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| Title | Size | Download |
|---|---|---|
| 01-Installation Guide | 5.67 MB |
Examining the installation site
Mounting the switch in a 19-inch rack
Rack-mounting procedures at a glance
Mounting brackets, chassis rails, and grounding cable installation positions
Attaching the mounting brackets and chassis rails to the chassis
Connecting the grounding cable to the chassis
Attaching the slide rails to the rack
Mounting the switch in the rack
Installing and removing fan trays
Installing and removing power supplies
3 Accessing the switch for the first time
Connecting the switch to a configuration terminal
Connecting a DB9-to-RJ45 console cable
Connecting a USB-to-RJ45 console cable
4 Maintenance and troubleshooting
Configuration terminal display issues
No display on the configuration terminal
Garbled display on the configuration terminal
5 Setting up a DDC cloud cluster
DDC cloud cluster setup flowchart
Planning for setting up a DDC cloud cluster
Planning DDC cloud cluster size
Planning the topology and connections of the DDC cloud cluster
Determining member device roles and planning member IDs
Identifying the physical ports on the member switches
Configuring basic DDC cloud cluster settings
Accessing the DDC cloud cluster system to verify the configuration
1 Preparing for installation
The H3C S12500AI switch series includes the following models:
|
Switch series |
Model |
Product code (PID) |
|
H3C S12500AI switch series |
H3C S12500AI-6C-NCCA |
LS-12500AI-6C-NCCA |
|
H3C S12500AI-96B-NCFK |
LS-12500AI-96B-NCFK |
|
|
H3C S12500AI-36B48B-NCPK |
LS-12500AI-36B48B-NCPK |
|
|
H3C S12500AI-18D48B-NCPK |
LS-12500AI-18D48B-NCPK |
Safety recommendations
To avoid bodily injury or damage to the switch, read the following safety recommendations carefully before working with the switch. 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 chassis.
· Do not place the switch on an unstable case or desk.
· Ensure adequate ventilation for the switch and keep the protective vents of the switch unblocked.
· Make sure the power source voltage meets the requirements of the switch.
· To avoid electrical shocks, do not open the chassis while the switch is operating. As a best practice, do not open the chassis even if the switch is powered off.
· To avoid ESD damage, always wear an ESD wrist strap when you replace a power supply or fan tray.
Examining the installation site
The switch must be used indoors. 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.
· 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 neighboring devices 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 your switch, install it in an environment that meets the requirements described in the following subsections.
Temperature and humidity
For correct operation and long service life of your switch, maintain the temperature and humidity in the equipment room at acceptable ranges.
· Lasting high relative humidity can cause poor insulation, electricity leakage, mechanical property change of materials, and metal corrosion.
· Lasting low relative humidity can cause washer contraction and ESD and cause problems including loose mounting screws and circuit failure.
· 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 the hardware information and specifications for the switch.
Cleanliness
Dust buildup on the chassis might cause electrostatic adsorption and dust corrosion, resulting in poor contact of metal connectors and contact points. This might shorten the device's lifetime and even cause device failure in the worst case. Table1-1 describes the switch requirement for cleanliness.
Table1-1 Switch requirement for cleanliness
|
Substance |
Particle diameter |
Concentration limit |
|
Dust particles |
≥ 5 μm |
≤ 29300 particles/m³ |
|
Dust particles |
≥ 1 μm |
≤ 832000 particles/m³ |
|
Dust particles |
≥ 0.5 μm |
≤ 3520000 particles/m³ |
To maintain cleanliness in the equipment room, follow these guidelines:
· Keep the equipment room away from pollution sources. Do not smoke, eat, or drink in the equipment room.
· Use double-layer glass in windows and seal doors and windows with dust-proof rubber strips. Use screen doors and window screens for doors and windows open to the outside and make sure the external windows are air tight.
· Use dustproof materials for floors, walls, and ceilings and use wallpaper or matt paint that does not produce powders.
· Clean the equipment room regularly and clean the air filters of the rack each month.
· Wear ESD clothing and shoe covers before entering the equipment room, keep the ESD clothing and shoe covers clean, and change them frequently.
Corrosive gas limit
Corrosive gases can accelerate corrosion and aging of metal components. Make sure the corrosive gases in the equipment room do not exceed the concentration limits as shown in Table1-2.
Table1-2 Corrosive gas concentration limits
|
Gas |
Concentration |
|
H2S |
< 3 ppb |
|
SO2, SO3 |
< 10 ppb |
|
Cl2 |
< 1 ppb |
|
NOx |
< 50 ppb |
|
HF |
< 1 ppb |
|
NH3 |
< 500 ppb |
|
O3 |
< 2 ppb |
|
Note: Part per billion (ppb) is a concentration unit. 1 ppb represents a volume-to-volume ratio of 1 to 1000000000. |
|
To maintain cleanliness in the equipment room, follow these guidelines:
· As a best practice, do not build the equipment room in a place with a high concentration of corrosive gases.
· Make sure the equipment room is not connected to sewer, vertical shaft, or septic tank pipelines and keep it far away from these pipelines. The air inlet of the equipment room must be away from such pollution sources.
· Use environmentally friendly materials to decorate the equipment room. Avoid using organic materials that contains harmful gases, such as sulfur or chlorine-containing insulation cottons, rubber mats, sound-proof cottons, and avoid using plasterboards with high sulfur concentration.
· Place fuel (diesel or gasoline) engines separately. Do not place them in the same equipment room with the device. Make sure the exhausted air of the engines will not flow into the equipment room or towards the air inlet of the air conditioners.
· Place batteries separately. Do not place them in the same room with the device.
· Employ a professional company to monitor and control corrosive gases in the equipment room regularly.
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.
· 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.
· Use electromagnetic shielding, for example, shielded interface cables, when necessary.
· To prevent signal ports from getting damaged by overvoltage or overcurrent caused by lightning strikes, route interface cables only indoors.
Laser safety
|
|
WARNING! · The switch is a Class 1M laser device. · Disconnected optical fibers or transceiver modules might emit invisible laser light. Do not stare into beams or view directly with optical instruments when the switch is operating. |
Installation tools
No installation tools are provided with the switch. Prepare the following tools yourself:
· Phillips screwdriver
· ESD wrist strap
· Marker
2 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 H3C for permission. Otherwise, H3C shall not be liable for any consequence caused thereby. |
Figure2-1 Installation flowchart
Mounting the switch in a 19-inch rack
Rack-mounting procedures at a glance
Use mounting brackets, slide rails, and chassis rails to mount the switch in a rack.
Figure2-2 Rack-mounting procedure
|
|
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 by using the mounting brackets. |
Rack-mounting requirements
Figure2-3 LS-12500AI-6C-NCCA chassis dimensions (mounting brackets installed at the port side)
|
(1) Power supply handle |
(2) Mounting bracket |
|
(1) Power supply handle |
(2) Mounting bracket |
Figure2-5 LS-12500AI-96B-NCFK chassis dimensions (mounting brackets installed at the port side)
|
(1) Power supply handle |
(2) Mounting bracket |
|
(3) Cable management bracket |
|
|
(1) Cable management bracket |
(2) Power supply handle |
|
(3) Mounting bracket |
|
Figure2-7 LS-12500AI-36B48B-NCPK chassis dimensions (mounting brackets installed at the port side)
|
(1) Power supply handle |
(2) Mounting bracket |
|
(3) Cable management bracket |
|
|
(1) Cable management bracket |
(2) Power supply handle |
|
(3) Mounting bracket |
|
Figure2-9 LS-12500AI-18D48B-NCPK chassis dimensions (mounting brackets installed at the port side)
|
(1) Power supply handle |
(2) Mounting bracket |
|
(3) Cable management bracket |
|
|
(1) Cable management bracket |
(2) Power supply handle |
|
(3) Mounting bracket |
|
|
Switch model |
Installation method |
Chassis dimensions |
Distance between the front and rear rack posts |
Rack requirements |
|
S12500AI-6C-NCCA |
Mounting brackets and long slide rails (provided) |
· Height—44.0 mm (1.73 in)/1 RU · Width—440 mm (17.32 in) · Depth—471 mm (18.54 in) ¡ 31 mm (1.22 in) for the power supply or fan tray handle ¡ 400 mm (15.75 in) for the chassis |
562 to 793 mm (22.13 to 31.22 in) |
· A minimum of 1000 mm (39.37 in) in depth (recommended). · A minimum of 130 mm (5.12 in) from the front rack posts to the front door. · A minimum of 500 mm (19.69 in) from the front rack posts to the rear door. |
|
S12500AI-6C-NCCA |
Mounting brackets and short slide rails (optional) |
· Height—44.0 mm (1.73 in)/1 RU · Width—440 mm (17.32 in) · Depth—471 mm (18.54 in) ¡ 31 mm (1.22 in) for the power supply or fan tray handle ¡ 400 mm (15.75 in) for the chassis |
341 to 573 mm (13.43 to 22.56 in) |
· A minimum of 1000 mm (39.37 in) in depth (recommended). · A minimum of 130 mm (5.12 in) from the front rack posts to the front door. · A minimum of 500 mm (19.69 in) from the front rack posts to the rear door. |
|
S12500AI-96B-NCFK |
Mounting brackets and slide rails (provided) |
· Height—130.5 mm (5.14 in)/3 RUs · Width—440 mm (17.32 in) · Depth—791.6 mm (31.17 in) ¡ 31.6 mm (1.24 in) for the power supply or fan tray handle ¡ 760 mm (29.92 in) for the chassis |
644 to 1021 mm (25.35 to 40.20 in) |
· A minimum of 1200 mm (47.24 in) in depth (recommended). · A minimum of 130 mm (5.12 in) from the front rack posts to the front door. · A minimum of 860 mm (33.86 in) from the front rack posts to the rear door. |
|
S12500AI-36B48B-NCPK |
Mounting brackets and slide rails (provided) |
· Height—88.1 mm (3.47 in)/2 RUs · Width—440 mm (17.32 in) · Depth—791.6 mm (31.17 in) ¡ 31.6 mm (1.24 in) for the power supply or fan tray handle ¡ 760 mm (29.92 in) for the chassis |
635 to 1012 mm (25.00 to 39.84 in) |
· A minimum of 1200 mm (47.24 in) in depth (recommended). · A minimum of 130 mm (5.12 in) from the front rack posts to the front door. · A minimum of 860 mm (33.86 in) from the front rack posts to the rear door. |
|
S12500AI-18D48B-NCPK |
Mounting brackets and slide rails (provided) |
· Height—88.1 mm (3.47 in)/2 RUs · Width—440 mm (17.32 in) · Depth—791.6 mm (31.17 in) ¡ 31.6 mm (1.24 in) for the power supply or fan tray handle ¡ 760 mm (29.92 in) for the chassis |
635 to 1012 mm (25.00 to 39.84 in) |
· A minimum of 1200 mm (47.24 in) in depth (recommended). · A minimum of 130 mm (5.12 in) from the front rack posts to the front door. · A minimum of 860 mm (33.86 in) from the front rack posts to the rear door. |
Installation accessories
Table2-3 Installation accessories
|
Switch model |
Mounting brackets (provided) |
Rack mounting rail kit |
|
S12500AI-6C-NCCA |
1U high, one pair. See Figure2-11. |
1U high, including one pair of long slide rails and one pair of chassis rails (provided). See Figure2-14. 1U high, including one pair of short slide rails and one pair of chassis rails (optional). See Figure2-15. |
|
S12500AI-96B-NCFK |
3U high, one pair. See Figure2-12. |
2U high, including one pair of slide rails and one pair of chassis rails (provided). See Figure2-16. |
|
S12500AI-36B48B-NCPK |
2U high, one pair. See Figure2-13. |
2U high, including one pair of slide rails and one pair of chassis rails (provided). See Figure2-16. |
|
S12500AI-18D48B-NCPK |
2U high, one pair. See Figure2-13. |
2U high, including one pair of slide rails and one pair of chassis rails (provided). See Figure2-16. |
Figure2-11 Mounting brackets provided with the S12500AI-6C-NCCA switch
Figure2-12 Mounting brackets provided with the S12500AI-96B-NCFK switch
Figure2-13 Mounting brackets provided with the S12500AI-36B48B-NCPK/S12500AI-18D48B-NCPK switch
Figure2-14 1U long slide rails and chassis rail
|
(1) Chassis rail |
(2) Slide rail |
Figure2-15 1U short slide rails and chassis rail
|
(1) Chassis rail |
(2) Slide rail |
Figure2-16 2U slide rails and chassis rail
|
(1) Chassis rail |
(2) Slide rail |
Mounting brackets, chassis rails, and grounding cable installation positions
The S12500AI-6C-NCCA, S12500AI-96B-NCFK, S12500AI-36B48B-NCPK, and S12500AI-18D48B-NCPK switches each provide one grounding point (with a grounding sign), as shown in Figure2-17, Figure2-18, Figure2-19, and Figure2-20.
Select installation positions for the mounting brackets, chassis rails, and grounding cable as required.
|
(1) Grounding point |
(2) Port-side installation position for the mounting bracket |
|
(1) Port-side installation position for the mounting bracket |
(2) Grounding point |
|
(1) Port-side installation position for the mounting bracket |
(2) Grounding point |
|
(1) Port-side installation position for the mounting bracket |
(2) Grounding point |
Attaching the mounting brackets and chassis rails to the chassis
|
|
IMPORTANT: As a best practice, use a torque of 12 kgf-cm (1.18 Nm) to fasten the M4 screws. |
To attach 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 the provided M4 screws to attach the mounting bracket to the chassis.
¡ To install the mounting brackets at the port-side mounting position, see Figure2-21, Figure2-23, Figure2-25, and Figure2-27.
¡ To install the mounting brackets at the power supply-side mounting position, see Figure2-22, Figure2-24, Figure2-26, and Figure2-28.
2. Determine the installation position of the chassis rails based on the position of mounting brackets and the distance between the front and rear rack posts.
Table2-4 Chassis rail installation position
|
Switch model |
Mounting bracket installation position |
Chassis rail installation position |
Distance between the front and rear rack posts |
|
S12500AI-6C-NCCA (long slide rails) |
Port-side mounting position as shown in Figure2-21 or power supply-side mounting position as shown in Figure2-22 |
Position a |
562 to 728 mm (22.13 to 28.66 in) |
|
Position b |
562 to 793 mm (22.13 to 31.22 in) |
||
|
S12500AI-6C-NCCA (short slide rails) |
Port-side mounting position as shown in Figure2-21 or power supply-side mounting position as shown in Figure2-22 |
Position a |
341 to 508 mm (13.43 to 20.00 in) |
|
Position b |
393 to 573 mm (15.47 to 22.56 in) |
||
|
S12500AI-96B-NCFK |
Port-side mounting position as shown in Figure2-23 or power supply-side mounting position as shown in Figure2-24 |
Position a |
644 to 891 mm (25.35 to 35.08 in) |
|
Position b |
710 to 956 mm (27.95 to 37.64 in) |
||
|
Position c |
775 to 1021 mm (30.51 to 40.20 in) |
||
|
S12500AI-36B48B-NCPK |
Port-side mounting position as shown in Figure2-25 or power supply-side mounting position as shown in Figure2-26 |
Position a |
635 to 882 mm (25.00 to 34.72 in) |
|
Position b |
702 to 947 mm (27.64 to 37.28 in) |
||
|
Position c |
767 to 1012 mm (30.20 to 39.84 in) |
||
|
S12500AI-36B48B-NCPK |
Port-side mounting position as shown in Figure2-27 or power supply-side mounting position as shown in Figure2-28 |
Position a |
635 to 882 mm (25.00 to 34.72 in) |
|
Position b |
702 to 947 mm (27.64 to 37.28 in) |
||
|
Position c |
767 to 1012 mm (30.20 to 39.84 in) |
3. Place the chassis rail against the chassis side panel. Align the chassis rail installation holes with the screw holes.
4. Use the provided M4 screws to attach the chassis rail to the chassis.
|
|
NOTE: Secure the mounting brackets and chassis rails to both sides of the chassis in the same way. |
Connecting the grounding cable to the chassis
|
|
IMPORTANT: If the grounding cable length or terminal type cannot meet your requirement, make an applicable grounding cable or contact H3C Support. |
The switch provides only one grounding point at the chassis rear, which supports a grounding cable that has a single-hole lug or dual-hole lug. Use M5 grounding screws to attach the grounding cable to the switch.
To connect the grounding cable:
1. Unpack the grounding cable and grounding screws.
2. Use the grounding screws to attach the grounding lug of the grounding cable to the grounding holes at the grounding point. Use a screwdriver to fasten the screws. See Figure2-29 and Figure2-30.
As a best practice, use a torque of 30 kgf-cm (2.94 Nm) to fasten the grounding screws.
Attaching the slide rails to the rack
1. Determine the installation position of the slide rails in the rack according to the planned switch installation position.
Plan a 1U rack space for installation of 1U slide rails and a 2U rack space for installation of 2U slide rails. Figure2-31 shows a standard 1U rack space.
In a standard 1U rack space, there are three installation holes, one in the middle for auxiliary installation and one at each end for standard installation. The spacing between two adjacent standard installation holes is slightly smaller than the distance between a standard installation hole and the middle, auxiliary installation hole.
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. Use user-supplied M6 screws to attach the slide rail to the post. See Figure2-32.
As a best practice, use a torque of 30 kgf-cm (2.94 Nm) to fasten the M6 screws.
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.
Figure2-32 Installing the 1U slide rails
Mounting 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. For more information, see "Attaching the mounting brackets and chassis rails to the chassis."
3. Verify that the slide rails have been correctly attached to the rear rack posts. For more information, see "Attaching the slide rails to the rack."
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.
|
|
IMPORTANT: Make sure the front ends of the slide rails reach out of the chassis rails for a minimum of 20 mm (0.79 in). |
6. The other person uses user-supplied M6 screws and cage nuts (with surfaces treated for corrosion protection) to attach the mounting brackets to the rack and verifies that the brackets are level and secure.
As a best practice, use a torque of 30 kgf-cm (2.94 Nm) to fasten the M6 screws.
Figure2-33 Mounting the LS-12500AI-6C-NCCA switch in the rack (mounting brackets installed at the port side)
Figure2-34 Mounting the LS-12500AI-96B-NCFK switch in the rack (mounting brackets installed at the port side)
Figure2-35 Mounting the LS-12500AI-36B48B-NCPK switch in the rack (mounting brackets installed at the port side)
Figure2-36 Mounting the LS-12500AI-18D48B switch in the rack (mounting brackets installed at the port side)
Grounding the switch
|
|
CAUTION: · Correctly connecting the grounding cable is crucial to lightning protection and EMI protection. You must connect the grounding cable correctly and reliably for the switch. · Connect the grounding cable to the grounding strip in the equipment room. Do not connect it to a fire main or lightning rod. · To guarantee the grounding effect and avoid switch damage, use the grounding cable provided with the switch to connect the switch to a grounding strip in the equipment room. |
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.
The grounding terminals in this section are for illustration only.
To connect the grounding cable to a grounding strip:
1. Attach one end of the provided yellow-green grounding cable to the grounding point on the chassis. For more information, see "Connecting the grounding cable to the chassis_Ref461022702."
2. 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 a hex nut.
Figure2-37 Connecting the grounding cable to a grounding strip (LS-12500AI-36B48B-NCPK as an example)
|
(1) Hex nut |
(2) Ring terminal |
|
(3) Grounding post |
(4) Grounding strip |
Installing and removing fan trays
|
|
CAUTION: To switch has multiple fan tray slots. To ensure good ventilation of the switch, follow these guidelines to install and remove fan trays: · The switch came with the fan tray slots empty. As a best practice to ensure adequate heat dissipation, fully configure the switch with fan trays of the same model. Before you power on the switch, make sure the number of installed fan trays meets the minimum requirement. · Make sure each slot has a module or a filler panel installed while the switch is operating. · If multiple fan trays fail on an operating switch, do not remove the fan trays at the same time. Replace the fan trays one after another and finish replacing each fan tray within 3 minutes. |
|
|
CAUTION: · Do not touch any bare cables or terminals on the fan tray. · Do not place the fan tray in a wet area, and prevent liquid from flowing into the fan tray. · When an internal circuit or component of the fan tray fails, contact H3C Support. Do not remove any component from the fan tray yourself. |
The following installation and removal procedures use the FAN-40B-1-C and FAN-80B-1-D fan trays as examples.
Installing a fan tray
|
|
CAUTION: To prevent damage to the fan tray or the backplane connectors, 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. |
Select fan trays for the switch as needed. For the available fan trays and their specifications, see the hardware information and specifications for the switch.
The switch supports shipping with fan trays and power supplies installed. If your switch came with fan trays preinstalled, skip this section.
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.
3. To install a FAN-40B-1-C fan tray, orient the fan tray with the connector facing downwards. To install a FAN-80B-1-D fan tray, orient the fan tray with the "TOP" mark on the top. Grasping the handle of the fan tray with one hand and supporting the fan tray bottom with the other, slide the fan tray along the guide rails into the slot until the fan tray is fully seated in the slot and has a firm contact with the backplane. See Figure2-38.
Figure2-38 Installing a FAN-40B-1-C fan tray on the LS-12500AI-6C-NCCA switch
Figure2-39 Installing a FAN-80B-1-D fan tray on the LS-12500AI-36B48B-NCPK switch
Removing a fan tray
|
|
WARNING! · Ensure electricity safety and never touch the rotating fans when you hot swap a fan tray. · To prevent an unbalanced fan from causing loud noise, do not touch the fan blades or rotation axis, even if the fan is not rotating. |
1. Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.
2. Pressing the red part of the handle, pull the fan tray slowly out of the slot along the guide rails. See Figure2-40.
3. Put the removed fan tray in an antistatic bag.
Figure2-40 Removing a FAN-40B-1-C fan tray
Figure2-41 Removing a FAN-80B-1-D fan tray
Installing and removing power supplies
|
|
WARNING! · To avoid bodily injury or device damage, strictly follow the procedures in Figure2-42 and Figure2-43 to install and remove a power supply. · Provide a circuit breaker for each power supply. |
The switch came with the two power supply slots not installed with power supplies. You can install power supplies for the switch as required. For the available power supplies and their specifications, see the hardware information and specifications for the switch.
Figure2-42 Installation procedure
Safety precautions
To avoid possible bodily injury and power supply and device damage, follow these safety precautions:
· When you install and remove a power supply, always wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.
· Before you install a power supply, make sure the voltage of the power source is as required by the power supply, and the output voltage of the power supply is as required by the switch.
· Do not touch any bare cables or terminals on the power supply.
· Do not place the power supply in a wet area, and prevent liquid from flowing into the power supply.
· To avoid power supply damage, do not open the power supply. When the internal circuits or components of the power supply fail, contact H3C Support.
Installing a power supply
|
|
CAUTION: · Follow the forward inertia of the power supply when inserting it into the chassis, and make sure the power supply has firm contact with the connectors on the backplane. · To prevent damage to the connectors inside the switch chassis, insert the power supply gently. If you encounter a hard resistance while inserting the power supply, pull out the power supply and insert it again. |
|
|
IMPORTANT: You must install power supplies of the same model on the switch. |
The switch supports shipping with fan trays and power supplies installed. If your switch came with power supplies preinstalled, skip this section.
To install a power supply:
1. Remove the filler panel, if any, from the target power supply slot.
Figure2-44 Removing a filler panel (LS-12500AI-6C-NCCA as an example)
Figure2-45 Removing a filler panel (LS-12500AI-36B48B-NCPK as an example)
2. Unpack the power supply and verify that the power supply model is as required.
3. Correctly orient the power supply with the lettering on it upright. Grasping the handle of the power supply with one hand and supporting its bottom with the other, slide the power supply slowly along the guide rails into the slot.
The slot is foolproof. If you cannot insert the power supply into the slot, re-orient the power supply rather than use excessive force to push it in.
Figure2-46 Installing an SW-A-PSR550-12A-B power supply on the LS-12500AI-6C-NCCA switch
Figure2-47 Installing a PSR2000-12A-S power supply on the LS-12500AI-36B48B-NCPK switch
Removing a power supply
|
|
CAUTION: When the switch has power supplies in 1+1 redundancy mode, removing one power supply does not affect the operation of the switch. When the switch has only one power supply installed, removing the power supply powers off the switch. |
To remove a power supply:
1. Remove the power cord from the power supply.
2. Holding the power supply handle with one hand, pivot the latch on the power supply to the left with your thumb and pull the power supply part way out of the slot. Supporting the power supply bottom with the other hand, slowly pull the power supply out of the slot.
3. Put the removed power supply in an antistatic bag for future use.
4. If you are not to install a new power supply, install a filler panel in the slot to ensure good ventilation in the switch, as shown in Figure2-52 and Figure2-53.
Figure2-48 Disconnecting the power cord from an SW-A-PSR550-12A-B power supply on the LS-12500AI-6C-NCCA switch
Figure2-49 Removing an SW-A-PSR550-12A-B power supply from the LS-12500AI-6C-NCCA switch
|
(1) Pivot the latch to the left with your thumb |
(2) Pull the power supply out |
Figure2-50 Disconnecting the power cord from a PSR2000-12A-S power supply on the LS-12500AI-36B48B-NCPK switch
Figure2-51 Removing a PSR2000-12A-S power supply from the LS-12500AI-36B48B-NCPK switch
|
(1) Pivot the latch to the left with your thumb |
(2) Pull the power supply out |
Figure2-52 Installing a power supply filler panel (LS-12500AI-6C-NCCA as an example)
Figure2-53 Installing a power supply filler panel (LS-12500AI-36B48B-NCPK as an example)
Connecting the power cords
|
|
WARNING! Provide a circuit breaker for each power input. Before connecting the power cord, make sure the circuit breaker on the power cord is turned off. |
To connect a power cord:
1. Insert the female connector of the power cord supplied with the power supply into the power input receptacle on the power supply.
2. Use a Velcro cable strap to secure the power cord to the power supply handle.
3. Connect the other end of the power cord to an external power source.
Figure2-54 Connecting the power cord for an SW-A-PSR550-12A-B power supply
Figure2-55 Connecting the power cord for a PSR2000-12A-S power supply
Verifying the installation
After you complete the installation, verify the following information:
· There is enough space around the switch for heat dissipation.
· The rack is stable.
· The grounding cable is connected correctly.
· The power source is as required by the switch.
· The power cord is correctly connected.
· All the interface cables are cabled indoors. The switch does not support outdoor cable routing.
3 Accessing the switch for the first time
Connecting the switch to a configuration terminal
You can access the switch through the serial console port.
In Figure3-1, the switch is connected to a configuration terminal (PC as an example) from the serial console port.
Figure3-1 Connecting the switch to a configuration terminal
As shown in Table3-1, two types of console cables can be used for connecting the switch to a configuration terminal. The switch is not provided with a serial console cable.
Table3-1 Connection methods and console cables
|
Connection method |
Console cable type |
Configuration terminal-side connector |
Switch-side connector |
|
Using the serial console port for connection |
DB9-to-RJ45 console cable |
DB-9 female connector |
RJ-45 connector |
|
USB-to-RJ45 console cable |
USB port |
RJ-45 connector |
The signal pinout for the RJ-45 connector of a serial console cable varies by vendor. To avoid abnormal configuration terminal display, use a serial console cable provided by H3C. For more information, see Table3-2. To prepare a serial console cable yourself, make sure the signal pinout for the RJ-45 connector is the same as that shown in Table3-3.
|
Console cable type |
Console cable view |
Product code for the recommended H3C console cable |
|
DB9-to-RJ45 console cable |
|
04042967 |
|
USB-to-RJ45 console cable |
|
0404A1EE |
Connecting the console cable
Connecting a DB9-to-RJ45 console cable
A DB9-to-RJ45 serial console cable is an 8-core cable, with a crimped RJ-45 connector at one end for connecting to the serial console port of the switch, and a DB-9 female connector at the other end for connecting to the serial port on a configuration terminal.
Figure3-2 Serial console cable
Table3-3 Console cable signal pinout
|
RJ-45 |
Signal |
DB-9 |
Signal |
|
1 |
RTS |
8 |
CTS |
|
2 |
DTR |
6 |
DSR |
|
3 |
TXD |
2 |
RXD |
|
4 |
SG |
5 |
SG |
|
5 |
SG |
5 |
SG |
|
6 |
RXD |
3 |
TXD |
|
7 |
DSR |
4 |
DTR |
|
8 |
CTS |
7 |
RTS |
To connect the switch to a configuration terminal (for example, a PC) by using a DB9-to-RJ45 console cable:
1. Plug the DB-9 female connector of the console cable to the serial port on the PC.
2. Connect the RJ-45 connector of the console cable to the serial console port on the switch.
|
|
NOTE: · Identify the mark on the console port and make sure you are connecting to the correct port. · The serial ports on PCs do not support hot swapping. To connect a PC to an operating switch, first connect the PC end. To disconnect a PC from an operating switch, first disconnect the switch end. |
Connecting a USB-to-RJ45 console cable
|
|
IMPORTANT: · To use a USB-to-RJ45 console cable to connect the switch to a configuration terminal, first download and install the USB-to-RJ45 console driver on the configuration terminal and then connect the USB-to-RJ45 console cable to the configuration terminal. · If you have connected a USB-to-RJ45 console cable to the configuration terminal before driver installation, you must reconnect the USB-to-RJ45 console cable to the configuration terminal. |
For information about the signal pinout for the RJ-45 connector of a USB-to-RJ45 console cable, see Table3-3.
The following describes driver installation on the Windows system. To install the driver on other operating systems, see the installation guide in the driver compression package named by the corresponding operating system.
To connect the device to a configuration terminal by using a USB-to-RJ45 console cable:
1. Click the following link, or copy it to the address bar on your browser and download the USB-to-RJ45 console driver.
http://www.h3c.com/en/home/USB_to_RJ45_Console/
2. View the Read me.txt file in the Windows folder to identify whether the Windows system of the configuration terminal supports the driver.
3. If the Windows system supports the driver, install PL23XX-M_LogoDriver_Setup_v200_20190815.exe.
4. Click Next on the welcome page of the driver installation wizard.
Figure3-3 Driver installation wizard
5. Click Finish after the driver installation is completed.
Figure3-4 Finishing the driver installation
6. Connect the standard USB connector of the cable to the USB port on the configuration terminal.
7. Connect the RJ-45 connector of the cable to the console port on the switch.
Setting terminal parameters
To configure and manage the switch through the console port, you must run a terminal emulator program, TeraTermPro or PuTTY, on your configuration terminal. You can use the emulator program to connect a network device, a Telnet site, or an SSH site. For more information about the terminal emulator programs, see the user guides for these programs.
Configure the terminal parameters as follows:
· Baud rate—9600.
· Data bits—8.
· Stop bits—1.
· Parity—None.
· Flow control—None.
Powering on the switch
Before powering on the switch, verify that the following conditions are met:
· All the fan tray slots have a fan tray installed.
· The power cord is correctly connected.
· The power source voltage is as required by the switch.
· The console cable is correctly connected.
· The configuration terminal (a PC, for example) has started, and the terminal parameters have been set correctly.
4 Maintenance and troubleshooting
|
|
CAUTION: As a best practice to avoid data theft, remove all data from an FRU that has a storage medium, for example, a CF card, SSD card, disk, or flash before disposal of that FRU. To remove data, format or destroy the storage medium on the FRU. |
Power supply failure
Symptom
The status LED on the power supply is not steady green. For more information about the status LED on a power supply, see the hardware information and specifications for the switch.
Solution
1. Verify that the power cord is connectedly correctly.
2. Verify that the installed power supply is as required by the switch.
3. Verify that the operating temperature of the switch is in an acceptable range, and adequate ventilation is provided for the switch.
4. If the issue persists, contact H3C Support.
To replace a power supply, see "Installing and removing power supplies."
Fan tray failure
|
|
CAUTION: If multiple fan trays fail on an operating switch, do not remove the fan trays at the same time. Replace the fan trays one after another and finish replacing each fan tray within 3 minutes. |
Symptom
The alarm LED on a fan tray is steady red or off, and the system outputs alarm messages.
Solution
See "Installing and removing fan trays" to replace the fan tray. If the issue persists, contact H3C Support.
Configuration terminal display issues
No display on the configuration terminal
Symptom
The switch starts up but the configuration terminal does not have any display.
Solution
To resolve the issue:
1. Verify that the power supply is supplying power correctly to the switch.
2. Verify that the console cable is connected correctly.
3. Verify that the console cable is in good condition.
4. Verify that the terminal settings are correct.
5. If the issue persists, contact H3C Support.
Garbled display on the configuration terminal
Symptom
The configuration terminal displays garbled texts.
Solution
To resolve the issue:
1. Verify that the configuration terminal settings are correct, as follows:
¡ Baud rate—9600.
¡ Data bits—8.
¡ Stop bits—1.
¡ Parity—None.
¡ Flow control—None.
2. If the issue persists, contact H3C Support.
5 Setting up a DDC cloud cluster
Distributed Disaggregated Chassis (DDC) is an innovative network architecture that uses the distributed disaggregated method to enhance the flexibility and scalability of data center networks. It implements distributed deployment of network functions by splitting traditional large network switches into smaller and independent modular components, known as white-box switches. Such white-box switches, serving as forwarding line cards or switching fabric modules, are installed in different racks. This provides better heat dissipation management and power consumption control, and overcomes the limitations of device upgrade and space expansion.
DDC cloud cluster setup flowchart
Figure5-1 DDC cloud cluster setup flowchart
To set up a DDC cloud cluster:
|
Step |
Description |
|
1. Plan for setting up a DDC cloud cluster. |
Plan for setting up the DDC cloud cluster based on the network and device conditions: · Planning DDC cloud cluster size · Planning the topology and connections of the DDC cloud cluster · Determining member device roles and planning member IDs · Identifying the physical ports on the member switches For more information, see "Planning for setting up a DDC cloud cluster." |
|
2. Install DDC cloud cluster member switches. |
|
|
3. Connect grounding cables and power cords for the member switches. |
See "Grounding the switch" and "Connecting the power cords." |
|
4. Power on the switches. |
N/A |
|
5. Configure basic DDC cloud cluster settings. |
See H3C S12500AI Switch Series Virtual Technologies Configuration Guide. |
|
6. Access the DDC cloud cluster system to verify the configuration. |
Log in to the cloud cluster system from any member device to verify the configuration. |
Planning for setting up a DDC cloud cluster
Planning DDC cloud cluster size
Determine the number of required member switches and the switch models. Table5-1 shows the switch models supported by the DDC cloud cluster.
Table5-1 Switch models supported by the DDC cloud cluster
|
Switch series |
Chassis type |
Switch model |
|
H3C S12500AI switch series |
NCC |
H3C S12500AI-6C-NCCA |
|
NCF |
H3C S12500AI-96B-NCFK |
|
|
NCP |
H3C S12500AI-36B48B-NCPK |
|
|
H3C S12500AI-18D48B-NCPK |
Planning the topology and connections of the DDC cloud cluster
Control plane topology and connections
When you use IPC channel ports to set up the control plane in the DDC cloud cluster, follow these restrictions and guidelines:
· As a best practice, use a minimum of two management (MGT) switches to set up the control plane. The MGT switches back up each other, which enhances the control plane reliability.
· To enhance the management network reliability, connect MGT switches via Layer 3 interfaces in a ring topology.
· An NCC has multiple IPC channel ports. Connect IPC channel ports with the same speed on the NCC to different MGT switches.
· The NCPs and NCFs each have two IPC channel ports. As a best practice to enhance link reliability, connect the two IPC channel ports on an NCP or NCF to two MGT switches.
As shown in Figure5-2, connect two IPC ports on each NCP, NCF, and NCC to two uplink MGT switches. The MGT switches form a ring network and forward control plane packets (such as management packets and protocol packets) in the DDC cloud cluster.
Figure5-2 Control plane topology and connections
In Figure5-3, S6850-56HF-H1 switches act as MGT switches and S12500AI-36B48B-NCPK switches serve as NCPs.
Figure5-3 Control plane connections
Data plane topology and connections
The requirements for data plane connections of the DDC cloud cluster are as follows:
· As a best practice, deploy NCPs and NCFs in a ratio of 2 to 1 based on the network scale.
· Connect NCPs and NCFs via SFI ports in full mesh.
Figure5-4 Data plane topology and connections
In Figure5-5, S12500AI-36B48B-NCPK switches serve as NCPs.
Figure5-5 Data plane connections
Determining member device roles and planning member IDs
Determining member device roles
Member devices in the DDC cloud cluster have two roles:
· Manager—Responsible for providing cloud platform HA, establishing the cluster, and managing cluster members. Managers are further divided into leader and follower depending on their responsibilities.
¡ Leader—As the primary manager, it is responsible for managing and controlling the entire cloud cluster, acting as the control center of the entire cloud cluster.
¡ Follower—As the backup manager, it is the backup of the leader. It also processes services and forwards packets. When the leader fails, the system automatically elects a new leader from the followers to take over the original leader's work.
· Worker—Responsible for managing local nodes, reporting node resources to the leader, and receiving scheduling messages from the leader for container deployment.
At first-time creation of a physical cluster, the network administrator determines the physical devices on which managers are deployed and the leader and follower roles of the physical devices. During the operation of the physical cluster, if the leader fails, the physical cluster automatically re-elects a new leader. For detailed information about the device role election rules, see H3C S12500AI Switch Series Virtual Technologies Configuration Guide.
Planning member IDs
In the DDC cloud cluster, a physical device is uniquely identified by a member ID, and member IDs are used during the setup and maintenance of both physical and container clusters. Only one device can use the default member ID, and the member IDs of all the other devices must be modified before they join the cluster. When you modify member IDs, make sure they are unique within the cloud cluster.
· During the setup of a physical cluster, if two devices have the same member ID, the device that registers later cannot join the physical cluster.
· During the operation of a physical cluster, if a new device tries to join but its member ID conflicts with an existing member's ID, the device cannot join the physical cluster.
Identifying the physical ports on the member switches
Identify the physical ports for connections on the member switches according to your topology.
In the DDC cloud cluster network, the NCCs, NCPs, and NCFs use IPC channel ports to transmit control packets. The NCPs and NCFs use SFI ports to transmit data packets. Table5-2 shows the ports on the S12500 AI switches.
Table5-2 Ports on the S12500AI switches
|
Switch series |
Chassis type |
Switch model |
Ports |
|
H3C S12500AI switch series |
NCC |
H3C S12500AI-6C-NCCA |
· 2 × SFP28 IPC ports · 6 × QSFP28 IPC ports |
|
NCF |
H3C S12500AI-96B-NCFK |
· 2 × SFP+ IPC ports · 96 × QSFP56 SFI ports |
|
|
NCP |
H3C S12500AI-36B48B-NCPK |
· 2 × SFP+ IPC ports · 48 × QSFP56 SFI ports · 36 × QSFP56 service ports · 18 × QSFP-DD service ports |
|
|
H3C S12500AI-18D48B-NCPK |
· 2 × SFP+ IPC ports · 48 × QSFP56 SFI ports · 18 × QSFP-DD service ports |
Configuring basic DDC cloud cluster settings
After you install the member switches, power on the switches, and log in to each member switch to configure basic DDC cloud cluster settings.
For more information about logging in to a switch, see H3C S12500AI Switch Series Fundamentals Configuration Guide.
For more information about configuring basic DDC cloud cluster settings, see H3C S12500AI Switch Series Virtual Technologies Configuration Guide.
Accessing the DDC cloud cluster system to verify the configuration
To verify the basic functionality of the DDC cloud cluster:
1. Log in to the DDC cloud cluster system from an NCC or an NCP with a fail-permit container.
2. Display the running status of the cloud cluster by executing the display commands in Table5-3 in any view.
Table5-3 Displaying and maintaining DDC cloud cluster configuration and running status
|
Task |
Command |
|
Display information about the physical cluster. |
display cloud-cluster [ member member-id ] [ verbose ] |
|
Display cloud cluster configuration information. |
In standalone mode: display cloud-cluster configuration In cluster mode: display cloud-cluster configuration [ member member-id ] |
|
Display container information of the container cluster. |
display cloud-cluster service-cluster container [ container-id ] [ verbose ] |
