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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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CE6857-48S6CQ-EI

CE6857-48S6CQ-EI

Version Mapping

Table 2-208 lists the mappings between the CE6857-48S6CQ-EI and software versions.

Table 2-208 Version mapping

Device Series

Sub-series

Device Model

Short Name

Supported Version

CE6800

CE6857

CE6857-48S6CQ-EI

CE6857EI

V200R005C10~V200R019C10

NOTE:

This model is not supported in V200R005C20.

Appearance and Structure

The figures in this document are for reference only.

Figure 2-91 CE6857-48S6CQ-EI

1

Ground screw

2
Equipment serial number (ESN)
NOTE:

You can scan the code to view the ESN and MAC address of the switch.

3

Console port

4

ETH management port (RJ45)

5

USB port

6

Fan slot 1

Applicable fan modules:

7

Fan slot 2

Applicable fan modules:

8

Fan slot 3

Applicable fan modules:

9

Fan slot 4

Applicable fan modules:

10

Power supply slot 1

Applicable power modules:

11

Power supply slot 2

Applicable power modules:

12

Forty-eight 10GE SFP+ Ethernet optical ports

Applicable modules and cables:
NOTE:

A 10GE optical interface does not support auto-negotiation when it has a GE optical module installed. To connect the two interfaces at both ends of a link, disable auto-negotiation on the peer interface. Otherwise, one interface may go Up and the other may go Down.

13

Six 40GE/100GE QSFP28 Ethernet optical ports

Applicable modules and cables:

14

Three port-side mounting holes for mounting brackets

15

Two middle mounting holes for mounting brackets

16

Equipotential junction

Grounding screw used in dual OT scenarios.

17

Four power-supply-side mounting holes for mounting brackets

-

-

Slot Description

Power Slots

Each of the CloudEngine 6800 series switches has two power module slots and supports pluggable power modules. A chassis can use one or two power modules. In particular, dual power modules provide higher reliability.

The CloudEngine 6800 series switches support 1+1 backup of power modules.
  • When both power modules are working properly, each of them provides half of the power required for the chassis.
  • When one power module fails, the other one provides all power required for the chassis.
All power modules of the devices are hot swappable.

Fan Slots

Each of the CloudEngine 6800 series switches has four fan slots in which fan modules can be installed to cool the chassis, ensuring efficient heat dissipation and system stability.

It is recommended that four fan modules be properly installed on a switch to ensure normal switch operating. The device supports four pluggable fan modules that work in hot standby mode. The system can operate properly for a short time after a single fan module fails. You are advised to replace the faulty fan module immediately.

All fan modules are hot swappable.

Heat Dissipation System

The cooling system of the CloudEngine 6800 series switches uses front-to-back or back-to-front airflow depending on the airflow direction of the power modules and fan modules used.

  • Front-to-back airflow: Power modules and fan modules with front-to-back airflow are identified by . Air flows into the chassis from the power supply side and is exhausted from the port side, as shown in Figure 2-92 (using a CE6863 chassis as an example).
  • Back-to-front airflow: Power modules and fan modules with back-to-front airflow are identified by . Air flows into the chassis from the port side and is exhausted from the power supply side, as shown in Figure 2-93 (using a CE6863 chassis as an example).
Figure 2-92 Front-to-back airflow for port-side exhaust
Figure 2-93 Back-to-front airflow for port-side intake
The airflow direction of the power modules and fan modules required on the CloudEngine 6800 series switches depends on how the device is installed in a cabinet. Typically, cabinets in a data center have cold air flowing in from the front and hot air exhausted from the back. If a switch is installed with the power supply side facing the front and the port side facing the back, the switch needs to adopt fan modules and power modules with front-to-back airflow.

Power modules and fan modules using forced air cooling on a switch must have the same airflow direction. If a switch adopts power modules with back-to-front airflow, the switch must use fan modules with back-to-front airflow as well.

Indicators

The CE6857-48S6CQ-EI switch does not have the Mini USB port indicator and ETH management port indicator. The service port indicators are 10GE and 40GE/100GE 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

10GE SFP+ Ethernet Optical Port

A 10GE SFP+ Ethernet optical port supports auto-sensing to 1 Gbit/s, and can receive and send services at a rate of 1000 Mbit/s or 10 Gbit/s. Table 2-209 describes the attributes of a 10GE SFP+ Ethernet optical port.
Table 2-209 Attributes of a 10GE SFP+ Ethernet optical port

Attribute

Description

Connector type

LC

Optical attributes

Depending on the module or cable in use

Standards compliance

IEEE802.3ae

Working mode

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

Full-duplex

40GE/100GE QSFP28 Optical Port

Table 2-210 describes the attributes of a 40GE/100GE QSFP28 optical port.
Table 2-210 Attributes of a 40GE/100GE QSFP28 optical port

Attribute

Description

Connector type

Depending on the optical module

Optical 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 2-211 describes the attributes of the console port.
Table 2-211 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

ETH Management Port (RJ45)

The ETH management port (RJ45) of a switch is connected to the network port of a configuration terminal or network management workstation to set up the onsite or remote configuration environment. The ETH management port (RJ45) uses a Category 5 or higher category cable. Table 2-212 describes the attributes of the ETH management port (RJ45).
Table 2-212 Attributes of the ETH management port (RJ45)

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

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 2-213 lists technical specifications of the CE6857-48S6CQ-EI switch.

Table 2-213 Technical specifications

Item

Description

Physical specifications
  • Dimensions (W x D x H): 442.0 mm x 420.0 mm x 43.6 mm (17.4 in. x 16.5 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): 7.6 Kg (16.76 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: < 52 dBA

Power specifications

Power source type

AC

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

Not supported

Rated input current

  • 350 W DC power (PDC350S12 series): 11 A (-48 V DC to -60 V DC)

  • 600 W AC power (PAC600S12 series): 9 A (100 V AC to 240 V AC)

Chassis power consumption

Maximum power consumption

287 W

Typical power consumption

152 W (100% throughput, SFP28 cables on 48 ports and QSFP28 cables on 6 ports, double power modules)

195 W (100% throughput, all optical interfaces on the switch are equipped with the short-distance optical modules, double power modules)

Chassis heat dissipation

Maximum heat dissipation

979 BTU/Hr

Typical heat dissipation

519 BTU/Hr (100% throughput, SFP28 cables on 48 ports and QSFP28 cables on 6 ports, double power modules)

665 BTU/Hr (100% throughput, all optical interfaces on the switch are equipped with the short-distance optical modules, double power modules)

Surge protection
Power module:
  • AC: 6 kV in common mode and 6 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

Power module backup

1+1 backup

Fan module backup

The device supports four pluggable fan modules that work in hot standby mode. The system can operate properly for a short time after a single fan module fails. You are advised to replace the faulty fan module immediately.

Hot swap

Supported by all power modules and fan modules

Mean time between failures (MTBF)

45.3 years

Mean time to repair (MTTR)

1.68 hours

Availability

0.99999576002

Technical specifications

Processor

1.4 GHz, four-core

DRAM Memory

4 GB

NOR Flash

64 MB

NAND Flash

2 GB

Stack

Service port supporting the stack function

10GE optical ports, 40GE optical ports, and 100GE 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 2-214 provides the ordering information.

Table 2-214 Ordering information

Part Number

Part Model

Part Description

02352CHR

CE6857-EI-B-B0B

CE6857-48S6CQ-EI switch (48*10GE SFP+, 6*100GE QSFP28, 2*AC power modules, 4*fan modules, port-side intake)

02352CHS

CE6857-EI-F-B0B

CE6857-48S6CQ-EI switch (48*10GE SFP+, 6*100GE QSFP28, 2*AC power modules, 4*fan modules, port-side exhaust)

02352CHQ

CE6857-48S6CQ-EI

CE6857-48S6CQ-EI switch (48*10GE SFP+, 6*100GE QSFP28, without fan and power modules)
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Updated: 2020-12-24

Document ID: EDOC1000019246

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