CE6875-48S4CQ-EI
Version Mapping
Table 2-262 lists the mappings between the CE6875-48S4CQ-EI and software versions.
Appearance and Structure
The figures in this document are for reference only.
1 |
Ground screw |
2 |
Two ETH management ports (combo) Applicable transceiver 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 |
10 |
Power supply slot 2 |
11 |
Two BITS ports BITS ports on the device connect to BITS devices or BITS ports of other products to synchronize the time and clock. Functions of the two BITS ports are:
NOTE:
The CE6875–48S4CQ-EI switch does not support time and clock synchronization. |
12 |
Forty-eight 10GE SFP+ Ethernet optical ports Applicable transceiver modules and cables:
|
13 |
Four 40GE/100GE QSFP28 Ethernet optical ports NOTE:
A QSFP28 Ethernet optical port can be split into four 10GE or 25GE ports. QSFP28 optical ports support QSFP28 high-speed cables of 1 m. Applicable modules and cables:
|
14 |
Three port-side mounting holes for mounting brackets |
15 |
Four middle mounting holes for mounting brackets |
16 |
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.
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
- 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 2-125 (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 2-126 (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
Indicators on the CE6875-48S4CQ-EI 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
40GE/100GE QSFP28 Optical Port
BITS Port
Attribute |
Description |
---|---|
Connector type |
RJ45 |
Working mode |
Clock synchronization mode: full-duplex Time synchronization mode: half-duplex |
Frame format |
Time synchronization:
Clock synchronization:
|
Standards compliance |
Time synchronization:
Clock synchronization:
|
Cables used |
Time synchronization mode: time synchronization network cable, which is a straight through network cable with the RS422 interface level Clock synchronization mode: E1/T1 cable, which is a 120-ohm balanced cable For details about cable parameters, see Clock Cable. |
Console Port
ETH Management Port (Combo)
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.
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 CE6875EI switches have 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 CE6875EI 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 2-268 lists technical specifications of the CE6875-48S4CQ-EI switch.
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/high-voltage DC |
AC power input |
|
|
DC power input |
|
|
High-voltage DC power input |
|
|
Rated input current |
|
|
Chassis power consumption |
Maximum power consumption |
407 W |
Typical power consumption |
273 W (100% throughput, SFP+ cables on 48 ports and QSFP+ cables on 4 ports, double power modules) |
|
Chassis heat dissipation |
Maximum heat dissipation |
1389 BTU/hr |
Typical heat dissipation |
932 BTU/hr (100% throughput, SFP+ cables on 48 ports and QSFP+ cables on 4 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 |
Not supported |
|
Hot swap |
Supported by all power modules and fan modules |
|
Mean time between failures (MTBF) |
36.8 years |
|
Mean time to repair (MTTR) |
1.89 hours |
|
Availability |
0.99999339538 |
|
Technical specifications |
Processor |
1.5 GHz, eight-core |
DRAM Memory |
8 GB |
|
NOR Flash |
32 MB |
|
NAND Flash |
2 GB |
|
Stack |
Service port supporting the stack function |
10GE optical ports and 100GE 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 2-269 provides the ordering information.
Part Number |
Part Model |
Part Description |
---|---|---|
02351MEA |
CE6875-48S4CQ-EI |
CE6875-48S4CQ-EI Switch (48-Port 10GE SFP+, 4-Port 100GE QSFP28, Without Fan and Power Module) |
02351MEC |
CE6875-EI-F-B0A |
CE6875-48S4CQ-EI Switch (48-Port 10GE SFP+, 4-Port 100GE QSFP28, 2*AC Power Module, 2*FAN Box, Port-side Exhaust) |
02351MEE |
CE6875-EI-B-B0A |
CE6875-48S4CQ-EI Switch (48-Port 10GE SFP+, 6-Port 100GE QSFP28, 2*AC Power Module, 2*FAN Box, Port-side Intake) |