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Hardware Description (V100 and V200)
CloudEngine 9800, 8800, 7800, 6800, and 5800 Series Switches

This document provides an overall description of the CE5800&6800&7800&8800 series switches hardware, helping you obtain detailed information about each chassis, power module, fan module, card, cable, and optical module.

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CE6856-48T6Q-HI

CE6856-48T6Q-HI

Version Mapping

Table 2-200 lists the mappings between the CE6856-48T6Q-HI and software versions.

Table 2-200 Version mapping

Device Series

Sub-series

Device Model

Short Name

Supported Version

CE6800

CE6856

CE6856-48T6Q-HI

CE6856HI

V200R002C50~V200R019C10

NOTE:

This model is not supported in V200R005C20.

Appearance and Structure

The figures in this document are for reference only.

Figure 2-88 CE6856-48T6Q-HI

1

Ground screw

2

Two ETH management ports (combo)

Applicable modules for the GE optical port of the combo port:
NOTE:

The combo optical port uses a 100M or GE optical module and matching fibers. A 100M optical module can be used only after the switch starts successfully.

3

Console port

4

USB port

5

Mini USB port

6
Barcode label
NOTE:

This label is drawable, and you can pull it outward to view the ESN barcode and MAC address of the switch.

7

Fan slot 1

Applicable fan modules:

8

Fan slot 2

Applicable fan modules:

9

Power supply slot 1

Applicable power modules:

10

Power supply slot 2

Applicable power modules:

11

Forty-eight 10GBASE-T Ethernet electrical ports

12

Six 40GE QSFP+ Ethernet optical ports

NOTE:

A 40GE QSFP+ port can be split into four 10GE ports.

In V200R005C00 and later versions, a QSA convertor can be installed on a 40GE interface that has been split. Installing a medium whose rate is 10 Gbit/s on the QSA convertor makes a 40GE interface function as a 10GE interface. Only the first split interface works and other three split interfaces are unavailable. If a QSA convertor is installed on an interface that is not split or a medium whose rate is not 10 Gbit/s is installed on the QSA convertor on an interface that has been split, the interface enters the Down(Transceiver type mismatch) status.

Applicable modules and cables:

13

Three port-side mounting holes for mounting brackets

14

Four middle mounting holes for mounting brackets

15

Four power-supply-side mounting holes for mounting brackets

-

-

Slot

  • Power supply slot

    The CloudEngine 8800, 7800, 6800, and 5800 series switches (except the CE8850-64CQ-EI) have two power supply slots, in which power modules can be installed to provide power to the chassis. A chassis can have one or two power modules. Double power modules can provide higher reliability.

    The CloudEngine 8800, 7800, 6800, and 5800 series switches (except the CE8850-64CQ-EI) support double power modules (1+1 backup).
    • When both power modules are working properly, they equally provide power for a chassis.
    • When one power module fails, the other one provides all power required for a chassis.
    All power modules are hot swappable.

  • Fan slot

    The CloudEngine 8800, 7800, 6800, and 5800 series switches (except the CE8850-64CQ-EI, CE6863-48S6CQ, CE6881-48S6CQ, CE6820-48S6CQ, CE6863-48S6CQ-K, CE6881-48S6CQ-K, CE6881E-48S6CQ and CE6857-48S6CQ-EI) have two fan slots, in which fan modules can be installed to cool the chassis, ensuring efficient heat dissipation and system stability. A chassis must have two working fan modules to ensure normal operating.

    All fan modules are hot swappable.

Airflow

The cooling systems of the CloudEngine 8800, 7800, 6800, and 5800 series switches have front-to-back or back-to-front airflow depending on the airflow direction of the power modules and fan modules used. The airflow direction of the power modules and fan modules required on the CloudEngine 8800, 7800, 6800, and 5800 series switches depends on how the switches are installed in cabinets. Typically, cabinets in a data center have cold air flowing in from the front and hot air exhausted from the back. If CloudEngine 8800, 7800, 6800, and 5800 series switches are installed with the power supply side facing the front, you are advised to use fan modules and power modules with front-to-back airflow in the switches.
  • Front-to-back airflow: The power modules and fan modules using front-to-back airflow are marked or . Air flows into the chassis from the power supply side and flows out from the port side, as shown in Figure 2-89 (CE5800 as an example).
  • Back-to-front airflow: The power modules and fan modules using back-to-front airflow are marked or . Air flows into the chassis from the port side and flows out from the power supply side, as shown in Figure 2-90 (CE5800 as an example).

  • When the power module and fan module use forcible heat dissipation, they must use the same airflow method. For example, if the power module with back-to-front airflow is used, the fan module with back-to-front airflow must be used.

Figure 2-89 Front-to-back airflow (air flows out from the port side)
Figure 2-90 Back-to-front airflow (air flows in from the port side)

Indicators

The downlink service port indicators of the CE6856-48T6Q-HI are 10GE electrical port indicators, and other indicators are the same as those on the CE6850-48S6Q-HI. The CE6850-48S6Q-HI is used as an example here to describe the indicators.

Ports

10GBASE-T Ethernet Electrical Port

A 10GBASE-T Ethernet electrical port receives and sends service traffic at the rate of 100 Mbit/s, 1000 Mbit/s, or 10 Gbit/s. The port can work at the rate of 100 Mbit/s or 1000 Mbit/s through auto-sensing. 10GBASE-T Ethernet electrical ports must use Category 6A shielded Ethernet cables or higher Ethernet cables. Table 2-201 shows the attributes of a 10GBASE-T Ethernet electrical port.
Table 2-201 Attributes of a 10GBASE-T Ethernet electrical port

Attribute

Description

Connector type

RJ45

Standards compliance

IEEE802.3an and IEEE802.3az

Applicable cable

Straight-through cable and crossover cable

Working mode

Supported rate: 100/1000 Mbit/s and 10 Gbit/s auto-sensing

Full-duplex

Maximum transmission distance

100 m

40GE QSFP+ Ethernet Optical Port

A 40GE QSFP+ Ethernet optical port receives and sends services at the rate of 40 Gbit/s. If a 40GE QSFP+ Ethernet optical port is split into four 10GE ports, it must use 1-to-4 QSFP+ optical modules and optical fibers or 1-to-4 QSFP+ cables. Table 2-202 describes the attributes of a 40GE QSFP+ Ethernet optical port.
Table 2-202 Attributes of a 40GE QSFP+ Ethernet optical port

Attribute

Description

Connector type

LC/MPO

Optical port attributes

Depending on the module or cable in use

Standards compliance

IEEE802.3ba

Working mode

Full-duplex

Console Port

The console port is connected to a console for onsite configuration. The port must use a console cable. Table 2-203 describes the attributes of the console port.
Table 2-203 Attributes of the console port

Attribute

Description

Connector type

RJ45

Standards compliance

RS232

Working mode

Duplex Universal Asynchronous Receiver/Transmitter (UART)

Baud rate

9600 bit/s to 115200 bit/s

Default value: 9600 bit/s
  • The console port and Mini USB port share one internal serial port. You can use the console port or Mini USB port as the serial port according to your needs. When the Mini USB is activated, the console port cannot be used.
  • When both the console port and Mini-USB port have a cable connected, the Mini-USB port is used.

Mini USB Port

The Mini USB port can connect to a configuration terminal for onsite configuration of the system, but the configuration terminal must have a USB serial port driver installed. The Mini USB port is used as the serial port once a link is established on the port.

ETH Management Port (Combo)

The ETH management port (combo) consists of an electrical port and an optical port. You can connect the electrical or optical port to a configuration terminal or network management workstation to set up the onsite or remote configuration environment. The electrical and optical ports are logically multiplexed, and only one of them can work at a time.

The combo port automatically selects the working mode as follows:

  • If the optical port has no optical module installed and the electrical port has no network cable connected, the port type depends on which port is connected first. If the electrical port is connected by a network cable first, the electrical port is used for data switching. If the optical port has an optical module installed first, the optical port is used for data switching.
  • If the electrical port has a network cable connected and is in Up state, the electrical port is still used for data switching when the optical port has an optical module installed.
  • If the optical port has an optical module installed and is in Up state, the optical port is still used for data switching when the electrical port has a network cable connected.
  • If the optical port has an optical module and optical fiber installed and the electrical port has a network cable connected, the optical port is used for data switching after the switch restarts.
The combo electrical port uses a Category 5 or higher category network cable. Table 2-204 describes the attributes of the combo electrical port.
Table 2-204 Attributes of the combo electrical port

Attribute

Description

Connector type

RJ45

Standards compliance

IEEE802.3ab

Working mode

Supported rate: 10/100/1000 Mbit/s auto-sensing

Full-duplex

Maximum transmission distance

100 m
The combo optical port uses a 100M or GE optical module and matching optical fibers. A 100M optical module can be used only after the switch starts successfully. If a 10GE optical module is installed, the interface can go Up, but the system displays an alarm message, indicating that the interface does not support the optical module. If a GE copper module is installed and the remote interface also has a GE copper module installed, the local interface can go Up but does not support rate configuration. Table 2-205 describes the attributes of the combo optical port.
Table 2-205 Attributes of the combo optical port

Attribute

Description

Connector type

LC

Standards compliance

IEEE802.3z

Working mode

100/1000 Mbit/s

Full-duplex
The CE6856-48T6Q-HI switch has two ETH management ports (combo). Pay attention to the following when using the two management ports:
  • The two ports cannot be used together, and you must choose one of them to use.
  • Before start of a CE6856-48T6Q-HI switch, you can select interface 1 or interface 2 in the BIOS menu. Interface 1 is the default choice. For details, see "Modify parameters" in the Basic Configuration Guide - BIOS Menu.
  • After registration of the switch succeeds:
    • If both the management ports have a cable connected and are in Up state, port 1 acts as the primary management port and port 2 becomes the backup automatically. The management interface number displayed on the command line interface is MEth0/0/0, regardless of which port is used.
    • If cables are connected to the two ETH management ports after successful registration of the switch, the port that is connected first is used as the primary management port.
    • If port 1 fails, the system switches management traffic to port 2 automatically. When port 1 recovers, management traffic cannot be switched back to port 1, unless port 2 fails or the switch restarts. You can observe indicators on the ETH management ports to determine which port is used currently. (The Link indicator of the ETH management port used is steady green. If data is being transmitted on this port, its ACT indicator is blinking yellow. The indicators of the backup port are off.)

USB Port

A USB flash drive can be connected to the USB port for log backup, system software backup and uploading, or USB-based deployment.

Specifications

Table 2-206 lists technical specifications of the CE6856-48T6Q-HI switch.

Table 2-206 Technical specifications

Item

Description

Physical specifications
  • Dimensions (W x D x H): 442.0 mm x 600.0 mm x 43.6 mm (17.4 in. x 23.6 in. x 1.72 in.)
  • Weight (with two power modules and two fan modules, calculated based on the heaviest model if multiple models are supported): 12.6 kg (27.78 lb)

Environment parameters

Temperature
  • Operating temperature: 0°C to 40°C (32°F to 104°F) at altitude of 0-1800 m (0-5906 ft.)
    NOTE:

    When the altitude is 1800-5000 m (5096-16404 ft.), the highest operating temperature reduces by 1°C (1.8°F) every time the altitude increases by 220 m (722 ft.).

  • Storage temperature: -40°C to +70°C (-40°F to +158°F)

Relative humidity

5% RH to 95% RH, noncondensing

Altitude

< 5000 m (16404 ft.)

Noise (sound pressure, 27°C)
  • Back-to-front airflow: < 53 dBA
  • Front-to-back airflow: < 53 dBA

Power specifications

Power source type

AC/DC/high-voltage DC

AC power input
  • Rated input voltage range: 100 V AC to 240 V AC, 50/60 Hz
  • Maximum input voltage range: 90 V AC to 290 V AC, 47 Hz to 63 Hz

DC power input
  • Rated voltage range: -48 V DC to -60 V DC
  • Maximum voltage range: -38.4 V DC to -72 V DC

High-voltage DC power input
  • Rated voltage of 240 V high-voltage DC power input: 240 V DC
  • Maximum voltage range of 240 V high-voltage DC power input: 188 V DC to 290 V DC
  • Rated voltage range of 380 V high-voltage DC power input: 240 V DC to 380 V DC
  • Maximum voltage range of 380 V high-voltage DC power input: 188 V DC to 400 V DC

Rated input current
  • 600 W AC&240 V DC power module (PAC-600WB series): 8 A (100 V AC to 240 V AC)/4 A (240 V DC)
  • 600 W high-voltage DC power module (PHD-600WA series): 4 A (240 V DC to 380 V DC)
  • 1200 W DC power (PDC-1K2WA series): 38 A (-48 V DC to -60 V DC)

Chassis power consumption

Maximum power consumption

346 W

Typical power consumption

219 W (100% throughput, 3 m Ethernet cables on 48 ports and QSFP+ cables on 6 ports, double power modules)

Chassis heat dissipation

Maximum heat dissipation

1181 BTU/hr

Typical heat dissipation

747 BTU/hr (100% throughput, 3 m Ethernet cables on 48 ports and QSFP+ cables on 6 ports, double power modules)

Surge protection

Ethernet electrical ports: 2 kV in common mode

Power module:
  • AC: 4 kV in common mode and 2.5 kV in differential mode
  • DC: 4 kV in common mode and 2 kV in differential mode

Heat dissipation

Heat dissipation mode

Air cooling

Airflow

Front-to-back or back-to-front, depending on the fan modules and power modules

Reliability and availability

Power module backup

1+1 backup

Fan module backup

1+1 backup not supported

NOTE:

A CE6800 chassis uses two fan modules, with each fan module containing two fans. The four fans in the chassis work in 3+1 backup mode.

Hot swap

Supported by all power modules and fan modules

Mean time between failures (MTBF)

54.48 years

Mean time to repair (MTTR)

1.81 hours

Availability

0.99999620929

Technical specifications

Processor

1.2 GHz, quad-core

DRAM Memory

4 GB

NOR Flash

16 MB

NAND Flash

1 GB

Stack

Service port supporting the stack function

10GE electrical ports and 40GE optical ports

Certification
  • Safety standards compliance
  • EMC standards compliance
  • Environmental standards compliance

Ordering Information

Ordering information is subject to change without notice in the case of product upgrades. Ordering information provided in this manual is for reference only. To obtain latest ordering information, contact Huawei switch distributors or local Huawei representative office.

Table 2-207 provides the ordering information.

Table 2-207 Ordering information

Part Number

Part Model

Part Description

02351LVC

CE6856-48T6Q-HI

CE6856-48T6Q-HI Switch (48-Port 10GE RJ45, 6-Port 40GE QSFP+, Without Power Module and FAN Box)

02351YPR

CE6856-HI-F-B00

CE6856-48T6Q-HI Switch (48-Port 10GE RJ45, 6-Port 40GE QSFP+, 2*AC Power Module, 2*FAN Box, Port-side Exhaust)

02351YPQ

CE6856-HI-B-B00

CE6856-48T6Q-HI Switch (48-Port 10GE RJ45, 6-Port 40GE QSFP+, 2*AC Power Module, 2*FAN Box, Port-side Intake)
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Updated: 2020-12-24

Document ID: EDOC1000019246

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