The Huawei CE5855-EI-B-B00 network switch provides 48 Gigabit Ethernet ports, 4 10GbE SFP+ ports, and 2 40GbE QSFP+ ports. It supports up to 16 switches in a stack and TRILL. The switch has a switching capacity of 336Gbps and can be used as an access, aggregation, or data center fabric switch. It uses the VRP8 software and has hot-swappable power and fan modules.
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1.Wireless Communication System_Wireless communication is a broad term that i...JeyaPerumal1
Wireless communication involves the transmission of information over a distance without the help of wires, cables or any other forms of electrical conductors.
Wireless communication is a broad term that incorporates all procedures and forms of connecting and communicating between two or more devices using a wireless signal through wireless communication technologies and devices.
Features of Wireless Communication
The evolution of wireless technology has brought many advancements with its effective features.
The transmitted distance can be anywhere between a few meters (for example, a television's remote control) and thousands of kilometers (for example, radio communication).
Wireless communication can be used for cellular telephony, wireless access to the internet, wireless home networking, and so on.
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# Internet Security: Safeguarding Your Digital World
In the contemporary digital age, the internet is a cornerstone of our daily lives. It connects us to vast amounts of information, provides platforms for communication, enables commerce, and offers endless entertainment. However, with these conveniences come significant security challenges. Internet security is essential to protect our digital identities, sensitive data, and overall online experience. This comprehensive guide explores the multifaceted world of internet security, providing insights into its importance, common threats, and effective strategies to safeguard your digital world.
## Understanding Internet Security
Internet security encompasses the measures and protocols used to protect information, devices, and networks from unauthorized access, attacks, and damage. It involves a wide range of practices designed to safeguard data confidentiality, integrity, and availability. Effective internet security is crucial for individuals, businesses, and governments alike, as cyber threats continue to evolve in complexity and scale.
### Key Components of Internet Security
1. **Confidentiality**: Ensuring that information is accessible only to those authorized to access it.
2. **Integrity**: Protecting information from being altered or tampered with by unauthorized parties.
3. **Availability**: Ensuring that authorized users have reliable access to information and resources when needed.
## Common Internet Security Threats
Cyber threats are numerous and constantly evolving. Understanding these threats is the first step in protecting against them. Some of the most common internet security threats include:
### Malware
Malware, or malicious software, is designed to harm, exploit, or otherwise compromise a device, network, or service. Common types of malware include:
- **Viruses**: Programs that attach themselves to legitimate software and replicate, spreading to other programs and files.
- **Worms**: Standalone malware that replicates itself to spread to other computers.
- **Trojan Horses**: Malicious software disguised as legitimate software.
- **Ransomware**: Malware that encrypts a user's files and demands a ransom for the decryption key.
- **Spyware**: Software that secretly monitors and collects user information.
### Phishing
Phishing is a social engineering attack that aims to steal sensitive information such as usernames, passwords, and credit card details. Attackers often masquerade as trusted entities in email or other communication channels, tricking victims into providing their information.
### Man-in-the-Middle (MitM) Attacks
MitM attacks occur when an attacker intercepts and potentially alters communication between two parties without their knowledge. This can lead to the unauthorized acquisition of sensitive information.
### Denial-of-Service (DoS) and Distributed Denial-of-Service (DDoS) Attacks
1. CE5855-EI-B-B00 (02350GTW)
Datasheet
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Overview
Huawei CE5855-EI-B-B00 provides 48*GE line-speed ports plus 4*10 GE and 2*40G upstream ports for stacking up to 16 switches. 10 GE and 40G ports enable creation of
a non-blocking stack that can extend across geographical distances between data centers. Using the Huawei VRP8 software platform, CE5800 switches support Transparent
Interconnection of Lots of Links (TRILL) and have a high stacking capability (up to 16-member switches in a stack system). In addition, the airflow direction (front-to-back or
back-to-front) can be changed. CE5800 switches can work with CE12800 switches to build an elastic, virtualized, high-quality fabric that meets the requirements of
cloud-computing data centers. CE5800 switches provide high-density GE access to help enterprises build a scalable data center network platform for cloud computing. They
can also be used as aggregation or access switches for enterprise campus networks.
Quick Specification
Table 1 shows the Quick Specification.
Model CE5855-EI-B-B00
Part Number 02350GTW
Description 48-Port GE RJ45, 4-Port 10G SFP+, 2-Port 40G QSFP+, 2*AC Power Module, 2*FAN Box, Port-side Intake
Software Version V100R005C10 and later
Base-T Ports 48
SFP+ Ports 4
QSFP+ Ports 2
Switching Capacity 336 Gbit/s
Forwarding Rate 252 Mpps
Power module type Pluggable AC or DC power module, 1+1 backup supported
Rated voltage range
100 V AC to 240 V AC, 50/60 Hz
-48 V DC to -60 V DC
Maximum power consumption 103W
Airflow Front-to-back or back-to-front, depending on the fan modules and power modules used in the chassis
Dimensions (W x D x H) 442 mm x 420 mm x 43.6 mm
Weight (fully loaded) 8.4 kg (18.5 lb)
2. CE5855-EI-B-B00 (02350GTW)
Datasheet
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Figure 1 shows the appearance of CE5855-EI-B-B00.
Product Details
Figure 2 shows the CE5855-EI-B-B00 front view (port side).
Note:
(1) Forty-eight 10/100/1000BASE-T Ethernet electrical ports
(2) Four 10GE SFP+ Ethernet optical ports
(3) Two 40GE QSFP+ Ethernet optical ports
Figure 3 shows the CE5855-EI-B-B00 rear view (power supply side).
Note:
(1) Power supply slot 1 (5) Fan slot 2
(2) Fan slot 1 (6) Power supply slot 2
3. CE5855-EI-B-B00 (02350GTW)
Datasheet
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(3) Console port (7) USB port
(4) Barcode label (8) ETH management port (RJ45)
The Modules
Table 2 shows the recommended elements for the CE5855-EI-B-B00.
Model Description
GE-SFP Optical Transceiver
eSFP-GE-SX-MM850 Optical Transceiver, eSFP, GE, Multi-mode Module (850nm, 0.55km, LC)
SFP-GE-LX-SM1310 Optical Transceiver, eSFP, GE, Single-mode Module (1310nm, 10km, LC)
S-SFP-GE-LH40-SM1310 Optical Transceiver, eSFP, GE, Single-mode Module (1310nm, 40km, LC)
S-SFP-GE-LH40-SM1550 Optical Transceiver, eSFP, GE, Single-mode Module (1550nm, 40km, LC)
10G-SFP+ Optical Transceiver
SFP-10G-USR 10GBase-USR Optical Transceiver, SFP+, 10G, Multi-mode Module (850nm, 0.1km, LC)
OMXD30000 Optical Transceiver, SFP+, 10G, Multi-mode Module (850nm, 0.3km, LC)
GE Copper Transceiver
SFP-1000BaseT Electrical Transceiver, SFP, GE, Electrical Interface Module (100m, RJ45)
FAN-040A
FAN-040A-F Huawei Fan box (F, FAN panel side intake) FAN-040A-F
FAN-040A-B Huawei Fan box (B, FAN panel side exhaust) FAN-040A-B
Compare to Similar Items
Table 3 shows the comparison of CE5855-EI-B-B00 and CE5855-24T4S2Q-EI-F.
Model CE5855-EI-B-B00 CE5855-24T4S2Q-EI-F
Software Version V100R005C10 and later V100R005C10 and later
Base-T Ports 48 24
SFP+ Ports 4 4
QSFP+ Ports 2 2
Switching Capacity 336 Gbit/s 288 Gbit/s
Forwarding Rate 252 Mpps 215 Mpps
Maximum power consumption 103W 75W
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4. CE5855-EI-B-B00 (02350GTW)
Datasheet
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Specification
CE5855-EI-B-B00 Specification
Model CE5855-EI-B-B00
Part Number 02350GTW
Description 48-Port GE RJ45, 4-Port 10G SFP+, 2-Port 40G QSFP+, 2*AC Power Module, 2*FAN Box, Port-side Intake
Software Version V100R005C10 and later
Base-T Ports 48
SFP+ Ports 4
QSFP+ Ports 2
Switching Capacity 336 Gbit/s
Forwarding Rates 252 Mpps
Airflow Design Front-to-back or back-to-front
Device Virtualization
iStack
Super Virtual Fabric (SVF)
Network Virtualization
M-LAG
TRILL (CE5855 & CE5850)
Programmability Open Programmability System (OPS)
Traffic Analysis
NetStream
sFlow
VLAN
Adding access, trunk, and hybrid interfaces to VLANs
Default VLAN
QinQ
MUX VLAN
GVRP
ACL
ingress: 9k
egress: 2k
MAC Address Table
maximum: 64k
Dynamic learning and aging of MAC addresses
Static, dynamic, and black hole MAC address entries
Packet filtering based on source MAC addresses
MAC address limiting based on ports and VLANs
ARP (maximum) 54k
ND (Maximum) 16k
IPv4 FIB (maximum) 32k
IP Routing
IPv4 routing protocols, such as RIP, OSPF, BGP, and IS-IS
IPv6 routing protocols, such as RIPng, OSPFv3, IS-ISv6, and BGP4+
IPv6 FIB (maximum) 16k
5. CE5855-EI-B-B00 (02350GTW)
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IPv6
IPv6 Neighbor Discovery (ND)
Path MTU Discovery (PMTU)
TCP6, ping IPv6, tracert IPv6, socket IPv6, UDP6, and Raw IP6
Multicast FIB (maximum) 2k
Multicast
IGMP, PIM-SM, PIM-DM, MSDP, and MBGP
IGMP snooping
Fast leave of multicast member interfaces
Multicast traffic suppression
Multicast VLAN
Reliability
LACP
STP, RSTP, VBST, MSTP
BPDU protection, root protection, and loop protection
Smart Link and multi-instance
DLDP
ERPS (G.8032)
VRRP, VRRP load balancing, and BFD for VRRP
BFD for BGP/IS-IS/OSPF/Static route
QoS
Traffic classification based on Layer 2 headers, Layer 3 protocols, Layer 4 protocols, and 802.1p priority
Actions of ACL, CAR, re-marking, and scheduling
Queue scheduling algorithms, including PQ, WRR, DRR, PQ + WRR, and PQ + DRR
Congestion avoidance mechanisms, including WRED and tail drop
Traffic shaping
Configuration and Maintenance
Console, Telnet, and SSH terminals
Network management protocols, such as SNMP v1/v2c/v3
File upload and download through FTP and TFTP
BootROM upgrade and remote upgrade
802.3az Energy Efficient Ethernet (EEE)
Hot patches
User operation logs
Zero-Touch Provisioning (ZTP)
Security and Management
802.1x authentication
Command line authority control based on user levels, preventing unauthorized users from using commands
DoS, ARP, and ICMP attack defenses
Port isolation, port security, and sticky MAC
Binding of the IP address, MAC address, interface number, and VLAN ID
Authentication methods, including AAA, RADIUS, and HWTACACS
Remote Network Monitoring (RMON)
Dimensions (W x D x H) 442 mm x 420 mm x 43.6 mm
Weight (fully loaded) 8.4 kg (18.5 lb)
Environmental Parameters
Operating temperature: 0°
C to 40°
C (32°
F to 104°
F) (0m to 1,800m)
Storage temperature: -40°
C to 70°
C (-40°
F to 158°
F)
Relative humidity: 5% to 95%, non-condensing
Operating Voltage
AC: 90V to 264V
DC: -38.4V to -72V
6. CE5855-EI-B-B00 (02350GTW)
Datasheet
Buy Huawei, Cisco, Zte, Hpe, Dell, Fortinet Network Equipment
Online In China At Low Price! www.hi-network.com
Maximum Power Consumption 103W
Want to Buy
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