Version Mapping
Table 2-170 lists the mappings between the CE6855-48S6Q-HI and software versions.
Appearance and Structure
The figures in this document are for reference only.
| 1 | Power supply slot 1
Applicable power modules:
|
2 | Power supply slot 2
Applicable power modules:
|
| 3 | Fan slot 1
Applicable fan modules:
|
4 | Fan slot 2
Applicable fan modules:
|
| 5 | Console port | 6 | ETH management port (RJ45) |
| 7 |
Barcode label NOTE: This label is drawable, and you can pull it outward to view the ESN barcode and MAC address of the switch. |
8 | USB port |
| 9 | Forty-eight 10GE SFP+ Ethernet optical ports
Applicable modules and cables:
|
10 | 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:
|
| 11 | Three port-side mounting holes for mounting brackets | 12 | Four power-supply-side mounting holes for mounting brackets |
| 13 | Ground screw | – | – |
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 2-77 (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 2-78 (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.
Indicators
The CE6855-48S6Q-HI does not have a mode switch button and the STAT/SPEED/STACK mode indicator. The downlink service port indicators of the CE6855-48S6Q-HI are 10GE optical port indicators, and other indicators on the CE6855-48S6Q-HI are the same as those on the CE6850-48T4Q-EI. The CE6850-48T4Q-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 2-171 describes the attributes of a 10GE SFP+ Ethernet optical port.
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 2-172 describes the attributes of a 40GE QSFP+ Ethernet optical port.
Console Port
The console port is connected to a console for onsite configuration. The port must use a console cable. Table 2-173 describes the attributes of the console port.
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 2-174 describes the attributes of the ETH management port (RJ45).
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 2-175 lists technical specifications of the CE6855-48S6Q-HI switch.
Table 2-175 Technical specifications
| Item | Description | |
|---|---|---|
| Physical specifications |
|
|
| Environment parameters | Temperature |
|
| Relative humidity | 5% RH to 95% RH, noncondensing | |
| Altitude | < 5000 m (16404 ft.) | |
| Noise (sound pressure, 27°C) |
|
|
| Power specifications | Power source type | AC/DC |
| AC power input |
|
|
| DC power input |
|
|
| High-voltage DC power input | Not supported | |
| Rated input current |
|
|
| Chassis power consumption | Maximum power consumption | 216 W |
| Typical power consumption | 116 W (100% throughput, SFP+ cables on 48 ports and QSFP+ cables on 6 ports, double power modules) | |
| Chassis heat dissipation | Maximum heat dissipation | 737 BTU/hr |
| Typical heat dissipation | 396 BTU/hr (100% throughput, SFP+ cables on 48 ports and QSFP+ cables on 6 ports, double power modules) | |
| Surge protection |
Power module:
|
|
| 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) | 48.83 years | |
| Mean time to repair (MTTR) | 1.73 hours | |
| Availability | 0.99999595166 | |
| Technical specifications | Processor | 1.2 GHz, quad-core |
| DRAM Memory | 2 GB | |
| NOR Flash | 16 MB | |
| NAND Flash | 1 GB | |
| Stack | Service port supporting the stack function | 10GE optical ports and 40GE optical ports |
| Certification |
|
|
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 2-176 provides the ordering information.
Table 2-176 Ordering information
| Part Number | Part Model | Part Description |
|---|---|---|
| 02350RTC | CE6855-HI-B-B0A | CE6855-48S6Q-HI Switch (48-Port 10G SFP+, 6-Port 40GE QSFP+, 2*AC Power Module, 2*FAN Box, Port-side Intake) |
| 02350WVA | CE6855-HI-B-B0B | CE6855-48S6Q-HI Switch (48-Port 10G SFP+, 6-Port 40GE QSFP+, 2*AC Power Module, 2*FAN Box, Port-side Intake, 4m Ground Wire) |
| 02350RTB | CE6855-HI-F-B0A | CE6855-48S6Q-HI Switch (48-Port 10G SFP+, 6-Port 40GE QSFP+, 2*AC Power Module, 2*FAN Box, Port-side Exhaust) |
| 02350SRQ | CE6855-48S6Q-HI | CE6855-48S6Q-HI Switch (48-Port 10G SFP+, 6-Port 40GE QSFP+, Without Power Module and FAN Box) |