CE6857-48S6CQ-EI

CloudEngine 8800, 7800, 6800, and 5800 Series Switches Hardware Description (Versions earlier than V200R020C00)

This document provides an overall description of the CE5800&6800&7800&8800 series switches hardware that versions earlier than V200R020C00, helping you obtain detailed information about each chassis, power module, fan module, card, cable, and pluggable modules for ports.

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CE6857-48S6CQ-EI

Version Mapping

Table 2-201 lists the mappings between the CE6857-48S6CQ-EI and software versions.

Table 2-201 Version mapping

Device Series	Sub-series	Device Model	Short Name	Supported Version
CE6800	CE6857	CE6857-48S6CQ-EI	CE6857EI	V200R005C10 to V200R019C10 NOTE: This model is not supported in V200R005C20.

Appearance and Structure

The figures in this document are for reference only.

Figure 2-90 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: FAN-031A series fan modules
7	Fan slot 2 Applicable fan modules: FAN-031A series fan modules	8	Fan slot 3 Applicable fan modules: FAN-031A series fan modules
9	Fan slot 4 Applicable fan modules: FAN-031A series fan modules	10	Power supply slot 1 Applicable power modules: 350 W DC Power Module (PDC350S12) 600 W AC Power Module (PAC600S12)
11	Power supply slot 2 Applicable power modules: 350 W DC Power Module (PDC350S12) 600 W AC Power Module (PAC600S12)	12	Forty-eight 10GE SFP+ Ethernet optical ports Applicable modules and cables: 10GE SFP+ Optical Modules (OSXD22N00, LE2MXSC80FF0 and SFP-10G-ZDWT-L not supported) GE eSFP Optical Modules(Auto-negotiation is not supported) GE SFP Copper Modules (works at 1000 Mbit/s) SFP+ to SFP+ AOC Cable SFP+ to SFP+ High-Speed Cable 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: 40GE QSFP+ Optical Modules 100GE QSFP28 Optical Modules (QSFP28-100G-4WDM-40 not supported) QSFP+ to QSFP+ AOC cable QSFP+ to QSFP+ High-Speed Cable QSFP28 to QSFP28 AOC Cable QSFP28 to QSFP28 High-Speed Cable	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 2-91 (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 2-92 (using a CE6863 chassis as an example).

Figure 2-91 Front-to-back airflow for port-side exhaust

Figure 2-92 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 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 CE6865-48S8CQ-EI. The CE6865-48S8CQ-EI 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 2-202 describes the attributes of a 10GE SFP+ Ethernet optical port.

Table 2-202 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 2-203 describes the attributes of a 40GE/100GE QSFP28 optical port.

Table 2-203 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 2-204 describes the attributes of the console port.

Table 2-204 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 2-205 describes the attributes of the ETH management port (RJ45).

Table 2-205 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 2-206 lists technical specifications of the CE6857-48S6CQ-EI switch.

Table 2-206 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
Chassis power consumption	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
Chassis heat dissipation	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
Heat dissipation	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 3+1 backup of 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 2-207 provides the ordering information.

Table 2-207 Ordering information

Part Number	Part Model	Part Description
02352CHR	CE6857-EI-B-B0B	CE6857-48S6CQ-EI switch (4810GE SFP+, 6100GE QSFP28, 2AC power modules, 4fan modules, port-side intake)
02352CHS	CE6857-EI-F-B0B	CE6857-48S6CQ-EI switch (4810GE SFP+, 6100GE QSFP28, 2AC power modules, 4fan modules, port-side exhaust)
02352CHQ	CE6857-48S6CQ-EI	CE6857-48S6CQ-EI switch (4810GE SFP+, 6100GE QSFP28, without fan and power modules)

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Updated: 2021-06-01

Document ID: EDOC1000019246

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