure the operating voltage is in the required range.
x
To avoid electrical shocks, do not open the chassis while the switch is operating or when the
switch is just powered off.
x
When replacing field replaceable units (FRUs), including power modules and fan trays, wear an
ESD wrist strap to avoid damaging the units.

2
Examining the installation site
The switch must be used indoors.
Mount your switch in a rack and verify the following items:
x
Adequate clearance is reserved at the air inlet and outlet vents for ventilation.
x
The rack has a good ventilation system.
x
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.
x
Identify the airflow designs of neighboring devices, and prevent hot air flowing out of the
neighboring devices from entering the top device.
x
The rack is sturdy enough to support the switch and its accessories.
x
The rack is reliably grounded.
To ensure correct operation and long service life of your switch, installit in an environment that meets
the requirements described in the following subsections.
Temperature/humidity
Maintain appropriate temperature and humidity in the equipment room.
x
Lasting high relative humidity can cause poor insulation, electricity leakage, mechanical
property change of materials, and metal corrosion.
x
Lasting low relative humidity can cause washer contraction and ESD and cause problems
including loose mounting screws and circuit failure.
x
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 for the switch, see "Technical specifications."
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 ȝm
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/m3)
SO20.2
H2S 0.006

3
Gas Maximum concentration (mg/m3)
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:
x
A conduction pattern of capacitance coupling.
x
Inductance coupling.
x
Electromagnetic wave radiation.
x
Common impedance (including the grounding system) coupling.
To prevent EMI, perform the following tasks:
x
If AC power is used, use a single-phase three-wire power receptacle with protection earth (PE)
to filter interference from the power grid.
x
Keep the switch far away from radio transmitting stations, radar stations, and high-frequency
devices.
x
Use electromagnetic shielding, for example, shielded interface cables, when necessary.
Laser safety
WARNING!
xThe switch is a Class 1 laser device.
xDo not stare into any fiber port when the switch has power. The laser light emitted from the optical
fiber might hurt your eyes.
Installation tools
No installation tools are provided with the switch. Prepare the following tools yourself:
x
Phillips screwdriver.
x
ESD wrist strap.
x
Marker.

4
Installing the switch
CAUTION:
Keep the tamper-proof seal on a mounting screw on the 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 caused thereby.
Figure 1 Hardware installation flow
Installing the switch in a 19-inch rack
IMPORTANT:
To install the switch in a 19-inch rack, make sure the rack has a minimum depth of 1000 mm (39.37
in) so that the rack door can be closed easily.

5
Installation accessories
Table 4 Installation accessories
Switch
model Mounting brackets Rack mounting rail kit
HPE
FlexFabric
5950
A pair of 1U mounting
brackets. See Figure 2.
xA pair of 1U long slide rails and one pair of chassis
rails. See Figure 3.
x(Optional.) A pair of 1U short slide rails and one pair
of chassis rails. See Figure 4.
Figure 2 Mounting brackets for the HPE FlexFabric 5950 switch
Figure 3 1U long slide rail and chassis rail
(1) Chassis rail (2) Long slide rail
Figure 4 1U short slide rail and chassis rail
(1) Chassis rail (2) Short slide rail
1 2

6
Mounting brackets, chassis rails, and grounding cable
installation positions
The HPE FlexFabric 5950 switches provides the following installation positions on the chassis sides
for the installation accessories:
x
Mounting brackets—Power module-side mounting position, port-side mounting position, and
middle-mounting position.
x
Chassis rails—Three installation positions at the power module side and three at the port side.
x
Grounding cable—A primary grounding point (with a grounding sign) and an auxiliary
grounding point.
Select installation positions for the mounting brackets, chassis rails, and grounding cable as
required.
Figure 5 Mounting brackets and grounding cable installation positions on the HPE
FlexFabric 5950 32QSFP28/HPE FlexFabric 5950 32QSFP28 TAA
(1) Power module-side mounting position (2) Primary grounding point
(3) Middle-mounting position (4) Auxiliary grounding point
(5) Port-side mounting position
Figure 6 Chassis rail mounting positions on the HPE FlexFabric 5950 32QSFP28/HPE
FlexFabric 5950 32QSFP28 TAA
(1) Chassis rail installation position 1 (2) Chassis rail installation position 2
(3) Chassis rail installation position 3 (4) Chassis rail installation position 4

7
(5) Chassis rail installation position 5 (6) Chassis rail installation position 6
Installation methods
Table 5 Installation methods
Installation method Description Installation
procedure
Using mounting
brackets, chassis rails,
and slide rails
You can attach the mounting brackets to the power
module-side mounting position or the port-side
mounting position as required.
xFollow the installation flow described in Figure
7for the installation.
xMake sure the distance between the front and
rear posts of the rack meets the requirements
described in Table 6.
See "Rack-mounting the
switch by using mounting
brackets and rack
mounting rail kit."
Using only mounting
brackets
You can attach the mounting brackets only to the
middle-mounting position. Follow the installation
flow described in Figure 8 for the installation.
See "Rack-mounting the
switch by using only
mounting brackets."
Figure 7 Rack-mounting procedure by using mounting brackets, chassis rails, and slide rails
Figure 8 Rack-mounting procedure by using only mounting brackets
NOTE:
If a rack shelf is available, you can put the switch on the rack shelf, slide the switch to an appropriate
location, and attach the switch to the rack with the mounting brackets.
To rack-mount the switch, the distance between the front and rear posts of the rack must meet the
requirements described in Table 6.
Table 6 Distance requirements between the front and rear rack posts
Switch model Installation method
Minimum distance
between the front and
rear rack posts
Maximum distance
between the front and
rear rack posts
HPE FlexFabric
5950
Using the mounting
brackets, long slide rails,
and chassis rails 621 mm (24.45 in) 934 mm (36.77 in)
Using the mounting
brackets, short slide rails,
and chassis rails 401 mm (15.79 in) 714 mm (28.11 in)

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Rack-mounting the switch by using mounting brackets and
rack mounting rail kit
Attaching the mounting brackets and chassis rails to the chassis
1. Place the wide flange of the mounting bracket against the chassis side panel. Align the
mounting bracket installation holes with the screw holes in the chassis. Use M4 screws
(provided) to attach the mounting bracket to the chassis.
{To install the mounting brackets at the power module-side mounting position, see Figure 9.
{To install the mounting brackets at the port-side mounting position, see Figure 10.
2. Determine the chassis rail installation position:
{If the mounting brackets are installed at the power module-side mounting position, install
the chassis rails at one of the three chassis rail installation positions at the power module
side.
{If the mounting brackets are installed at the network port-side mounting position, install the
chassis rails at one of the three chassis rail installation positions at the port side.
3. Place the chassis rail against the chassis side panel. Align the chassis rail installation holes with
the screw holes. Use M4 screws (provided) to attach the chassis rail to the chassis.
NOTE:
Attach the mounting brackets and chassis rails to both sides of the chassis in the same way.
Figure 9 Attaching the mounting brackets and chassis rails to the HPE FlexFabric 5950
32QSFP28/HPE FlexFabric 5950 32QSFP28 TAA switch (power module-side mounting
position for the mounting brackets)

9
Figure 10 Attaching the mounting brackets and chassis rails to the HPE FlexFabric 5950
32QSFP28/HPE FlexFabric 5950 32QSFP28 TAA switch (network port-side mounting position
for the mounting brackets)
Connecting the grounding cable to the chassis
CAUTION:
The primary grounding point and auxiliary grounding point are located on the left panel of the
chassis. 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 grounding point:
1. Choose a grounding point as required.
This example uses the primary grounding point.
2. Unpack the grounding cable and grounding screws.
3. Use two grounding screws to attach the two-hole grounding lug of the grounding cable to the
grounding holes at the grounding point. Use a screwdriver to tighten the screws. See Figure 9.
Figure 11 Attaching the grounding cable to the primary grounding point on the HPE
FlexFabric 5950 32QSFP28/HPE FlexFabric 5950 32QSFP28 TAA switch
Attaching the slide rails to the rack
1. Identify the slide rail installation position in the rack.
2. Install cage nuts (user-supplied) in the mounting holes in the rack posts.
3. Align the screw holes in one slide rail with the cage nuts in a rear rack post, and use screws
(user-supplied) to attach the slide rail to the post, as shown in Figure 12.
4. Repeat the preceding steps to attach the other slide rail to the other rear rack post.
Keep the two slide rails at the same height so the slide rails can attach into the chassis rails.

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Figure 12 Installing the 1U slide rails
Mounting the 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
chassis.
3. Verify that the slide rails have been correctly attached to the rear rack posts.
4. Attach cage nuts (user-supplied) to the front rack posts and make sure they are at the same
level as the slide rails.
5. One person performs the following operations:
a. Supporting the bottom of the switch, aligns the chassis rails with the slide rails on the rack
posts.
b. Pushes the switch slowly to slide the chassis rails along the slide rails until the mounting
brackets are flush with the rack posts.
6. Another person uses screws (user-supplied) to attach the mounting brackets to the rack.
To secure the switch in the rack, make sure the front ends of the slide rails reach out of the
chassis rails.

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Figure 13 Mounting the HPE FlexFabric 5950 32QSFP28/HPE FlexFabric 5950 32QSFP28 TAA
switch in the rack (power module-side mounting position for the mounting brackets)
Figure 14 Mounting the HPE FlexFabric 5950 32QSFP28/HPE FlexFabric 5950 32QSFP28 TAA
switch in the rack (Port-side mounting position for the mounting brackets)
Rack-mounting the switch by using only mounting brackets
Attaching mounting brackets to the switch
To rack-mount the switch by using only mounting brackets, you can attach the mounting brackets
only to the middle-mounting position.

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To attach the mounting bracket to the middle mounting position:
1. Place the wide flange of a mounting bracket against the chassis side panel. Align the slide rail
installation holes with the screw holes at the middle mounting position.
2. Use M4 screws to secure the mounting bracket to the switch.
3. Perform the same steps to attach another mounting bracket to the other side of the switch.
Figure 15 Attaching the mounting bracket to the middle mounting position (power module
side at the front)
Connecting the grounding cable to the switch
For more information, see "Connecting the grounding cable to the chassis."
Installing the switch in the rack
1. Wear an ESD wrist strap and make sure the strap makes good skin contact and is reliably
grounded.
2. Determine the switch installation position in the rack. Attach cage nuts to the square holes in the
rack post.
3. Verify that the mounting brackets have been attached to the two sides of the switch.
4. One person supports the bottom of the switch and moves the switch to the planned installation
position in the rack.
5. Another person uses screws (user-supplied) to attach the mounting brackets to the rack.

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Figure 16 Installing the HPE FlexFabric 5950 32QSFP28/HPE FlexFabric 5950 32QSFP28 TAA
switch in the rack (with the power module side at the front)
Grounding the switch
WARNING!
Correctly connecting the switch grounding cable is crucial to lightning protection and EMI protection.
The power input end of theswitch 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 a switch by using a grounding strip at the installation site or the AC power cord
connected to the switch.
NOTE:
The power and grounding terminals in this section are for illustration only.
Grounding the switch with a grounding strip
WARNING!
Connect the grounding cable to the grounding system in the equipment room. Do not connect it to a
fire main or lightning rod.
If a grounding strip is available at the installation site, connect the grounding cable to the grounding
strip.
To connect the grounding cable:
1. Attach the two-hole grounding lug of the grounding cable to a grounding point on the chassis.
For more information, see "Connecting the grounding cable to the chassis."

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2. Remove the hex nut of a grounding post on the grounding strip.
3. Attach the ring terminal of the grounding cable to the grounding post on the grounding strip, and
secure the ring terminal to the grounding post with the hex nut.
Figure 17 Connecting the grounding cable to a grounding strip
(1) Hex nut (2) Ring terminal
(3) Grounding post (4) Grounding strip
Grounding the switch by using the AC power cord
If the installation site does not have grounding strips, you can ground anAC-powered switch through
the protective earth (PE) wire of the power cord. Make sure the following requirements are met:
x
The power cord has a PE terminal.
x
The ground contact in the power outlet is securely connected to the ground in the power
distribution room or on the AC transformer side.
x
The power cord is securely connected to the power outlet.
NOTE:
If the ground contact in the power outlet is not connected to the ground, report the problem and
reconstruct the grounding system.
1 2 3 4

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Figure 18 Grounding the switch through the PE wire of the AC power cord
(1) Three-wire AC power cable (2) Rear panel
NOTE:
As a best practice to guarantee the grounding effect, use the grounding cable provided with the
switch to connect to the grounding strip in the equipment room.
Installing/removing fan trays
CAUTION:
The HPE FlexFabric 5950 switches have six fan tray slots. To ensure good ventilation of the switch,
follow these guidelines:
xYou must install six fan trays of the same model for the switch: HPE X712 HV2 fan tray or HPE
X711 HV2 fan tray.
xMake sure all slots have a module or filler panel installed when the switch is operating.
xDo not remove multiple fan trays at the same time. Remove the fan trays one by one and finish
replacing a fan tray within 3 minutes..
Installing a fan tray
CAUTION:
To prevent damage to the fan tray or the connectors on the backplane, insert the fan tray gently. If
you encounter a hard resistance while inserting the fan tray, pull out the fan tray and insert it again.
To install a fan tray:
1. Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.
2. Unpack the fan tray and verify that the fan tray model is correct.

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3. Orient the fan tray with the "TOP" mark on top. Grasp the handle of the fan tray and slide the fan
tray along the guide rails into the slot until the fan tray seats in the slot and the fan tray
connector has a firm contact with the backplane. See Figure 19.
Figure 19 Installing an HPE X712 HV2 fan tray in the HPE FlexFabric 5950 32QSFP28/HPE
FlexFabric 5950 32QSFP28 TAA switch
When the switch is powered on for the first time, use the fan prefer-direction command to configure
the airflow direction of the fan tray as the preferred airflow direction of the switch. If the fan tray
airflow direction and the preferred airflow direction are not thesame, the system generates traps and
logs. By default, the preferred airflow direction is from the power module side to the port side.
For more information about the fan prefer-direction command, see HPE FlexFabric 5950 Switch
Series Layer 2—LAN Switching Command References.
Removing a fan tray
WARNING!
xEnsure electricity safety and never touch the rotating fans when you hot-swap a fan tray.
xTo prevent a fan from causing loud noise, do not touch the fan blades and rotation axis, even if
the fan is not rotating.
To remove a fan tray:
1. Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.
2. Grasp the handle of the fan tray and pull the fan tray slowly out of the slot along the guide rails.
3. Put the removed fan tray in an antistatic bag.
Figure 20 Removing an HPE X712 HV2 fan tray