Send Message
Chengdu Shuwei Communication Technology Co., Ltd.
Chengdu Shuwei Communication Technology Co., Ltd.
news
Home /

China Chengdu Shuwei Communication Technology Co., Ltd. Company News

Latest company new about Network Flow Monitoring Explained: NetFlow vs IPFIX
2024/03/18

Network Flow Monitoring Explained: NetFlow vs IPFIX

Netflow (Network Data Flow Detection Protocol) With the software system upgrade and the maturity of the vulnerability repair scheme, the virus attack mode that directly invades the host for damage is gradually reduced, and then turns to malicious consumption of limited network resources, causing network congestion, thus destroying the ability of the system to provide external services. In response to such attacks, the industry has proposed a method of detecting network data Flow to judge network anomalies and attacks. By detecting network data flow information in real time, network managers can check the status of the whole network in real time by matching the historical pattern (to judge whether it is normal) or the abnormal pattern (to judge whether it is attacked). Detect possible bottlenecks in network performance, and automatically handle or alarm display to ensure efficient and reliable network operation. Netflow technology was first invented by Darren Kerr and Barry Bruins of Cisco in 1996 and registered as a US patent in May of the same year. Netflow technology is first used in network equipment to accelerate data exchange, and can realize the measurement and statistics of high-speed forwarded IP data flow. After years of technological evolution, the original function of Netflow for data exchange acceleration has been gradually replaced by dedicated ASIC chips in network devices, while the function of measuring and statistics of IP data flow through network devices is still retained. It has become the most recognized industry standard for IP/MPLS traffic analysis, statistics and billing in the Internet field. Netflow technology can analyze and measure the detailed behavior pattern of IP/MPLS network traffic, and provide detailed statistics of network operation. The Netflow system consists of three main parts: the Exporter, the Collector, and the Analysis reporting system. Exporter: monitors network data Collector: Used to collect network data exported from Exporter Analysis: Used to analyze the network data collected from the Collector and generate reports   By analyzing the information collected by Netflow, network administrators can know the source, destination, network service type of packets, and the cause of network congestion. It may not provide a complete record of network traffic like tcpdump does, but when put together it is much easier to manage and read. NetFlow network data output from routers and switches consists of expired data flows and detailed traffic statistics. These data flows contain the IP address associated with the source and destination of the packet, as well as the Protocol and Port used by the end-to-end session. The traffic statistics include the data flow timestamp, source and destination IP addresses, source and destination port numbers, input and output interface numbers, next hop IP addresses, total bytes in the flow, number of packets in the flow, and time stamps of the first and last packets in the flow. And front mask, packet number, etc. Netflow V9 is a new flexible and extensible Netflow data output format with template-based statistics output. Easy to add data fields that need to be output and support a variety of new functions, such as: Multicase Netflow, MPLS Aware Netflow, BGP Next Hop V9, Netflow for IPv6, and so on. In 2003, Netflow V9 was also selected as the IPFIX (IP Flow Information Export) standard by the IETF from five candidates.   IPFIX (Network Traffic Monitoring) Flow-based technology is widely used in network field, it has great value in QoS policy setting, application deployment and capacity planning. However, network administrators lack a standard format for output data streams. IPFIX (IP Flow Information Export, IP data flow information output) is a standard protocol for measuring flow information in networks published by IETF. The format defined by IPFIX is based on the Cisco Netflow V9 data output format, which standardizes the statistics and output standards of IP data flows. It is a protocol for analyzing data flow characteristics and output data in a template-based format. Therefore, it has strong scalability. If traffic monitoring requirements change, network administrators can modify the corresponding configurations without upgrading network device software or management tools. Network administrators can easily extract and view important traffic statistics stored in these network devices. For a more complete output, IPFIX uses seven key domains of network devices by default to represent network traffic per share: 1. Source IP address 2. Destination IP address 3. TCP/UDP source port 4. TCP/UDP destination port 5. Layer 3 protocol type 6. The Type of service (Type of service) byte 7. Enter a logical interface If all seven key domains in different IP packets match, the IP packets are regarded as belonging to the same traffic. By recording the characteristics of the traffic on the network, such as the traffic duration and average packet length, you can learn about the current network application, optimize the network, detect the security, and charge the traffic.   IPFIX networking architecture To sum up, IPFIX is based on the concept of Flow. A Flow refers to packets from the same subinterface with the same source and destination IP address, protocol type, source and destination port number, and ToS. The packets are usually 5-tuples. IPFIX records statistics about the stream, including the timestamp, the number of packets, and the total number of bytes. IPFIX consists of three devices: Exporter, Collector, and Analyzer. The relationships among the three devices are as follows: Export analyzes network flows, extracts qualified flow statistics, and sends the statistics to Collector. The Collector parses Export data packets and collects statistics in the database for analysis by the Analyser. The Analyser extracts statistics from the Collector, performs subsequent processing, and displays the statistics as a GUI for various services.   IPFIX application scenarios Usage-based Accounting Traffic billing in network operators is generally based on the upload and download traffic of each user. Because IPFIX can be accurate to the destination IP address, protocol port and other fields, the future traffic charging can be segmented based on the characteristics of the application service. Of course, the protocol also explains that IPFIX packet statistics are "sampled". In many applications (such as the backbone layer), the more detailed the data flow statistics are, the better. Due to the performance of network devices, the sampling rate cannot be too small, so it is not necessary to provide completely accurate and reliable traffic billing. However, at the network operator level, the billing unit is generally more than 100 megabits, and the sampling accuracy of IPFIX can meet the relevant needs. Traffic Profiling, Traffic Engineering The record output of IPFIX Exporter, IPFIX Collector can output very rich Traffic record information in the form of various charts, this is the concept of Traffic Profiling. However, just the record of information, can not take advantage of the powerful function of IPFIX, IETF also launched the concept of Traffic Engineering: in the actual operation of the network, often planned load balancing and redundant backup, but the various protocols are generally according to the predetermined route of the network planning, or protocol principles are adjusted. If IPFIX is used to monitor the traffic on the network and a large amount of data is found in a certain period of time, the network administrator can be reported to adjust the traffic, so that more network bandwidth can be allocated to related applications to reduce the uneven load. In addition, you can bind configuration rules, such as route adjustment, bandwidth allocation, and security policies, to the operations on the IPFIX Collector to automatically adjust network traffic. Attack/Intrusion Detection Attack/Intrusion detection IPFIX can detect network attacks based on traffic characteristics. For example, typical IP scanning, port scanning, DDOS attacks. The sampling standard IPFIX protocol can also use a "signature database" upgrade to block the latest network attacks, just like the general host-side virus protection. QoS Monitoring (Network Quality of Service Monitoring) Typical QoS parameters are: Packet loss condition: loss [RFC2680] one-way delay: One-way delay [RFC2679] round-trip delay: round-trip delay [RFC2681] delay variation [RFC3393] Previous technologies are difficult to monitor the above information in real time, but IPFIX's various custom fields and monitoring intervals can easily monitor the above values of various messages.   Here's an expanded table that provides more details about the differences between NetFlow and IPFIX:  
Latest company new about “Micro Burst” in Bypass Network Traffic Capture Application Scenario
2024/02/27

“Micro Burst” in Bypass Network Traffic Capture Application Scenario

In the typical NPB application scenario, the most troublesome problem for administrators is packet loss caused by the congestion of mirrored packets and NPB networks. Packet loss in NPB can cause the following typical symptoms in back-end analysis tools: An alarm is generated when the APM service performance monitoring indicator decreases, and the transaction success rate decreases The NPM network performance monitoring indicator exception alarm is generated The security monitoring system fails to detect network attacks due to event omission Loss of service behavior audit events generated by the service audit system ... As a centralized capture and distribution system for Bypass monitoring, the importance of NPB is self-evident. At the same time, the way it processes data packet traffic is quite different from the traditional live network switch, and the traffic congestion control technology of many service live networks is not applicable to NPB. How to solve NPB packet loss, let's start from the root cause analysis of packet loss to see it!   NPB/TAP Packet Loss Congestion Root Cause Analysis First of all, we analyze the actual traffic path and the mapping relationship between the system and the incoming and outgoing of the level 1 or level NPB network. No matter what kind of network topology NPB forms, as a collection system, there is a many-to-many traffic input and output relationship between "access" and "output" of the whole system.   Then we look at the business model of NPB from the perspective of ASIC chips on a single device:   Feature 1: The "traffic" and "physical interface rate" of the input and output interfaces are asymmetrical, resulting in a large number of micro-bursts is an inevitable result. In typical many-to-one or many-to-many traffic aggregation scenarios, the physical rate of the output interface is usually smaller than the total physical rate of the input interface. For example, 10 channels of 10G collection and 1 channel of 10G output; In a multilevel deployment scenario, all NPBBS can be viewed as a whole. Feature 2: ASIC chip cache resources are very limited. In terms of the currently commonly used ASIC chip, the chip with 640Gbps exchange capacity has a cache of 3-10Mbytes; A 3.2Tbps capacity chip has a cache of 20-50 mbytes. Including BroadCom, Barefoot, CTC, Marvell and other manufacturers of ASIC chips. Feature 3: The conventional end-to-end PFC flow control mechanism is not applicable to NPB services. The core of the PFC flow control mechanism is to achieve end-to-end traffic suppression feedback, and ultimately reduce the sending of packets to the protocol stack of the communication endpoint to alleviate congestion. However, the packet source of NPB services is mirrored packets, so the congestion processing strategy can only be discarded or cached.   The following is the appearance of a typical micro-burst on the flow curve:                                                                                                 Taking 10G interface as an example, in the second level traffic trend analysis diagram, the traffic rate is maintained at about 3Gbps for a long time. On the micro millisecond trend analysis chart, the traffic spike (MicroBurst) has greatly exceeded the 10G interface physical rate.   Key Techniques for Mitigating NPB Microburst Reduce the impact of asymmetric physical interface rate mismatch - When designing a network, reduce asymmetric input and output physical interface rates as much as possible. A typical method is to use a higher rate uplink interface link, and avoid asymmetric physical interface rates (for example, copying 1 Gbit/s and 10 Gbit/s traffic at the same time). Optimize the cache management policy of the NPB service - The common cache management policy applicable to the switching service is not applicable to the forwarding service of the NPB service. The cache management policy of static guarantee + Dynamic sharing should be implemented based on the features of the NPB service. In order to minimize the impact of NPB microburst under the current chip hardware environment limitation. Implement classified traffic engineering management - Implement priority traffic engineering service classification management based on traffic classification. Ensure service quality of different priority queues based on category queue bandwidths, and ensure that user sensitive service traffic packets can be forwarded without packet loss. A reasonable system solution enhances the packet caching capability and traffic shaping capability - Integrates the solution through various technical means to expand the packet caching capability of the ASIC chip. By shaping the flow at different locations, the micro-burst becomes micro-uniform flow curve after shaping.   NetTAP Micro Burst Traffic Management Solution Scheme 1 - Network-optimized cache management strategy + network-wide classified service quality priority management Cache management strategy optimized for the whole network Based on the in-depth understanding of NPB service characteristics and practical business scenarios of a large number of customers, NetTAP traffic collection products implement a set of "static assurance + dynamic sharing" NPB cache management strategy for the whole network, which has a good effect on traffic cache management in the case of a large number of asymmetric input and output interfaces. The microburst tolerance is realized to the maximum extent when the current ASIC chip cache is fixed.   Microburst processing technology - Management based on business priorities     When the traffic capturing unit is deployed independently, it can also be prioritized according to the importance of the back-end analysis tool or the importance of the service data itself. For example, among many analysis tools, APM/BPC has a higher priority than security analysis/security monitoring tools because it involves the monitoring and analysis of various indicator data of important business systems. Therefore, for this scenario, the data required by APM/BPC can be defined as high priority, the data required by security monitoring/security analysis tools can be defined as medium priority, and the data required by other analysis tools can be defined as low priority. When the collected data packets enter the input port, the priorities are defined according to the importance of the packets. Packets of higher priorities are preferentially forwarded after the packets of higher priorities are forwarded, and packets of other priorities are forwarded after the packets of higher priorities are forwarded. If packets of higher priorities continue to arrive, packets of higher priorities are preferentially forwarded. If the input data exceeds the forwarding capability of the output port for a long period of time, the excess data is stored in the cache of the device. If the cache is full, the device preferentially discards the packets of the lower order. This prioritized management mechanism ensures that key analysis tools can efficiently obtain the original traffic data required for analysis in real time.   Microburst Processing Technology - classification guarantee mechanism of the whole network service quality   As shown in the above figure, traffic classification technology is used to distinguish different services on all devices at the access layer, aggregation/core layer, and output layer, and the priorities of captured packets are re-marked. The SDN controller delivers the traffic priority policy in a centralized manner and applies it to the forwarding devices. All devices participating in the networking are mapped to different priority queues according to the priorities carried by packets. In this way, the small-traffic advanced priority packets can achieve zero packet loss. Effectively solve the packet loss problem of APM monitoring and special service audit bypass traffic services.   Solution 2 - GB-level Expansion System Cache + Traffic Shaping Scheme GB Level System Extended Cache When the device of our traffic acquisition unit has advanced functional processing capabilities, it can open up a certain amount of space in the memory (RAM) of the device as the global Buffer of the device, which greatly improves the Buffer capacity of the device. For a single acquisition device, at least GB capacity can be provided as the cache space of the acquisition device. This technology makes the Buffer capacity of our traffic acquisition unit device hundreds of times higher than that of the traditional acquisition device. Under the same forwarding rate, the maximum micro burst duration of our traffic acquisition unit device becomes longer. The millisecond level supported by traditional acquisition equipment has been upgraded to the second level, and the micro-burst time that can be withstand has been increased by thousands of times.   Multi-queue traffic shaping capability Microburst processing technology - a solution based on large Buffer caching + traffic shaping With a super-large Buffer capacity, the traffic data generated by micro-burst is cached, and the traffic shaping technology is used in the outgoing interface to achieve smooth output of packets to the analysis tool. Through the application of this technology, the packet loss phenomenon caused by micro-burst is fundamentally solved.                      
Latest company new about NetTAP® Providing Network Traffic Visibility with Bypass Switches
2024/02/21

NetTAP® Providing Network Traffic Visibility with Bypass Switches

As the world of technology continues to evolve, Network Security is becoming increasingly important. Network Security Sppliances, such as intrusion prevention systems and next-generation firewalls, are critical components of any organization's security strategy. However, as these appliances work in-line, they can become single points of failure in a live computer network. This is where bypass switches come in. A Bypass Switch, also known as a Bypass TAP, is a hardware device that provides a fail-safe access port for an in-line active security appliance. The switch removes the single point of failure by automatically switching traffic via bypass mode to keep the critical network link up. This is particularly important when appliances lose power, experience software failure, or are taken offline for updates or upgrades. At NetTAP, we specialize in network traffic visibility, network data visibility, and network packet visibility. We capture, replicate, and aggregate the inline or out of band network data traffic without any packet loss, and deliver the right packet to the right tools, such as IDS, APM, NPM, monitoring, and analysis systems.   Our bypass switches are designed to provide reliable and secure network traffic management. By using our bypass switches, your network will continue to operate even if a security appliance fails. You'll be able to ensure the continuity of your business operations, as well as the security of your data. Our bypass switches are also simple to deploy and easy to use. They're compatible with a wide range of network security appliances and can be easily integrated into your network infrastructure. Plus, our bypass switches are designed with flexibility to support different inline network security appliances, which makes them ideal for organizations of all sizes. At NetTAP, we understand that network security is critical to the success of your business. That's why we've developed bypass switches that are reliable, secure, and easy to use. With our bypass switches, you'll have peace of mind, knowing that your network is secure and that your business operations will continue even in the event of a security appliance failure. In conclusion, NetTAP's bypass switches are designed to provide network traffic visibility and security. They remove single points of failure and ensure that your network continues to operate even if a security appliance fails. Our bypass switches are easy to deploy and use, making them ideal for organizations of all sizes. So, if you're looking for reliable and secure network traffic management, look no further than Mylinking.
Latest company new about Why 5G Mobile Network Needs the Fixed Network Slicing Technology?
2024/01/29

Why 5G Mobile Network Needs the Fixed Network Slicing Technology?

Fixed Network Slicing Technology refers to the concept of partitioning a fixed network infrastructure into multiple virtual slices, each tailored to meet the specific requirements of different services or applications. It is an extension of the network slicing concept initially introduced in the context of 5G mobile networks. Network slicing allows network operators to create logically independent and isolated network instances within a shared physical network infrastructure. Each network slice can be customized with specific performance characteristics, resource allocation, and quality-of-service (QoS) parameters to meet the unique demands of different services or customer groups. In the context of fixed networks, such as broadband access networks or data center networks, network slicing can enable efficient resource utilization, improved service delivery, and better network management. By allocating dedicated virtual slices to different services or applications, operators can ensure optimal performance, security, and reliability for each slice while maximizing the utilization of network resources. Fixed network slicing technology can be particularly beneficial in scenarios where diverse services with varying requirements coexist on a shared infrastructure. For example, it can enable the coexistence of services like ultra-low latency applications for real-time communication, high-bandwidth services like video streaming, and mission-critical applications that require high reliability and security. It's worth noting that network slicing technology is continuously evolving, and new developments may have emerged since my knowledge cutoff date. Therefore, for the most up-to-date and detailed information, I recommend consulting recent research papers, industry publications, or contacting experts in the field.   How fixed network slicing could be used in practice based on the general principles of network slicing? Application Description Residential and Enterprise Services Customized network slices can be created for residential broadband, business connectivity, or IoT applications, with specific bandwidth, latency, and security characteristics tailored to each customer segment. Smart Cities Fixed network slicing can support smart city applications such as intelligent transportation, public safety, energy management, and environmental monitoring, by providing dedicated slices with specific QoS parameters for reliable communication. Virtual Private Networks Enterprises can have dedicated network slices for their virtual private networks (VPNs), allowing increased control over network resources and prioritizing their specific traffic requirements. Content Delivery Networks Network slicing can optimize content delivery in CDNs, with slices prioritizing high-bandwidth content or ensuring low-latency connections for real-time streaming services, enhancing the user experience. Cloud Computing Fixed network slicing integrated with cloud computing infrastructures can offer efficient resource allocation and isolation, with dedicated slices for different cloud services to guarantee performance and security while maximizing resource utilization.     Please note that this table is a summary based on the general principles of fixed network slicing technology, and the actual implementation and applications may vary in practice.   Example: Integrating network slicing with cloud computing infrastructures can offer several benefits in terms of resource allocation, performance optimization, and security. Here are some more details on how network slicing can be integrated with cloud computing: Integration of Network Slicing with Cloud Computing Benefits Resource Allocation Efficient resource utilization by allocating dedicated network slices with specific resource allocations (bandwidth, latency, etc.) to different cloud services or tenants. Performance Optimization Optimal performance for each cloud service by configuring network slices to prioritize high-bandwidth applications, low-latency communication, or specific QoS requirements. Service Isolation Logical isolation between cloud services or tenants, enhancing security and preventing interference between different services sharing the same physical network infrastructure. Scalability and Flexibility Scalable and flexible cloud deployments by creating additional network slices as demand grows, adapting to changing resource requirements and optimizing resource allocation dynamically. Service-Level Agreements (SLAs) Enforcement of SLAs between cloud providers and customers by associating specific SLA parameters with each network slice, ensuring agreed-upon performance, availability, and security metrics are met. Network Function Virtualization (NFV) Integration of NFV with network slicing allows dynamic allocation and management of virtualized network functions within specific slices, enabling efficient resource utilization and flexible network service deployment.     Please note that this table provides a summary of the benefits of integrating network slicing with cloud computing infrastructures. The specific implementation and benefits may vary depending on the cloud provider and the requirements of the cloud environment.
Latest company new about What is the Load Balancing of Network Packet Broker Optimizing Your Network Performance?
2024/01/23

What is the Load Balancing of Network Packet Broker Optimizing Your Network Performance?

As the world is becoming more digitally connected, managing network traffic has become a top priority for IT professionals. With the increasing number of devices and applications, understanding the network traffic usage has become increasingly important. A powerful bandwidth monitoring software is essential for network administrators to have visibility into network traffic, measure performance, ensure availability, and troubleshoot issues in real-time.     Load balancing in the context of a Network Packet Broker (NPB) refers to the distribution of network traffic across multiple monitoring or analysis tools connected to the NPB. The purpose of load balancing is to optimize the utilization of these tools and ensure efficient processing of network traffic. When network traffic is sent to the NPB, it can be divided into multiple streams and distributed among the connected monitoring or analysis tools. This distribution can be based on various criteria, such as round-robin, source-destination IP addresses, protocols, or specific application traffic. The load balancing algorithm within the NPB determines how to allocate the traffic streams to the tools.   The benefits of load balancing in an NPB include: 1- Enhanced performance: By distributing traffic evenly among the connected tools, load balancing prevents overloading of any single tool. This ensures that each tool operates within its capacity, maximizing its performance and minimizing the risk of bottlenecks.   2- Scalability: Load balancing allows for the scaling of monitoring or analysis capabilities by adding or removing tools as needed. New tools can be easily integrated into the load balancing scheme without disrupting the overall traffic distribution.   3- High availability: Load balancing can contribute to high availability by providing redundancy. If one tool fails or becomes unavailable, the NPB can automatically redirect traffic to the remaining operational tools, ensuring continuous monitoring and analysis.   4- Efficient resource utilization: Load balancing helps optimize the utilization of monitoring or analysis tools. By evenly distributing traffic, it ensures that all tools are actively involved in processing network traffic, preventing underutilization of resources.   5- Traffic isolation: Load balancing in an NPB can ensure that specific types of traffic or applications are directed to dedicated monitoring or analysis tools. This allows for focused analysis and enables better visibility into specific areas of interest.   It's worth noting that the load balancing capabilities of an NPB may vary depending on the specific model and vendor. Some advanced NPBs can provide sophisticated load balancing algorithms and granular control over traffic distribution, allowing for fine-tuning based on specific requirements and priorities.   Load balancing algorithms in Network Packet Brokers (NPBs) determine how network traffic is distributed among the connected monitoring or analysis tools. These algorithms aim to achieve an even distribution of traffic to optimize resource utilization and performance. The specific load balancing algorithm employed can vary depending on the NPB vendor and model, but here are some common techniques:   Load Balancing Algorithm Description Round-robin Sequentially distributes traffic in a cyclic manner among tools. Equal distribution of traffic. Hash-based Uses specific attributes of packets to calculate a hash value and map it to a tool for distribution. Ensures packets with the same attributes go to the same tool. Least connections Directs traffic to the tool with the fewest active connections, balancing load based on current workload. Weighted distribution Assigns different weights or priorities to tools based on capabilities or capacity, distributing traffic accordingly. Dynamic load balancing Monitors real-time metrics of tools (e.g., CPU utilization) and adjusts traffic distribution dynamically. Optimizes performance based on tool load.   It's important to note that NPBs often offer configurable load balancing options, allowing administrators to customize the algorithm and fine-tune the traffic distribution based on their specific needs and priorities. The choice of load balancing algorithm depends on factors such as the network environment, the types of traffic being monitored, and the capabilities of the monitoring or analysis tools connected to the NPB.
Latest company new about What can Network Tap do for you?
2024/01/19

What can Network Tap do for you?

    Network Taps are an essential tool for IT professionals and network administrators. A network tap is a passive or active device that creates a monitoring port on a wired Ethernet connection to allow access to all data passing over the line. It works by splicing four pairs of wires together, so it can be connected without having to disconnect the normal connections. The most common types of taps are Copper Taps, which have been designed exclusively for use with Cat5 cables and RJ45 connectors; Active Taps, which inject electronics into the transmission stream allowing manipulation of traffic and monitoring of statistics; and Fiber Optic Taps, which can provide low-loss solutions in high noise environments. Each type offers unique advantages depending on your application requirements.   One key advantage of using a network tap is its ability to monitor all traffic regardless of protocol or frequency sample rate as well as linking two networks together seamlessly without losing speed or performance while doing so – making them ideal solutions when migrating legacy systems onto larger networks in order to increase capacity and scalability. Additionally, because they do not introduce additional latency into the system they can be used in real time applications such as streaming video viewing or gaming where millisecond delays would heavily degrade user experience quality standards. Furthermore security concerns arising from cyber threats may also often dictate their installation since they allow administrators better visibility across multiple points within large scale corporate architectures thus enabling more effective countermeasures against malicious actors attempting unauthorized access events while simultaneously providing detailed logs in response timescales compatible with developing forensic evidence when required.   The main benefits associated with deploying any type of Network Tap therefore lie largely around increased visibility within organizational architecture whilst ensuring low level interruptions during operation & minimal loss throughput - offering significant cost savings versus intrusive & disruptive reconfigurations procedures coupled up with improved reaction times for responding personnel & less downtime due to analysis issues generally encountered on tightly interwoven structures . With these capabilities at hand , businesses now possess greatly extended abilities necessary for adequately meeting industry standards regarding safety measures & overall compliance whilst being able maintain stability amidst constantly shifting customer demand levels.   But, what's the difference between Passive Network Tap and Active Network Tap?   Here's a comparison table highlighting the key differences between Passive Network Taps and Active Network Taps:   Passive Network Tap Active Network Tap Power Requirement No power required Requires power Functionality Passively copies network traffic without modifying it Can modify, filter, and manipulate network traffic Network Disruption No disruption to network traffic May introduce latency or disruption to network traffic Signal Integrity Preserves original signal integrity May introduce signal degradation or loss Deployment Complexity Simple and straightforward to deploy Requires more configuration and management Cost Generally less expensive Generally more expensive Flexibility Limited in terms of functionality and customization Highly customizable and feature-rich Reliability Highly reliable due to the absence of active components Potential for failure or malfunction due to active components Security Implications Does not introduce security risks May introduce potential security vulnerabilities or attack vectors       It's important to note that the specific features and capabilities of passive and active network taps can vary depending on the manufacturer and model. This table provides a general overview of the typical characteristics associated with each type of tap.  
Latest company new about Maximizing Security and Performance with Intelligent Network Inline Bypass Switch
2024/01/16

Maximizing Security and Performance with Intelligent Network Inline Bypass Switch

  In the fast-paced world of cybersecurity, staying ahead of the ever-evolving threats and ensuring optimal network performance is a constant challenge for organizations. With the increasing adoption of inline bypass switches and taps, businesses are now able to effectively address the security and performance demands of their networks.   What can the Intelligent Network Inline Bypass Switch do for you?   The Intelligent Network Inline Bypass Switch, also known as an Inline Bypass Tap, is a crucial component in a network's security infrastructure. It provides a fail-safe solution for security tools such as Intrusion Prevention Systems (IPS) and Firewalls (FW) by allowing uninterrupted traffic flow in the event of a security tool failure or during routine maintenance. This ensures that the network remains protected at all times, even when security tools are offline.   One of the key features of the Intelligent Network Inline Bypass Switch is its ability to send heartbeat packets to security tools, allowing them to monitor the health and availability of the tools in real-time. In the event of a failure, the bypass switch can seamlessly reroute traffic, ensuring continuous network protection without any disruptions. This proactive approach to network security helps organizations stay one step ahead of potential threats.   In addition to its security benefits, the Inline Bypass Switch also plays a crucial role in optimizing network performance. By offloading traffic from security tools during routine maintenance or updates, it helps eliminate bottlenecks and reduce downtime, ensuring uninterrupted network operations. This is especially important for businesses that rely on high-speed and high-performance networks to support their operations. The Intelligent Network Inline Bypass Switch is also designed to be highly scalable, allowing organizations to easily expand their network infrastructure without sacrificing security or performance. Whether it's in a small office environment or a large enterprise network, the bypass switch can be seamlessly integrated to meet the specific needs of the organization.   With the increasing sophistication of cyber threats, it's more important than ever for organizations to have a robust and reliable security infrastructure in place. The Intelligent Network Inline Bypass Switch provides a cost-effective and efficient solution for ensuring the security and performance of a network. By proactively managing network traffic and providing fail-safe protection for security tools, it enables organizations to stay ahead of potential threats and maintain optimal network operations.   In conclusion, the Intelligent Network Inline Bypass Switch is a critical component in a modern network security infrastructure. Its ability to seamlessly reroute traffic during security tool failures, offload traffic during routine maintenance, and scale with the organization's needs makes it an invaluable asset for businesses looking to maximize security and performance. By investing in an Inline Bypass Switch, organizations can effectively address the evolving demands of network security and ensure uninterrupted network operations.
Latest company new about Investing in reliable security tools is crucial to defend your network against various threats
2024/01/12

Investing in reliable security tools is crucial to defend your network against various threats

Network security is an ongoing process. Regularly review and update your security measures to stay ahead of constantly evolving threats. By implementing a comprehensive security strategy and following best practices, you can significantly reduce the risk of network sniffer attacks and other security threats.   Investing in reliable security tools is crucial to defend your network against various threats. Here are some essential security tools that can help you strengthen your network security:   1) Firewall: Firewalls act as a barrier between your internal network and external entities, filtering incoming and outgoing network traffic based on predefined rules. They help block unauthorized access attempts and protect against network-based attacks.   2) Intrusion Detection System (IDS): IDS monitors network traffic for suspicious activities and alerts administrators when potential threats are detected. It helps identify unauthorized access attempts, malware infections, and other security breaches.   3) Intrusion Prevention System (IPS): IPS goes a step further than IDS by not only detecting but also actively blocking or mitigating detected threats. It can automatically take action to prevent or halt malicious activities, reducing the impact of attacks on your network.   4) Antivirus/Anti-malware Software: Deploying reputable antivirus and anti-malware software across your network can help detect and remove known malware, viruses, and other malicious software. Regularly update the software to ensure it can identify the latest threats.   5) Virtual Private Network (VPN): VPNs create an encrypted tunnel that secures your network connections, especially when accessing the internet remotely. They help protect data transmission and maintain privacy, particularly when using public or untrusted networks.   6) Network Packet Brokers (NPBs): NPBs provide visibility into network traffic by capturing, filtering, and forwarding packets to security tools for analysis. They help optimize the performance of security monitoring tools, enabling efficient network monitoring and threat detection. Optimization Technique Description Traffic Filtering Selectively forward relevant network traffic to security tools, reducing the volume of data sent for analysis. Load Balancing Distribute network traffic evenly across multiple security tools to prevent bottlenecks and ensure efficient utilization. Packet Aggregation and Deduplication Aggregate packets from multiple network links and remove duplicate packets, optimizing processing load on monitoring tools. Packet Slicing and Masking Slice packets or remove sensitive information to protect data privacy while still providing critical data for analysis. Protocol and Session Aware Filtering Perform deep packet inspection and filter traffic based on protocols, applications, or session attributes for targeted analysis. Advanced Visibility and Monitoring Capabilities Provide advanced traffic analytics, flow monitoring, and real-time packet capture for comprehensive insights into network behavior.   By implementing Network Packet Brokers, organizations can optimize their security monitoring infrastructure, improving the performance, scalability, and efficiency of their security tools. NPBs enable security teams to focus on analyzing relevant network traffic, enhancing threat detection capabilities, and ensuring a more effective overall security posture.   7) Security Information and Event Management (SIEM) System: SIEM systems collect and analyze security event data from various sources within your network. They help identify patterns, detect anomalies, and provide centralized visibility into potential security incidents.   8) Data Loss Prevention (DLP) Tools: DLP tools monitor and control sensitive data to prevent its unauthorized disclosure. They can identify and prevent data leaks, whether accidental or intentional, by monitoring data transfers and applying policy-based controls.   9) Multi-factor Authentication (MFA): Implementing MFA adds an extra layer of security to user authentication. It requires users to provide multiple pieces of evidence, such as a password, a physical token, or a biometric factor, to gain access to the network resources.   10) Security Assessment and Penetration Testing Tools: These tools help evaluate the security posture of your network by simulating real-world attacks. They identify vulnerabilities and weaknesses that attackers could exploit, allowing you to remediate them before an actual breach occurs.   The selection and implementation of security tools should align with your organization's specific needs and risk profile. It is important to regularly update and maintain these tools to ensure their effectiveness in defending against evolving threats. Additionally, a holistic approach that combines multiple layers of security, user education, and ongoing monitoring is essential for a strong and resilient network defense.
Latest company new about What can the Network Packet Broker do for you? Network Switch vs Network Packet Broker
2024/01/05

What can the Network Packet Broker do for you? Network Switch vs Network Packet Broker

    A network switch and a network packet broker (NPB) are two different devices used in computer networks, although they serve distinct purposes.   Network Switch: A network switch is a fundamental networking device that operates at Layer 2 (Data Link Layer) or Layer 3 (Network Layer) of the OSI model. It is responsible for forwarding data packets between devices within a local area network (LAN). The primary function of a network switch is to examine the destination MAC (Media Access Control) address of incoming network packets and make decisions on how to forward them to the appropriate destination. Switches provide efficient and reliable data transmission by creating dedicated communication paths between connected devices.   Network Packet Broker: A network packet broker (NPB) is a specialized device designed to optimize the visibility and management of network traffic. It operates at higher layers of the OSI model, typically at Layers 4-7 (Transport, Session, Presentation, and Application Layers). The main purpose of an NPB is to intelligently capture, filter, aggregate, and distribute network traffic to various monitoring and security tools for analysis. NPBs provide advanced features such as packet filtering, load balancing, traffic replication, protocol stripping, and SSL decryption to enhance network monitoring and security capabilities.   A Network Packet Broker (NPB) is a network device designed to optimize the visibility and management of network traffic. It acts as a central distribution point for network traffic, allowing network administrators to capture, filter, aggregate, and distribute packets to various monitoring and security tools. The primary function of an NPB is to improve the efficiency and effectiveness of network monitoring and security operations. It accomplishes this by providing the following capabilities:   Capability/Benefit Description Enhanced network visibility Provides comprehensive visibility into network traffic by capturing and aggregating packets from various network links or segments. Efficient network monitoring Filters and forwards relevant packets to monitoring tools, optimizing their usage and preventing tool overload. Improved network security Directs network traffic to security tools (e.g., IDS, IPS, firewalls) for enhanced threat detection and incident response. Load balancing and scalability Distributes network traffic across multiple monitoring or security tools, ensuring workload balance and supporting scalability. Packet manipulation and optimization Offers advanced packet processing capabilities (e.g., slicing, masking, timestamping) to tailor packet data for specific analysis needs and improve tool efficiency. Compliance and privacy Helps meet compliance requirements by removing or obfuscating sensitive information from packets, safeguarding data and ensuring privacy. Network troubleshooting and analysis Assists in network issue identification and resolution by capturing and analyzing network traffic, enabling effective troubleshooting and problem resolution.   Please note that this table provides a concise summary of the capabilities and benefits of an NPB. The actual features and functionalities can vary depending on the specific vendor and model of the NPB device.  
Latest company new about What kind of Transceivers will be used in NetTAP® Network Taps and Network Packet Brokers?
2024/01/03

What kind of Transceivers will be used in NetTAP® Network Taps and Network Packet Brokers?

  What kind of Transceivers will be used in NetTAP® Network Taps and Network Packet Brokers?   Transceiver modules are electronic devices used in communication systems to transmit and receive data over various types of networks. They are commonly used in networking equipment such as switches, routers, and network interface cards. Here are some different types of transceiver modules along with their descriptions and differences:   1. Small Form-Factor Pluggable (SFP) Transceivers: - SFP transceivers are compact and hot-pluggable modules commonly used in Ethernet and Fiber Channel networks. - They support data rates ranging from 100 Mbps to 10 Gbps and can be used with various types of optical fibers, including single-mode and multi-mode fibers. - SFP transceivers come in different variants, such as SX (short wavelength), LX (long wavelength), and CWDM (coarse wavelength division multiplexing), to accommodate different distance requirements.   2. QSFP/QSFP+ Transceivers: - QSFP (Quad Small Form-Factor Pluggable) and QSFP+ are high-density transceiver modules used for high-speed data transmission. - QSFP supports data rates up to 40 Gbps, while QSFP+ supports data rates up to 100 Gbps. - They are commonly used in data center applications, high-performance computing, and InfiniBand networks. - QSFP/QSFP+ transceivers support various network standards, including Ethernet, Fibre Channel, and InfiniBand.   3. XFP Transceivers: - XFP (10 Gigabit Small Form-Factor Pluggable) transceivers are designed for 10 Gbps data transmission. - They are commonly used in fiber optic networks, including Ethernet, SONET/SDH, and Fibre Channel. - XFP transceivers support both single-mode and multi-mode fibers and can operate at different wavelengths depending on the network requirements.   4. CFP/CFP2/CFP4 Transceivers: - CFP (C form-factor pluggable) transceivers are high-performance modules designed for 40 Gbps and 100 Gbps data rates. - CFP2 and CFP4 are smaller form-factor versions of CFP, offering higher port density. - They are used in high-speed optical networks, including Ethernet, OTN (Optical Transport Network), and WDM (Wavelength Division Multiplexing) systems. - CFP/CFP2/CFP4 transceivers support various transmission media, such as multi-mode and single-mode fibers.   5. GBIC (Gigabit Interface Converter) Transceivers: - GBIC transceivers were one of the earliest modular transceiver designs used for Gigabit Ethernet. - They support data rates up to 1 Gbps and are available in both copper and fiber optic variants. - GBIC modules can be hot-swapped, allowing for easy replacement and flexibility in network configurations. - However, GBICs have largely been replaced by smaller form-factor transceivers like SFP.   6. SFP+ (Enhanced Small Form-Factor Pluggable) Transceivers: - SFP+ transceivers are an enhanced version of SFP modules, designed for higher data rates. - They support data rates up to 10 Gbps and are used in applications such as 10 Gigabit Ethernet and Fiber Channel. - SFP+ modules are backward compatible with SFP slots, allowing for easy migration and flexibility in network upgrades.   7. XENPAK Transceivers: - XENPAK transceivers were popular in early 10 Gigabit Ethernet deployments. - They support data rates up to 10 Gbps and are available in both copper and fiber optic variants. - XENPAK modules are larger in size compared to newer form factors like XFP and SFP+.   8. CXP Transceivers: - CXP transceivers are high-density modules primarily used for high-speed data transmission in data center and high-performance computing environments. - They support data rates up to 100 Gbps and have 12 transmit and 12 receive channels. - CXP modules use multiple lanes of parallel optical fibers to achieve high data rates.   9. BiDi (Bidirectional) Transceivers: - BiDi transceivers are designed to transmit and receive data over a single optical fiber using wavelength division multiplexing (WDM) technology. - They enable full-duplex communication by using different wavelengths for upstream and downstream data transmission. - BiDi transceivers are commonly used in applications where fiber availability is limited or costly, such as in metropolitan area networks (MANs) and fiber-to-the-home (FTTH) deployments.     In our Network Taps and Nework Packet Brokers, we common use the following 4 kinds of Optical Transceivers:   1. SFP (Small Form-Factor Pluggable) Transceivers: * SFP transceivers, also known as SFPs or mini-GBICs, are compact and hot-pluggable modules used in Ethernet and Fiber Channel networks. * They support data rates ranging from 100 Mbps to 10 Gbps, depending on the specific variant. * SFP transceivers are available for various optical fiber types, including multi-mode (SX), single-mode (LX), and long-range (LR). * They come with different connector types such as LC, SC, and RJ-45, depending on the network requirements. * SFP modules are widely used due to their small size, versatility, and ease of installation.   2. SFP+ (Enhanced Small Form-Factor Pluggable) Transceivers: * SFP+ transceivers are an enhanced version of SFP modules designed for higher data rates. * They support data rates up to 10 Gbps and are commonly used in 10 Gigabit Ethernet networks. * SFP+ modules are backward compatible with SFP slots, allowing for easy migration and flexibility in network upgrades. * They are available for various fiber types, including multi-mode (SR), single-mode (LR), and direct-attach copper cables (DAC).   3. QSFP (Quad Small Form-Factor Pluggable) Transceivers: * QSFP transceivers are high-density modules used for high-speed data transmission. * They support data rates up to 40 Gbps and are commonly used in data centers and high-performance computing environments. * QSFP modules can transmit and receive data over multiple fiber strands or copper cables simultaneously, providing increased bandwidth. * They are available in various variants, including QSFP-SR4 (multi-mode fiber), QSFP-LR4 (single-mode fiber), and QSFP-ER4 (extended reach). * QSFP modules have an MPO/MTP connector for fiber connections and can also support direct-attach copper cables.   4. QSFP28 (Quad Small Form-Factor Pluggable 28) Transceivers: * QSFP28 transceivers are the next generation of QSFP modules, designed for higher data rates. * They support data rates up to 100 Gbps and are widely used in high-speed data center networks. * QSFP28 modules offer increased port density and lower power consumption compared to previous generations. * They are available in various variants, including QSFP28-SR4 (multi-mode fiber), QSFP28-LR4 (single-mode fiber), and QSFP28-ER4 (extended reach). * QSFP28 modules use a higher modulation scheme and advanced signal processing techniques to achieve higher data rates.   These transceiver modules differ in terms of data rates, form factors, supported network standards, and transmission distances. SFP and SFP+ modules are commonly used for lower-speed applications, while QSFP and QSFP28 modules are designed for higher-speed requirements. It's important to consider the specific network needs and compatibility with networking equipment when selecting the appropriate transceiver module.
Latest company new about NetTAP® wishes you Merry Christmas and Happy New Year 2024 on coperation of Network Monitoring and Security
2023/12/25

NetTAP® wishes you Merry Christmas and Happy New Year 2024 on coperation of Network Monitoring and Security

Dear Partners,   As the year comes to a close, we want to take a moment to express our sincerest gratitude for the exceptional collaboration and partnership we have shared in the realm of Network Packet Broker and Network Tap for Network Monitoring and Security. This Christmas and New Year, we extend our warmest wishes to you and your team.   Merry Christmas! May this festive season bring you well-deserved rest, joy, and precious moments with your loved ones. It is through our combined efforts, expertise, and dedication that we have achieved remarkable milestones together. We are grateful for the trust you have placed in us as your partners, and we look forward to continuing our successful journey in the coming year.   As we approach the threshold of a new year, we want to wish you a Happy New Year 2024 filled with continued growth, success, and prosperity. Our collaboration has been instrumental in delivering cutting-edge solutions to our clients, enhancing network visibility, and ensuring robust security measures. Together, we have made a significant impact in the industry, and we are excited to explore new horizons in the upcoming year.   We would like to express our heartfelt appreciation for your unwavering commitment to excellence, professionalism, and innovation throughout our partnership. Your expertise and contributions have been invaluable, and we are truly grateful for the trust and confidence you have placed in our collective capabilities.   The journey we have embarked upon has been marked by shared successes, continuous learning, and a spirit of collaboration. We value the synergy and mutual growth that our partnership has fostered, and we are confident that our combined efforts will continue to push boundaries and set new standards in the industry.   As we reflect upon the accomplishments of the past year, we are filled with gratitude for the opportunity to work alongside such a remarkable team. We are immensely proud of what we have achieved together and are excited to embrace the challenges and opportunities that lie ahead. On behalf of everyone at [Your Company's Name], we extend our warmest wishes for a joyful and peaceful Christmas and a prosperous New Year. May this festive season be a time of celebration, reflection, and rejuvenation for you and your team.   Thank you once again for your unwavering support, trust, and collaboration. We eagerly anticipate another successful year together, filled with shared achievements and continued growth. Merry Christmas and a Happy New Year to you and your entire team!   Sincerely,   NetTAP Team
Latest company new about What can the NetTAP Network Packet Broker(NPB) do for you?
2023/11/09

What can the NetTAP Network Packet Broker(NPB) do for you?

A Network Packet Broker (NPB) is a network device designed to optimize the visibility and management of network traffic. It acts as a central distribution point for network traffic, allowing network administrators to capture, filter, aggregate, and distribute packets to various monitoring and security tools. The primary function of an NPB is to improve the efficiency and effectiveness of network monitoring and security operations. It accomplishes this by providing the following capabilities:   1. Traffic aggregation: NPBs can aggregate network traffic from multiple network links or segments into a single output stream. This consolidation enables monitoring tools to receive a comprehensive view of network traffic without the need for individual connections to each network segment.   2. Traffic filtering: NPBs can filter network traffic based on various criteria, such as source/destination IP addresses, protocols, ports, or specific application traffic. By selectively forwarding relevant packets to the monitoring tools, NPBs help reduce the processing load on those tools and improve their efficiency.   3. Load balancing: NPBs can distribute network traffic evenly across multiple monitoring tools to ensure optimal utilization of resources. This feature helps prevent tool overload and enables scalability in high-traffic environments.   4. Packet slicing and masking: NPBs can modify packets by removing or obfuscating sensitive information before forwarding them to monitoring tools. This capability ensures compliance with privacy regulations and protects sensitive data from being exposed to unauthorized personnel.   5. Packet deduplication: NPBs can eliminate duplicate packets from the network traffic stream, reducing the processing load on monitoring tools and optimizing their performance.   6. Advanced packet processing: NPBs may offer additional features like protocol decapsulation, SSL decryption, packet timestamping, packet header modification, and packet payload analysis. These capabilities enhance the monitoring and analysis capabilities of the connected tools.   The Network Packet Broker (NPB) can offer several benefits and capabilities to network administrators and organizations.   Capability/Benefit Description Enhanced network visibility Provides comprehensive visibility into network traffic by capturing and aggregating packets from various network links or segments. Efficient network monitoring Filters and forwards relevant packets to monitoring tools, optimizing their usage and preventing tool overload. Improved network security Directs network traffic to security tools (e.g., IDS, IPS, firewalls) for enhanced threat detection and incident response. Load balancing and scalability Distributes network traffic across multiple monitoring or security tools, ensuring workload balance and supporting scalability. Packet manipulation and optimization Offers advanced packet processing capabilities (e.g., slicing, masking, timestamping) to tailor packet data for specific analysis needs and improve tool efficiency. Compliance and privacy Helps meet compliance requirements by removing or obfuscating sensitive information from packets, safeguarding data and ensuring privacy. Network troubleshooting and analysis Assists in network issue identification and resolution by capturing and analyzing network traffic, enabling effective troubleshooting and problem resolution.     Why Network Switch can NOT replace the Network Packet Broker functions?   Because, they are two different devices used in computer networks, although they serve distinct purposes.   Network Switch: A network switch is a fundamental networking device that operates at Layer 2 (Data Link Layer) or Layer 3 (Network Layer) of the OSI model. It is responsible for forwarding data packets between devices within a local area network (LAN). The primary function of a network switch is to examine the destination MAC (Media Access Control) address of incoming network packets and make decisions on how to forward them to the appropriate destination. Switches provide efficient and reliable data transmission by creating dedicated communication paths between connected devices.   Network Packet Broker: A network packet broker (NPB) is a specialized device designed to optimize the visibility and management of network traffic. It operates at higher layers of the OSI model, typically at Layers 4-7 (Transport, Session, Presentation, and Application Layers). The main purpose of an NPB is to intelligently capture, filter, aggregate, and distribute network traffic to various monitoring and security tools for analysis. NPBs provide advanced features such as packet filtering, load balancing, traffic replication, protocol stripping, and SSL decryption to enhance network monitoring and security capabilities.  
1 2 3
Google Analytics -->